Accessing fetch routines using GDIF

asked 2020-09-21 11:19:12 -0500

NLacouve
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Hello,

I'm new--sorry if this has been asked before (initial search yielded nothing).

I'm using the API "GDIF" to compare the model differences between a working case and another .sav case. The API guide says you can access the results "via the internally accessible fetch routines DIFTXT, DIFBUS, DIFBRN, DIF3WN, DIF2DC, DIFMDC and DIFFCT."

How do you call these fetch routines using psspy? I've tried: psspy.DIFBUS() and psspy.fetch('DIFBUS').

Both produce errors saying that there is no module named 'DIFBUS' or 'fetch.' I'm sure this is easy, just can't find it documented anywhere. Please help!

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From the API Manual 1.85 GDIF entry: Usage is: call to GDIFAPI with APIOPT = 0; multiple calls to fetch routines; optionally, repeat of above steps for different Saved Case and/or subsystem; final call to GDIFAPI with APIOPT = 1. Step 2 ("multiple calls to fetch routines") is the subject of my Q.

NLacouve ( 2020-09-21 16:08:25 -0500 )edit

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Thanks, I think your recommendation using DIFF might offer a useable workaround to get lists of Branches/BUs status differences. Though I'd much prefer programmatically to access the memory directly in the way that these mysterious "fetch routines" supposedly offer.

NLacouve ( 2020-09-21 16:04:43 -0500 )edit

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Accessing fetch routines using GDIF

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