How do I convert an integer to a string in gnuplot?

Question

I know how to use $ with using in examples like

plot datafile using f($1):g($2)

to plot functions of column data. But

Answer 1

Are you looking for something like:

plot for [c=1:5] datafile using (column(c)):(column(c+1))

This will do: plot datafile u 1:2, "" u 2:3, "" u 3:4, "" u 4:5, "" u 5:6