Dear r-user,

 

I've wrote a small function to visualize the creation of a histogram.
Therefore I create a vector with random values and let them plot in
histograms. I better give a small example in R-Code:

 

i=0

funVec=rnorm(1000)

temp=hist(funVec,plot=FALSE)

plot(1,xlim=c(max(temp$breaks),min(temp$breaks)),

     ylim=c(0,max(temp$counts)+0.1*max(temp$counts)),col="white")

for(i in 1:1000)

 {

 hist(funVec[1:i],add=TRUE,col="white")

 Sys.sleep(1/25)

 }

 

I don't find any mistake in the example above and nevertheless there
something strange about the result. R should plot 1000 histograms with time
breaks of 1/25 seconds between the single plots. But the program visualize
not even 100 steps. I don't understand that circumstance. If I don't use the
add parameter, R visualize all 1000 steps. 

I hope somebody could help me or explain me what ist happening there. I m
looking forward to any hints or clues.

 

Greetings and thanks in advance

 

Etienne

 


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