The SAS program creates a data set with the student names and scores, uses PROC MEANS to calculate the mean and sum for each student, and outputs the results in two tables. Data _null_; input Names $ Subject Score; cards; John Math 90 John English 96 John French 87 John Physics 45 John History 77 Mary Math 80 Mary English 60 Mary French 87 Mary Physics 65 Mary History 66 Dick Math 78 Dick English 78 Dick French 56 Dick Physics 34 Dick History 88 Lucy Math 74 Luc

1. PROC STANDARD
SAS FUNCTIONS
SAS OPERATIONS
Canicia Smith
caniciasmith@gmail.com
Office hour: Wed 13:00-14:00

2. PROC STANDARD

3. What does proc standard do?
1. It standardizes variables in a data set to a
given mean and standard deviation.
2. It creates a new data set containing the
standardized values
http://support.sas.com/documentation/cdl/en/proc/61895/HTM
L/default/viewer.htm#a000146748.htm

5. Example
New data set

6. SAS FUNCTIONS

7. SAMPLE STATISTICS
Mean
=Mean(var1, var2)
Sum
=Sum(var1, var2)
Square root
=Sqrt(var)
Round
=round(var, .1)

8. SAMPLE STATISTICS (con.)
Max
max(argument1, argument2)
Min
min(argument1, argument2)
Mod
mod(argument1,argument-2)
Eg. 9/3
Argument1- the dividend=9
Argument2-the divisor=3

9. LOG
• Log
X=log(var);

10. PROBABILITY
Ex. Poisson probability distribution
cdf (‘POISSON’, n, m)
N is an integer random variable (range: n=0,1, ..)
M is a numeric mean parameter (range: m>0)

11. EXPONENTIAL
• Exponential x=exp(1.0)=2.718
exp (argument)

12. SAS OPERATORS

13. SAS OPERATORS (ARITHMETIC)
Symbol Definition Example
raise to a
** a**3
power
* multiplication 2*y
/ division var/5
+ addition num+3
var1-
- subtraction
var2

14. SAS OPERATORS (COMPARISON)
Symbo Mnemonic
Definition Example
l Equivalent
= EQ equal to a=3
^= NE not equal to a ne 3
> GT greater than num>5
< LT less than num<5
greater than or equal
>= GE var>=300
to
<= LE less than or equal to var<=300
num in (3, 4,
IN IN equal to one of a list
5)

15. SAS OPERATORS (LOGICAL)
Symbol Mnemonic Equivalent Example
& AND (a>b) & (c>d)
/ OR (a>b) / (c>d)
^ NOT not (a>b)

16. QUESTIONS~?????

17. Possible Exam questions
Create a data set to give this output.
Which statement should be inserted to
produce the group output?

18. Create a data set to get this output..

19. Proc means
What statement would produce
the following output?

20. What statements do you need to produce the second
output?

21. 5 students name John (boy), Mary (girl), Dick (boy),
Lucy (girl), and James (boy) has the following scores in
the following subjects:
Names
Subject John Mary Dick Lucy James
Math 90 80 78 74 70
English 96 60 78 50 74
French 87 87 56 78 95
Physics 45 65 34 77 73
History 77 66 88 56 89
1. Write a sas program to output this data.
2. Find the mean and sum of each student’s grades.