Lists in a string in Igor Pro

Igor's list is a delimited string, and a handful of functions treat it as a sequence.

Function ShowWaves()
    String list = WaveList("data_*", ";", "")
    Variable i, n = ItemsInList(list)

    for (i = 0; i < n; i += 1)
        String name = StringFromList(i, list)
        WAVE w = $name
        Printf "%-20s %d points\r", name, numpnts(w)
    endfor

    list = AddListItem("summary", list, ";", inf)
    Print ItemsInList(list, ";")
End

How it works

1. ItemsInList counts; StringFromList reads one item by index.
2. AddListItem and RemoveFromList return a new list.
3. WaveList and TraceNameList hand you lists in exactly this form.

Keywords and builtins used here

• AddListItem
• End
• Function
• ItemsInList
• Print
• Printf
• String
• StringFromList
• Variable
• WAVE
• WaveList
• endfor
• for
• i
• inf
• numpnts

The run, in numbers

Lines

13

Characters to type

309

Tokens

81

Three-star pace

75 tpm

At the three-star pace of 75 tokens a minute, this run takes about 65 seconds.

Type this snippet

Step 2 of 4 in Text, step 13 of 18 in Language basics.

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