The document analyzes stock data for several companies from 2005-2014. It plots stock prices over time, calculates correlation coefficients between price and volume for different years, and estimates beta values comparing stock returns to S&P 500 returns for 2009-2010 and 2013-2014. The analyses found mostly weak correlations between price and volume, positive betas indicating movement with the S&P 500 for most stocks, and low R-squared values for regressions of stock returns on market returns.
The document details data preprocessing and feature engineering steps for a machine learning model to predict West Nile virus presence. It reads in training, test, weather and spraying data, cleans variables, derives new features like distance to locations and week numbers, and splits weather data by station. New weather features like accumulated degree days are created. Moving averages and sums are also calculated for temperature, precipitation, and degree days over 1 and 2 week periods.
The Ring programming language version 1.3 book - Part 63 of 88Mahmoud Samir Fayed
This document provides documentation for Ring's Qt integration and includes code for initializing the Qt framework in Ring and defining classes and methods for various Qt widgets and objects. It includes code for including necessary Qt header files, initializing QApplication, and defining Ring classes, methods, and functions that wrap common Qt classes and functionality like QObject, QWidget, qApp and others.
Gearmam, from the_worker's_perspective copyBrian Aker
Gearman is a distributed processing platform that allows users to offload tasks like image resizing or file manipulation to worker servers. It supports asynchronous and synchronous requests across languages like PHP, Python, Java and allows for functions to return status updates and send data in chunks. Tasks can be split across multiple workers, aggregated, pipelined and support features like fault tolerance, load balancing and namespaces.
Gearman is a distributed processing platform that allows users to offload tasks like image resizing to worker servers. It supports asynchronous and synchronous requests, task partitioning and aggregation. Multiple languages can interface with Gearman via client and worker functions. Recent versions have added features like namespaces, SSL, and an uplift in administrative commands.
Linear Model Selection and Regularization (Article 6 - Practical exercises)Theodore Grammatikopoulos
The document discusses methods for improving linear regression models, including subset selection, shrinkage, and dimensional reduction. It applies these methods to baseball player salary data to predict salary based on performance statistics. Specifically, it uses subset selection methods like best subset selection, forward stepwise selection, and backward stepwise selection to select subsets of variables that best predict salary. Plots of model metrics like RSS, adjusted R-squared, Cp, and BIC are used to evaluate the optimal subset size.
This document defines a C++ FinancialCalculator class with methods to calculate financial metrics like future value, rate of return, acid test ratio, and find minimum/maximum values in arrays. It also defines a FVc class that inherits from FinancialCalculator to calculate future value compounded over multiple periods. The main function uses the classes to build a menu-driven financial calculator application that prompts the user for input values and displays output values for different calculations.
1) God sent his Son, Jesus Christ, when the time was right in order to redeem humanity from being under the law, so that through faith people could be adopted as sons of God.
2) God sent the Holy Spirit into the hearts of believers, crying "Abba, Father," confirming their adoption as sons and making them heirs along with Jesus Christ.
3) Through faith in Jesus Christ by the power of the Holy Spirit, God the Father has provided the gift of sonship, making believers no longer slaves but sons and daughters with all the rights and privileges of God's family.
Espiritismo, Doutrina espírita, Kardecismo ou Espiritismo kardecista é uma doutrina religiosa e filosófica mediúnica ou moderno espiritualista. Foi "codificada" (ou seja, tomou corpo de doutrina - pela universalidade dos ensinos dos espíritos) pelo pedagogo francês Hippolyte Léon Denizard Rivail, usando o pseudônimo Allan Kardec.
Apesar de ser uma religião completa e autônoma apenas no Brasil, o espiritismo tem se expandido e, segundo dados do ano 2005, conta com cerca de 15 milhões de adeptos espalhados entre diversos países, como Portugal, Espanha, França, Reino Unido, Bélgica Estados Unidos, Japão, Alemanha, Argentina, Canadá, e, principalmente, Cuba, Jamaica e Brasil, sendo que este último tem a maior quantidade de adeptos no mundo. No entanto, vale frisar que é difícil estipular a quantidade existente de espíritas, pois as principais estipulações sobre isso são baseadas em censos demográficos em que se é perguntado qual a religião dos cidadãos, porém nem todos os espíritas interpretam o Espiritismo como religião.
