plot - Plotting of very large data sets in R -


how can plot large data set in r?

i'd use boxplot, or violin plot, or similar. data cannot fit in memory. can incrementally read in , calculate summaries needed make these plots? if how?

in supplement comment dmitri answer, function calculate quantiles using ff big-data handling package:

ffquantile<-function(ffv,qs=c(0,0.25,0.5,0.75,1),...){  stopifnot(all(qs<=1 & qs>=0))  ffsort(ffv,...)->ffvs  j<-(qs*(length(ffv)-1))+1  jf<-floor(j);ceiling(j)->jc  rowsums(matrix(ffvs[c(jf,jc)],length(qs),2))/2 }

this exact algorithm, uses sorting -- , may take lot of time.


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