Prepared by VOLKAN OBAN Reference:https://github.com/leonawicz/HtmlWidgetExamples/blob/master/code/ex_dt_sparkline.R

1. url("https://github.com/leonawicz/HtmlWidgetExamples/blob/master/data/climate.RData")
library(data.table)
library(reshape2)
library(dplyr)
library(DT)
library(sparkline)
dat <- mutate(dat, Decade=paste0(Year - Year %% 10, "s"))
r <- range(filter(dat, Var=="Temperature")$Val)
# @knitr table
datatable(dat, rownames=FALSE)
# @knitr defs
colDefs1 <- list(list(targets=c(1:12), render=JS("function(data, type, full){
return '<span class=spark>' + data + '</span>' }")))
colDefs2 <- list(list(targets=c(1:6), render=JS("function(data, type, full){
return '<span class=spark>' + data + '</span>' }")))
# @knitr callbacks
bar_string <- "type: 'bar', barColor: 'orange', negBarColor: 'purple',
highlightColor: 'black'"
cb_bar = JS(paste0("function (oSettings, json) {
$('.spark:not(:has(canvas))').sparkline('html', { ", bar_string, " }); }"),
collapse="")
line_string <- "type: 'line', lineColor: 'black', fillColor: '#ccc',
highlightLineColor: 'orange', highlightSpotColor: 'orange'"
cb_line = JS(paste0("function (oSettings, json) {
$('.spark:not(:has(canvas))').sparkline('html', { ", line_string, ",
chartRangeMin: ", r[1], ", chartRangeMax: ", r[2], " }); }"), collapse="")
box_string <- "type: 'box', lineColor: 'black', whiskerColor: 'black',
outlierFillColor: 'black', outlierLineColor: 'black', medianColor: 'black',
boxFillColor: 'orange', boxLineColor: 'black'"
cb_box1 = JS(paste0("function (oSettings, json) {
$('.spark:not(:has(canvas))').sparkline('html', { ", box_string," }); }"),
collapse="")

2. cb_box2 = JS(paste0("function (oSettings, json) {
$('.spark:not(:has(canvas))').sparkline('html', { ", box_string, ",
chartRangeMin: ", r[1], ", chartRangeMax: ", r[2], " }); }"), collapse="")
# @knitr sparklines
dat.p <- filter(dat, Var=="Precipitation" & Decade=="2000s" & Month=="Aug")$Val
dat.p
# @knitr sparkline_dt_prep
dat.t <- filter(dat, Var=="Temperature") %>%
group_by(Decade, Month) %>% summarise(Temperature=paste(Val, collapse =
","))
dat.ta <- dcast(dat.t, Decade ~ Month)
dat.tb <- dcast(dat.t, Month ~ Decade)
# @knitr table_DxM_line
d1 <- datatable(data.table(dat.ta), rownames=FALSE,
options=list(columnDefs=colDefs1, fnDrawCallback=cb_line))
d1$dependencies <- append(d1$dependencies,
htmlwidgets:::getDependency('sparkline'))
d1
# @knitr table_MxD_bar
d2 <- datatable(data.table(dat.tb), rownames=FALSE,
options=list(columnDefs=colDefs2, fnDrawCallback=cb_bar))
d2$dependencies <- append(d2$dependencies,
htmlwidgets:::getDependency('sparkline'))
d2
# @knitr table_MxD_box1
d3 <- datatable(data.table(dat.tb), rownames=FALSE,
options=list(columnDefs=colDefs2, fnDrawCallback=cb_box1))
d3$dependencies <- append(d3$dependencies,
htmlwidgets:::getDependency('sparkline'))
d3
# @knitr table_MxD_box2
d4 <- datatable(data.table(dat.tb), rownames=FALSE,
options=list(columnDefs=colDefs2, fnDrawCallback=cb_box2))

3. d4$dependencies <- append(d4$dependencies,
htmlwidgets:::getDependency('sparkline'))
d4
# @knitr final_prep
dat.t2 <- filter(dat, Var=="Temperature" & Month=="Aug") %>%
group_by(Location, Month, Var, Decade) %>%
summarise(Mean=round(mean(Val), 1), SD=round(sd(Val), 2), Min=min(Val),
Max=max(Val), Samples=paste(Val, collapse = ",")) %>%
mutate(Series=Samples) %>% data.table
cd <- list(list(targets=8, render=JS("function(data, type, full){ return '<span
class=sparkSamples>' + data + '</span>' }")),
list(targets=9, render=JS("function(data, type, full){ return '<span
class=sparkSeries>' + data + '</span>' }")))
cb = JS(paste0("function (oSettings, json) {
$('.sparkSeries:not(:has(canvas))').sparkline('html', { ", line_string, " });
$('.sparkSamples:not(:has(canvas))').sparkline('html', { ", box_string, " });
}"), collapse="")
# @knitr table_final
d5 <- datatable(data.table(dat.t2), rownames=FALSE, options=list(columnDefs=cd,
fnDrawCallback=cb))
d5$dependencies <- append(d5$dependencies,
htmlwidgets:::getDependency('sparkline'))
d5

4. Prepared by VOLKAN OBAN
Reference:
https://github.com/leonawicz/HtmlWidgetExamples/blob/master/code/ex_dt_sparkline.R