The document details data preprocessing and feature engineering steps for a machine learning model to predict West Nile virus presence. It reads in training, test, weather and spraying data, cleans variables, derives new features like distance to locations and week numbers, and splits weather data by station. New weather features like accumulated degree days are created. Moving averages and sums are also calculated for temperature, precipitation, and degree days over 1 and 2 week periods.
The Ring programming language version 1.3 book - Part 63 of 88Mahmoud Samir Fayed
This document provides documentation for Ring's Qt integration and includes code for initializing the Qt framework in Ring and defining classes and methods for various Qt widgets and objects. It includes code for including necessary Qt header files, initializing QApplication, and defining Ring classes, methods, and functions that wrap common Qt classes and functionality like QObject, QWidget, qApp and others.
Gearmam, from the_worker's_perspective copyBrian Aker
Gearman is a distributed processing platform that allows users to offload tasks like image resizing or file manipulation to worker servers. It supports asynchronous and synchronous requests across languages like PHP, Python, Java and allows for functions to return status updates and send data in chunks. Tasks can be split across multiple workers, aggregated, pipelined and support features like fault tolerance, load balancing and namespaces.
Gearman is a distributed processing platform that allows users to offload tasks like image resizing to worker servers. It supports asynchronous and synchronous requests, task partitioning and aggregation. Multiple languages can interface with Gearman via client and worker functions. Recent versions have added features like namespaces, SSL, and an uplift in administrative commands.
Linear Model Selection and Regularization (Article 6 - Practical exercises)Theodore Grammatikopoulos
The document discusses methods for improving linear regression models, including subset selection, shrinkage, and dimensional reduction. It applies these methods to baseball player salary data to predict salary based on performance statistics. Specifically, it uses subset selection methods like best subset selection, forward stepwise selection, and backward stepwise selection to select subsets of variables that best predict salary. Plots of model metrics like RSS, adjusted R-squared, Cp, and BIC are used to evaluate the optimal subset size.
This document defines a C++ FinancialCalculator class with methods to calculate financial metrics like future value, rate of return, acid test ratio, and find minimum/maximum values in arrays. It also defines a FVc class that inherits from FinancialCalculator to calculate future value compounded over multiple periods. The main function uses the classes to build a menu-driven financial calculator application that prompts the user for input values and displays output values for different calculations.
1) God sent his Son, Jesus Christ, when the time was right in order to redeem humanity from being under the law, so that through faith people could be adopted as sons of God.
2) God sent the Holy Spirit into the hearts of believers, crying "Abba, Father," confirming their adoption as sons and making them heirs along with Jesus Christ.
3) Through faith in Jesus Christ by the power of the Holy Spirit, God the Father has provided the gift of sonship, making believers no longer slaves but sons and daughters with all the rights and privileges of God's family.
Espiritismo, Doutrina espírita, Kardecismo ou Espiritismo kardecista é uma doutrina religiosa e filosófica mediúnica ou moderno espiritualista. Foi "codificada" (ou seja, tomou corpo de doutrina - pela universalidade dos ensinos dos espíritos) pelo pedagogo francês Hippolyte Léon Denizard Rivail, usando o pseudônimo Allan Kardec.
Apesar de ser uma religião completa e autônoma apenas no Brasil, o espiritismo tem se expandido e, segundo dados do ano 2005, conta com cerca de 15 milhões de adeptos espalhados entre diversos países, como Portugal, Espanha, França, Reino Unido, Bélgica Estados Unidos, Japão, Alemanha, Argentina, Canadá, e, principalmente, Cuba, Jamaica e Brasil, sendo que este último tem a maior quantidade de adeptos no mundo. No entanto, vale frisar que é difícil estipular a quantidade existente de espíritas, pois as principais estipulações sobre isso são baseadas em censos demográficos em que se é perguntado qual a religião dos cidadãos, porém nem todos os espíritas interpretam o Espiritismo como religião.
