More than two axes in Igor Pro

Left and right come free; anything beyond that is an axis you make yourself.

Function ThreeStack(WAVE a, WAVE b, WAVE c)
    DoWindow/K Stack3
    Display/N=Stack3 a

    AppendToGraph/L=middle b
    AppendToGraph/L=upper c

    ModifyGraph axisEnab(left)={0, 0.3}
    ModifyGraph axisEnab(middle)={0.35, 0.65}, freePos(middle)=0
    ModifyGraph axisEnab(upper)={0.7, 1}, freePos(upper)=0

    Label left, "A"
    Label middle, "B"
    Label upper, "C"
End

How it works

1. AppendToGraph/L=name puts a trace on a new named axis.
2. ModifyGraph freePos and axisEnab place and shrink it.
3. Three stacked plots in one graph is three axes sharing the bottom.

Keywords and builtins used here

• AppendToGraph
• Display
• DoWindow
• End
• Function
• Label
• ModifyGraph
• WAVE

The run, in numbers

Lines

15

Characters to type

339

Tokens

90

Three-star pace

85 tpm

At the three-star pace of 85 tokens a minute, this run takes about 64 seconds.

Type this snippet

Step 5 of 6 in Styling, step 10 of 19 in Graphs & presentation.

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