set term postscript port enh mono
set out "train.plot"
set out "train.ps" 
set size 1,0.6
set title "Training set" font "Times Roman,16" 
set xrange [-0.6:0.6]
set yrange [-0.6:0.6]
set xlab "Database values, normalised" font "Times Roman,16" 
set ylab "Predicted values, normalised" font "Times Roman,16" 
plot "_OT_TRAIN" using 1:2:3 title "" with yerr, x title ""
set out "test.plot"
set out "test.ps" 
set title "Testing set" font "Times Roman,16" 
plot "_OT_TEST" using 1:2:3 title "" with yerr, x title ""
