Data folders in Igor Pro

Igor's experiment is a tree, and data folders are how an analysis keeps its work apart.

Function AnalyzeIn(String folderName)
    DFREF saved = GetDataFolderDFR()

    NewDataFolder/O/S $folderName
    Make/O/N=100/D result = p^2

    DFREF here = GetDataFolderDFR()
    WAVE result = here:result
    Printf "%s holds %d points\r", GetDataFolder(0), numpnts(result)

    SetDataFolder saved
End

How it works

1. NewDataFolder/O makes one; SetDataFolder moves the current one.
2. A DFREF holds a folder the way a WAVE holds a wave.
3. Save and restore the current folder, or you leave the user somewhere else.

Keywords and builtins used here

• DFREF
• End
• Function
• GetDataFolder
• GetDataFolderDFR
• Make
• NewDataFolder
• Printf
• SetDataFolder
• String
• WAVE
• numpnts

The run, in numbers

Lines

12

Characters to type

278

Tokens

54

Three-star pace

80 tpm

At the three-star pace of 80 tokens a minute, this run takes about 40 seconds.

Type this snippet

Step 2 of 2 in Where data lives, step 17 of 18 in Language basics.

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