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This returns a character vector which shows the top n lines of a file.
peek(x, n = 5)
a filename
the number of lines to return
if (FALSE) { filename <- tempfile() x<-matrix(round(rnorm(10^4),2),1000,10) colnames(x)=letters[1:10] write.csv(x,file=filename,row.names=FALSE) peek(filename) }
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