Normally the xrange and yrange are adjusted to fit the largest and smallest value in the datafile, when plotting according to
plot "my_file.dat" u 1:2
Suppose I want to apply a cutoff to the y-values, so that I only include the points whose y-value is larger than, say 1. If I do
plot "my_file.dat" u 1:($2>1?$2:NaN)
I indeed select only those points. The problem, however, is that the xrange is still adjusted to the range of column 1 of the entire datafile, rather than to only those points which are actually plotted. How can I fix this? My gnuplot version is 5.2.