El documento describe las características básicas del suelo. Explica que el suelo es la capa superficial de la corteza terrestre y soporte para la vida. Señala que la ciencia que estudia el suelo es la edafología. Además, detalla los principales usos del suelo como la agricultura, ganadería y construcción. Finalmente, resume que el suelo se compone de elementos inorgánicos como minerales, agua y gases, y elementos orgánicos como organismos vivos.
A estrutura da matéria segundo os espíritos primeira parte (psicografia p. ...Ricardo Akerman
O documento discute a estrutura da matéria segundo os espíritos, apresentando sete campos fundamentais, incluindo a mente, o amor divino e o fluido cósmico universal. A primeira mensagem introduz o conceito de que o perispírito é constituído de antimatéria e o fluido cósmico universal pode assumir diferentes estruturas dependendo do nível energético.
O transístor (português europeu) ou transistor (português brasileiro) é um componente eletrônico que começou a popularizar-se na década de 1950, tendo sido o principal responsável pela revolução da eletrônica na década de 1960. São utilizados principalmente como amplificadores e interruptores de sinais elétricos, além de retificadores elétricos em um circuito, podendo ter variadas funções. O termo provém do inglês transfer resistor (resistor/resistência de transferência), como era conhecido pelos seus inventores.[1]
O processo de transferência de resistência, no caso de um circuito analógico, significa que a impedância característica do componente varia para cima ou para baixo da polarização pré-estabelecida. Graças a esta função, a corrente elétrica que passa entre coletor e emissor do transistor varia dentro de determinados parâmetros pré-estabelecidos pelo projetista do circuito eletrônico. Esta variação é feita através da variação de corrente num dos terminais chamados base, o que, consequentemente, ocasiona o processo de amplificação de sinal.
Entende-se por “amplificar” o procedimento de tornar um sinal elétrico mais forte. Um sinal elétrico de baixa intensidade, como os sinais gerados por um microfone, é injetado num circuito eletrônico (transistorizado por exemplo), cuja função principal é transformar este sinal fraco gerado pelo microfone em sinais elétricos com as mesmas características, mas com potência suficiente para excitar os alto-falantes. A este processo todo dá-se o nome de ganho de sinal.
La cultura Chavín se ubicó en el departamento de Áncash y fue descubierta y estudiada por Julio C. Tello. Se caracterizó por la cerámica con figuras geométricas y de animales. Tello la llamó "Cultura Matriz" debido a que influenció a otras culturas posteriores. Sus principales deidades fueron el Dios Felino, el Dios de las Montañas y el Dios de los Báculos.
Este documento describe las diferentes clasificaciones de rocas según su origen y composición. Las rocas se clasifican en sedimentarias, metamórficas e ígneas. Las sedimentarias se forman a partir de sedimentos, las metamórficas se originan cuando otras rocas son sometidas a presión y calor, y las ígneas se forman por la solidificación del magma. Cada grupo incluye varios tipos de rocas con características específicas.
Brite Ideas, Better Events: Webinar Series - Event Ninja TipsVenues2Events4379
The document discusses the benefits of meditation for reducing stress and anxiety. Regular meditation practice can help calm the mind and body by lowering heart rate and blood pressure. Making meditation a part of a daily routine, even if just 10-15 minutes per day, can offer improvements to mood, focus, and overall feelings of well-being over time.
La contaminación ambiental afecta el aire, el agua y los suelos. El documento es un trabajo de investigación de una estudiante de 4to grado sobre la contaminación ambiental para su escuela "Paraíso del Niño".
