Nothing
slider.stem.leaf<-function(x,main=main){
main<-if(missing(main)) deparse(substitute(x)) else main
slider(obj.name="main",
obj.value=paste("stem and leaf of",main))
slider(obj.name="rule.line",obj.value="Dixon")
repl<-function(...){
rule.line<-slider(obj.name="rule.line")
main<-c(slider(obj.name="main"), paste("rule:", rule.line))
cex<-slider(no=1); m<-slider(no=2)
res<-if(m>0) stem.leaf(x,m=m,rule.line=rule.line) else
stem.leaf(x,rule.line=rule.line)
stem<-rev(res$stem); stem <- paste(rev(res$depth), stem, rev(res$leaves))
# x.max<-max(nchar(res$stem)); y.max<-length(res$stem)
x.max<-max(nchar(stem)); y.max<-length(stem) #140922
opar<-par(mai=c(0.5,0.2,0.5,0),oma=c(0,0,0,0), omi=c(0,0,0,0))
plot(0,type="n",xlim=c(1,x.max),
ylim=c(-1.5,y.max+2),ann=FALSE,axes=FALSE)
text(1,-2,paste(res$info,collapse=","),cex=cex,adj=0,xpd=NA)
if(!is.null(res$upper)){
text(1, -0.5,paste(res$upp,collapse=","),cex=cex,adj=0,xpd=NA)
}
if(!is.null(res$lower))
text(1,y.max+1.5,paste(res$low,collapse=","),cex=cex,adj=0,xpd=NA)
title(main,cex.main=cex)
for(i in 1:y.max){
n<-nchar(h<-stem[i]); h<-substring(h,1:n,1:n)
text(1:n,i,h,cex=cex)
}
par(opar)
} # end of repl
b1<-function(...){
slider(obj.name="rule.line",obj.value="Dixon")
repl(); print(slider(obj.name="rule.line"))
}
b2<-function(...){
slider(obj.name="rule.line",obj.value="Velleman")
repl(); print(slider(obj.name="rule.line"))
}
b3<-function(...){
slider(obj.name="rule.line",obj.value="Sturges")
repl(); print(slider(obj.name="rule.line"))
}
sp<-function(...){
din<-par()$din
filename<-tkgetSaveFile(filetypes="{{Paper Files} {.ps|.jpg}}",
title="name of ps-/jpg-file?", initialdir=getwd(),
defaultextension=".ps", initialfile="stem-and-leaf")
filename<-sub("\\.ps$","",sub("\\.jpg$","",filename))
filename<-paste(filename,".ps",sep="")
dev.copy(postscript,filename,width=din[1],height=din[2],
horizontal=FALSE); dev.off()
filename<-sub(".ps",".jpg",filename)
dev.copy(jpeg,filename,units="in",res=95,width=din[1],height=din[2])
dev.off()
}
nt <- slider(repl, # 140925
c("character size","rows per unit, 0=by rule"),
c(0.5,0),c(5,10),c(.1,1),c(1,0),
c(b1,b2,b3,sp),c("Dixon rule","Velleman rule","Sturges rule",
"save plot")
)
tkwm.minsize(nt, "450", "110") # set width, height to prevent to small sizes
repl()
"choose layout by control widget"
} # slider.stem.leaf(c(co2,100,1000))
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