Adding more than one yrange on the left hand side of the plot using gnuplot

Question

Is it possible to add more then one yrange on the left hand side of the plot using gnuplot? See the figure linked below, please.

Ideally I would need yrange commands such as y3range, y4range, etc.

Using multiplot I could not get what I want.

set multiplot
set lmargin at scr 0.2
set bmargin at scr 0.1 # fix bottom margin
set grid
set y2range [0:20]
plot x, 2*x axes x1y2  # this is your actual plot

unset grid
set lmargin at scr 0.2
set bmargin at scr 0.15 # fix bottom margin
set yrange [0:20]    # set yrange to the same as y2 in the first plot
set border 0         # switch off all borders except the left   
unset xtics          # switch off the stray xtics
plot -1000 notitle   # plot something outside of the y(2)range
unset multi

Thank you for your help.

Answer 1

You have to set the yranges accordingly such that the ytics and hence the grid are nicely aligned. Add an offset to the ytics to tune the distances. Check help xtics.

Code:

### multiple axes
reset session

# common settings for all (sub-)plots
set lmargin at screen 0.15
set bmargin at screen 0.12

set xlabel "my x-title"
set xrange[0:3000]
set grid
set ytics font ",8"

myOffsetY = 0.7

set multiplot
    set ylabel "my 1st y-label" tc rgb "red" offset -2,0
    set yrange [-10:6]
    set ytics -10,2 tc rgb "red" offset 0,0
    plot 0.001*x-10 w l lc rgb "red" notitle

    set xlabel " "
    unset xtics
    unset grid
    set ylabel "my 2nd y-label" tc rgb "green" offset 2,0
    set yrange [-10.0:-2.0]
    set ytics -10, 1 tc rgb "green" offset 0,-myOffsetY
    set format y "%.1f"
    plot 0.002*x -10w l lc rgb "green" notitle

    set ylabel "my 3rd y-label" tc rgb "blue" offset -4,0
    set yrange [-60:20]
    set ytics -60, 10 tc rgb "blue" offset 0,myOffsetY
    set format y "%.0f"
    plot 0.003*x-10 w l lc rgb "blue" notitle

unset multiplot
### end of code

Result: