[ncl-talk] help replicating warning in v 6.4.0

[Will Hobbs]

Hi Mary (and anyone else really)

I get the following warning message repeated many times over for a script I’m running, that plots an xy plot (gsn_csm_xy()) with aa 2-d y array:

warning:VarVarWrite: rhs has no dimension name or coordinate variable, deleting name of lhs dimension number (0) and destroying coordinate var,  use "(/../)" if this is not desired outcome
warning:["Execute.c":8640]:Execute: Error occurred at or near line 206 in file /usr/local/ncl-6.4.0/lib/ncarg/nclscripts/csm/gsn_csm.ncl

I do NOT get the same message when I run the same script/data with v 6.3.0. For both versions, the plot comes out exactly as I expect, but the warning message is a bit irritating.

The error is related to a function in gsn_csm.ncl called ref_line_interp(), which the header for the function states was updated for v 6.4.0. I am trying to replicate the error with a simple test case (not the script with multiple input files that I found it in!) but can’t replicate it.

I ‘think’ this has something to do with multiple xy lines where there is a ref line, but some guidance on this would be valued.

Hopefully this can be resolved by adding (/../) to the appropriate line, but I don’t want to start messing with gsn_csm.ncl!

Will


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