Picenza Việt Nam chuyên sản xuất thiết bị vệ sinh, chậu rửa bát inox cao cấp kiểu dáng sang trọng phù hợp với mọi không gian phòng bếp của mọi gia đình
http://picenza.com.vn/chau-rua-inox-chau-bep-pl90.html
http://picenza.com.vn/thong-tin-thi-truong/cach-chon-san-pham-inox-tot-nd61.html
El documento presenta una serie de preguntas sobre geografía andina para un alumno de 5to grado. Las preguntas incluyen: 1) Definir la región andina, 2) Completar oraciones sobre características de las cordilleras andinas como montañas eslabonadas y el nevado más alto del Perú, 3) Explicar características del relieve como cañones y nevados, 4) Describir los valles interandinos, 5) Mencionar ejemplos de cordilleras andinas, 6) Definir mesetas, y 7) M
El documento presenta preguntas sobre el absolutismo como forma de gobierno que surgió en Europa entre los siglos XVI y XVIII. Pregunta sobre las causas del absolutismo como la decadencia del feudalismo y el apoyo de la nobleza a los reyes. También pregunta sobre los poderes que acumularon los reyes absolutistas y por qué los pobladores apoyaron la concentración del poder en manos de los monarcas.
ESTRATEGIAS DE LECTURA EN PREESCOLAR CON PADRES DE FAMILIA A TRAVES DE MEDIOS...Andrea Perez Nava
Este proyecto busca promover el hábito de la lectura en niños de preescolar a través de la participación de los padres de familia y el uso de la tecnología. Se realizará una reunión para motivar a los padres, se creará un blog con actividades de lectura y una biblioteca virtual, y se evaluará la participación de los niños y padres en estas actividades.
El documento resume los conceptos básicos del universo. Explica que el universo está compuesto de materia, espacio, tiempo y energía y se formó hace aproximadamente 15,000 millones de años. Detalla los principales elementos químicos que componen el universo como el hidrógeno, helio, oxígeno y carbono. Además, distingue entre materia visible, materia oscura y energía oscura en el universo. Finalmente, presenta las principales teorías sobre el origen del universo como la teoría del Big Bang, un
This document describes performing extreme value analysis on daily precipitation data from Fort Collins, Colorado from 1900 to 1999 using R. It first reads in and plots the data, summarizing seasonal variations. It then performs two extreme value analysis approaches: the block maxima approach, which fits a generalized extreme value distribution to summer maximum daily precipitation values within blocks; and the peak over threshold approach, which fits a generalized Pareto distribution to values exceeding a threshold. It estimates return levels such as the 100-year event and calculates confidence intervals.
Петер Густав Лежен Сирен был прав. Вся структура теории чисел основана на алгоритмах для нахождения наибольшего общего делителя двух чисел. Алгоритм Евклида является фундаментальным для этой области математики.
The interaction between the alien and the boy was insightful yet playful. The alien shared stories from its travels that highlighted its curious and artistic nature, while the boy responded with childlike wonder. Though their views of the world differed in some ways due to their different experiences, their discussion revealed a shared sense of creativity, humor, and open-mindedness.
This document loads various libraries and reads in multiple csv files containing transportation data. It then performs some data cleaning and preprocessing steps. Various outputs are defined to render tables and plots of subsets of the data. Plots are created to visualize relationships between weighted time, cost, and safety metrics. Interactive elements are added to output text describing user input from the plots. Maps and motion charts are also defined as outputs to visualize additional data aspects.
This document provides code for backtesting a trading strategy using the quantstrat package in R. It loads relevant packages, defines parameters like the ticker ("SPY"), dates, and a trade size. Technical indicators like moving averages and RSI are calculated on SPY data. Signals are defined to generate buy/sell signals when indicators cross thresholds. Rules are added to enter/exit positions when signals occur. The strategy is applied using applyStrategy() and results are analyzed.
