printing - Can you unprint a line in R? -


i writing data processing stuff , wanted have concise progress status printing fraction updates on time on single line in console.

to done wanted have 

print(initiating data processing...) for(sample in 1:length(data)){    print(paste(sample,length(data),sep="/"))    process(data[[sample]])    #unprint bottom line in console ... !!! ... !!!.. ? }

keeping screen clean , not. don't quite know how it. know there r text progress bar utilities sake i'm looking little more control.

thanks!

i think best bet r text progress bar does, "\r return left margin", seen in file. you'll have use cat instead of print because print ends newline.

cat("initiating data processing...\n") for(sample in 1:length(data)){    cat(sample, length(data), sep="/")    process(data[[sample]])    cat("\r") } cat("\n")

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