plot - R plotting a dataset with NA Values -


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i'm trying plot dataset consisting of numbers , na entries in r.

v1,v2,v3  2, 4, 3 na, 5, 4 na,na,na na, 7, 3  6, 6, 9

should return same lines in plot, if had entered: 

v1,v2,v3  2, 4, 3  3, 5, 4  4, 6, 3.5  5, 7, 3  6, 6, 9

what need r plotting dataset points, connect these points straight lines, - due size of dataset - more efficient actual calculation of each interpolated value within dataset. should not happen computing interpolations (via loop or that), instead on graph.

since dataset has multiple columns , using rs matplot function visualize it, there should way add multiple na-adjusted lines (as in matpot() or lines() example). hence plot(...) problematic because overwrites current graphics device.

mydf <- data.frame(v1=c(2,na,na,na,6),v2=c(4,5,na,7,6),v3=c(3,4,na,3,9))  plot(na,xlim=c(0,nrow(mydf)+1),ylim=c(min(mydf,na.rm=true)-1,max(mydf,na.rm=true)+1)) mapply(function(x,color){     dat <- na.omit(cbind(1:length(x),x))     lines(dat[,1],dat[,2],col=color) },mydf,c("red","blue","green"))

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