The document contains code snippets and SQL queries for various stored procedures and user defined functions related to reporting and data analysis, including functions to get the ISO year and week from a date, retrieve the first and last day of a month, and a stored procedure to generate a games overview report pulling data from various tables to summarize metrics like turnover, winnings, and active customers by game, date period, and customer market.
It also includes a query to retrieve customer data like account details, segmentation, and casino activity and revenue for a retention campaign analysis.
- PostGIS is a spatial database extender for PostgreSQL that allows it to store, query, and manipulate spatial data. It provides functions for spatial data input/output/format conversion and advanced spatial analysis.
- PostGIS allows spatial queries on geometry columns to select, aggregate, and analyze spatial data using functions like ST_Within and ST_Distance. It enables spatial joins and queries on real-world geometric objects like points, lines, and polygons.
- PostGIS is widely used for GIS applications like tracking and analyzing environmental changes over time by comparing vegetation coverage from 1788 and 1988 datasets in Australia.
Fast, affordable seismic tools are enabling more widespread use of seismic data for ongoing development operations. Seismic attributes can serve as proxies for reservoir characteristics that influence productivity, such as natural fractures. New approaches like Well Productivity Analysis and modular seismic acquisition aim to leverage seismic data to predict production and identify opportunities for infill drilling, refracting, and improved completions - making seismic a standard operational tool.
El documento describe las características básicas del suelo. Explica que el suelo es la capa superficial de la corteza terrestre y soporte para la vida. Señala que la ciencia que estudia el suelo es la edafología. Además, detalla los principales usos del suelo como la agricultura, ganadería y construcción. Finalmente, resume que el suelo se compone de elementos inorgánicos como minerales, agua y gases, y elementos orgánicos como organismos vivos.
A estrutura da matéria segundo os espíritos primeira parte (psicografia p. ...Ricardo Akerman
O documento discute a estrutura da matéria segundo os espíritos, apresentando sete campos fundamentais, incluindo a mente, o amor divino e o fluido cósmico universal. A primeira mensagem introduz o conceito de que o perispírito é constituído de antimatéria e o fluido cósmico universal pode assumir diferentes estruturas dependendo do nível energético.
O transístor (português europeu) ou transistor (português brasileiro) é um componente eletrônico que começou a popularizar-se na década de 1950, tendo sido o principal responsável pela revolução da eletrônica na década de 1960. São utilizados principalmente como amplificadores e interruptores de sinais elétricos, além de retificadores elétricos em um circuito, podendo ter variadas funções. O termo provém do inglês transfer resistor (resistor/resistência de transferência), como era conhecido pelos seus inventores.[1]
O processo de transferência de resistência, no caso de um circuito analógico, significa que a impedância característica do componente varia para cima ou para baixo da polarização pré-estabelecida. Graças a esta função, a corrente elétrica que passa entre coletor e emissor do transistor varia dentro de determinados parâmetros pré-estabelecidos pelo projetista do circuito eletrônico. Esta variação é feita através da variação de corrente num dos terminais chamados base, o que, consequentemente, ocasiona o processo de amplificação de sinal.
Entende-se por “amplificar” o procedimento de tornar um sinal elétrico mais forte. Um sinal elétrico de baixa intensidade, como os sinais gerados por um microfone, é injetado num circuito eletrônico (transistorizado por exemplo), cuja função principal é transformar este sinal fraco gerado pelo microfone em sinais elétricos com as mesmas características, mas com potência suficiente para excitar os alto-falantes. A este processo todo dá-se o nome de ganho de sinal.
La cultura Chavín se ubicó en el departamento de Áncash y fue descubierta y estudiada por Julio C. Tello. Se caracterizó por la cerámica con figuras geométricas y de animales. Tello la llamó "Cultura Matriz" debido a que influenció a otras culturas posteriores. Sus principales deidades fueron el Dios Felino, el Dios de las Montañas y el Dios de los Báculos.
