Making a graph in Igor Pro

Display opens a window on a wave; everything after that names the window.

Function ShowTrace(WAVE y, WAVE x)
    DoWindow/K TraceGraph
    Display/N=TraceGraph/W=(50, 50, 550, 400) y vs x

    AppendToGraph/R y

    String traces = TraceNameList("TraceGraph", ";", 1)
    Printf "%d traces on %s\r", ItemsInList(traces), WinName(0, 1)
End

How it works

1. Display y vs x plots one against the other; without vs it uses scaling.
2. /N= names the window so later commands can find it again.
3. DoWindow/K closes an old one first, which makes a script re-runnable.

Keywords and builtins used here

• AppendToGraph
• Display
• DoWindow
• End
• Function
• ItemsInList
• Printf
• String
• TraceNameList
• WAVE
• WinName

The run, in numbers

Lines

9

Characters to type

244

Tokens

59

Three-star pace

80 tpm

At the three-star pace of 80 tokens a minute, this run takes about 44 seconds.

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Step 1 of 5 in Making a graph, step 1 of 19 in Graphs & presentation.

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