gnuplot conditional plotting: plot col A:col B if col C == x -


how can in gnuplot:

plot "test.csv" using 1:2 if value_in_column_3 == 80.0

it should select rows column 3 == 80.0 , ignore other rows (it should not plot 0 other rows, ignore them)

thanks in advance.

consider following dataset (1.dat),

1 0.8 0 2 0.6 0 3 0.9 1 4 1.1 0 5 0.7 0 6 0.6 1

where want plot first 2 columns when third 1 equals zero. can try this:

plot '1.dat' using 1:($3==0?$2:1/0)

(credit markjoe on gnuplot mailing-list.)


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