Este documento describe las diferentes clasificaciones de rocas según su origen y composición. Las rocas se clasifican en sedimentarias, metamórficas e ígneas. Las sedimentarias se forman a partir de sedimentos, las metamórficas se originan cuando otras rocas son sometidas a presión y calor, y las ígneas se forman por la solidificación del magma. Cada grupo incluye varios tipos de rocas con características específicas.
Brite Ideas, Better Events: Webinar Series - Event Ninja TipsVenues2Events4379
The document discusses the benefits of meditation for reducing stress and anxiety. Regular meditation practice can help calm the mind and body by lowering heart rate and blood pressure. Making meditation a part of a daily routine, even if just 10-15 minutes per day, can offer improvements to mood, focus, and overall feelings of well-being over time.
La contaminación ambiental afecta el aire, el agua y los suelos. El documento es un trabajo de investigación de una estudiante de 4to grado sobre la contaminación ambiental para su escuela "Paraíso del Niño".
Picenza Việt Nam chuyên sản xuất thiết bị vệ sinh, chậu rửa bát inox cao cấp kiểu dáng sang trọng phù hợp với mọi không gian phòng bếp của mọi gia đình
http://picenza.com.vn/chau-rua-inox-chau-bep-pl90.html
http://picenza.com.vn/thong-tin-thi-truong/cach-chon-san-pham-inox-tot-nd61.html
El documento presenta una serie de preguntas sobre geografía andina para un alumno de 5to grado. Las preguntas incluyen: 1) Definir la región andina, 2) Completar oraciones sobre características de las cordilleras andinas como montañas eslabonadas y el nevado más alto del Perú, 3) Explicar características del relieve como cañones y nevados, 4) Describir los valles interandinos, 5) Mencionar ejemplos de cordilleras andinas, 6) Definir mesetas, y 7) M
El documento presenta preguntas sobre el absolutismo como forma de gobierno que surgió en Europa entre los siglos XVI y XVIII. Pregunta sobre las causas del absolutismo como la decadencia del feudalismo y el apoyo de la nobleza a los reyes. También pregunta sobre los poderes que acumularon los reyes absolutistas y por qué los pobladores apoyaron la concentración del poder en manos de los monarcas.
ESTRATEGIAS DE LECTURA EN PREESCOLAR CON PADRES DE FAMILIA A TRAVES DE MEDIOS...Andrea Perez Nava
Este proyecto busca promover el hábito de la lectura en niños de preescolar a través de la participación de los padres de familia y el uso de la tecnología. Se realizará una reunión para motivar a los padres, se creará un blog con actividades de lectura y una biblioteca virtual, y se evaluará la participación de los niños y padres en estas actividades.
El documento resume los conceptos básicos del universo. Explica que el universo está compuesto de materia, espacio, tiempo y energía y se formó hace aproximadamente 15,000 millones de años. Detalla los principales elementos químicos que componen el universo como el hidrógeno, helio, oxígeno y carbono. Además, distingue entre materia visible, materia oscura y energía oscura en el universo. Finalmente, presenta las principales teorías sobre el origen del universo como la teoría del Big Bang, un
This document describes performing extreme value analysis on daily precipitation data from Fort Collins, Colorado from 1900 to 1999 using R. It first reads in and plots the data, summarizing seasonal variations. It then performs two extreme value analysis approaches: the block maxima approach, which fits a generalized extreme value distribution to summer maximum daily precipitation values within blocks; and the peak over threshold approach, which fits a generalized Pareto distribution to values exceeding a threshold. It estimates return levels such as the 100-year event and calculates confidence intervals.
Петер Густав Лежен Сирен был прав. Вся структура теории чисел основана на алгоритмах для нахождения наибольшего общего делителя двух чисел. Алгоритм Евклида является фундаментальным для этой области математики.
The interaction between the alien and the boy was insightful yet playful. The alien shared stories from its travels that highlighted its curious and artistic nature, while the boy responded with childlike wonder. Though their views of the world differed in some ways due to their different experiences, their discussion revealed a shared sense of creativity, humor, and open-mindedness.
This document loads various libraries and reads in multiple csv files containing transportation data. It then performs some data cleaning and preprocessing steps. Various outputs are defined to render tables and plots of subsets of the data. Plots are created to visualize relationships between weighted time, cost, and safety metrics. Interactive elements are added to output text describing user input from the plots. Maps and motion charts are also defined as outputs to visualize additional data aspects.
This document provides code for backtesting a trading strategy using the quantstrat package in R. It loads relevant packages, defines parameters like the ticker ("SPY"), dates, and a trade size. Technical indicators like moving averages and RSI are calculated on SPY data. Signals are defined to generate buy/sell signals when indicators cross thresholds. Rules are added to enter/exit positions when signals occur. The strategy is applied using applyStrategy() and results are analyzed.
The document contains code snippets and SQL queries for various stored procedures and user defined functions related to reporting and data analysis, including functions to get the ISO year and week from a date, retrieve the first and last day of a month, and a stored procedure to generate a games overview report pulling data from various tables to summarize metrics like turnover, winnings, and active customers by game, date period, and customer market.
It also includes a query to retrieve customer data like account details, segmentation, and casino activity and revenue for a retention campaign analysis.
- PostGIS is a spatial database extender for PostgreSQL that allows it to store, query, and manipulate spatial data. It provides functions for spatial data input/output/format conversion and advanced spatial analysis.
- PostGIS allows spatial queries on geometry columns to select, aggregate, and analyze spatial data using functions like ST_Within and ST_Distance. It enables spatial joins and queries on real-world geometric objects like points, lines, and polygons.
- PostGIS is widely used for GIS applications like tracking and analyzing environmental changes over time by comparing vegetation coverage from 1788 and 1988 datasets in Australia.
Fast, affordable seismic tools are enabling more widespread use of seismic data for ongoing development operations. Seismic attributes can serve as proxies for reservoir characteristics that influence productivity, such as natural fractures. New approaches like Well Productivity Analysis and modular seismic acquisition aim to leverage seismic data to predict production and identify opportunities for infill drilling, refracting, and improved completions - making seismic a standard operational tool.
you need to complete the r code and a singlepage document c.pdfadnankhan605720
you need to complete the r code and a single-page document containing two figures, report the
parameters you estimate and discuss how well your power law fits the network data, and explain
the finding.
Question: images
incomplete r code:
# IDS 564 - Spring 2023
# Lab 4 R Code - Estimating the Degree Exponent of a Scale-free Network
#=========================================================================
=====================
# 0. INITIATION
==========================================================================
=
#=========================================================================
=====================
## You'll need VGAM for the zeta function
# install.packages("VGAM") ## When prompted to install from binary version, select no
library(VGAM)
## You'll need this when calculating goodness of fit
# install.packages("parallel")
library(parallel)
library(ggplot2)
library(ggthemes)
library(dplyr)
library(tidyr)
##------------------------------------------------------------------------------
## This function will calculate the zeta function for you. You don't need to worry about it! Run it
and continue.
## gen_zeta(gamma , shift) will give you a number
gen_zeta <- function (gamma, shift = 1, deriv = 0)
{
deriv.arg <- deriv
rm(deriv)
if (!is.Numeric(deriv.arg, length.arg = 1, integer.valued = TRUE))
stop("'deriv' must be a single non-negative integer")
if (deriv.arg < 0 || deriv.arg > 2)
stop("'deriv' must be 0, 1, or 2")
if (deriv.arg > 0)
return(zeta.specials(Zeta.derivative(gamma, deriv.arg = deriv.arg,
shift = shift), gamma, deriv.arg, shift))
if (any(special <- Re(gamma) <= 1)) {
ans <- gamma
ans[special] <- Inf
special3 <- Re(gamma) < 1
ans[special3] <- NA
special4 <- (0 < Re(gamma)) & (Re(gamma) < 1) & (Im(gamma) == 0)
# ans[special4] <- Zeta.derivative(gamma[special4], deriv.arg = deriv.arg, shift = shift)
special2 <- Re(gamma) < 0
if (any(special2)) {
gamma2 <- gamma[special2]
cgamma <- 1 - gamma2
ans[special2] <- 2^(gamma2) * pi^(gamma2 - 1) * sin(pi *
gamma2/2) * gamma(cgamma) * Recall(cgamma)
}
if (any(!special)) {
ans[!special] <- Recall(gamma[!special])
}
return(zeta.specials(ans, gamma, deriv.arg, shift))
}
aa <- 12
ans <- 0
for (ii in 0:(aa - 1)) ans <- ans + 1/(shift + ii)^gamma
ans <- ans + Zeta.aux(shape = gamma, aa, shift = shift)
ans[shift <= 0] <- NaN
zeta.specials(ans, gamma, deriv.arg = deriv.arg, shift = shift)
}
## example:
gen_zeta(2.1, 4)
##------------------------------------------------------------------------------
## The P_k (the CDF)
P_k = function(gamma, k, k_sat){
### fill the function
return(1 - ( gen_zeta(gamma, k) / ... ))
}
##------------------------------------------------------------------------------
my_theme <- theme_classic() +
theme(legend.position = "bottom", legend.box = "horizontal", legend.direction = "horizontal",
title = element_text(size = 18), axis.title = element_text(size = 14),
axis.text.y = element_text(size = 16), axis.text.x = element_text(size = 16),
strip.text = element_text(size.
This document discusses using MongoDB for chemical similarity analysis. It describes storing compound fingerprints in MongoDB collections and querying them to find similar compounds. The approach involves building a fingerprint index, mapping over compounds to calculate similarities, and reducing the results to find the closest matches. This allows evaluating chemical similarity for millions of compounds faster than pairwise comparisons.
Functional Gradient Boosting based on Residual Network PerceptionAtsushi Nitanda
- The document proposes a functional gradient boosting approach based on residual networks for classification problems.
- It defines an objective function to minimize the loss and regularization terms. The functional gradient is then computed to update the model in each iteration.
- A kernel assumption is made and a specific kernel choice is presented using the gradient of the loss function. Convergence bounds are proved based on the margin distribution and the gradient of the loss function.
This document appears to be a series of nonsensical symbols, letters, and numbers with no discernible meaning or story. It consists of repetitive blocks of symbols formatted similarly across multiple pages but without any coherent words, sentences, or meaning that could be summarized in 3 sentences or less.
- The document discusses random number generation and probability distributions. It presents methods for generating random numbers from Bernoulli, binomial, beta, and multinomial distributions using random bits generated from linear congruential generators.
- Graphical examples are shown comparing histograms of generated random samples to theoretical probability density functions. Code examples in R demonstrate how to simulate random number generation from various discrete distributions.
- The goal is to introduce different methods for random number generation from basic discrete distributions that are important for modeling random phenomena and Monte Carlo simulations.
Gambas is a free programming language derived from Basic. It distributes under the GNU GPL license. It allows creating forms with command buttons, text boxes, and many other controls and linking them to databases. Gambas is a simple programming language for free platforms (such as GNU/Linux and BSD). This example allows us to perform a subtraction. It takes numbers as input, performs the subtraction, and prints the result.
Gambas is a free programming language derived from Basic. It distributes under the GNU GPL license. It allows creating forms with command buttons, text boxes, and many other controls and linking them to databases. Gambas is a simple programming language for free platforms (such as GNU/Linux and BSD). This example allows us to perform a subtraction. It takes numbers as input, performs the subtraction, and prints the result.
Gambas is a free programming language derived from Basic. It distributes under the GNU GPL license. It allows creating forms with command buttons, text boxes, and many other controls and linking them to databases. Gambas is a simple programming language for free platforms (such as GNU/Linux and BSD). This example allows us to perform a subtraction. It takes numbers as input, performs the subtraction, and prints the result.