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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">The programmable filter just runs the Python script you give it. Use Python to iterate over all the fields in your dataset. Augmenting the example in the email
you reference, use something like this to iterate over all the fields:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New";color:#1F497D">for field in inputs[0].PointData.keys():<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New";color:#1F497D"> data0 = inputs[0].PointData[field]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New";color:#1F497D"> data1 = inputs[1].PointData[field]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New";color:#1F497D"> output.PointData.append(data0-data1, field + '-diff')<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">-Ken<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> ParaView [mailto:paraview-bounces@paraview.org]
<b>On Behalf Of </b>John Haase<br>
<b>Sent:</b> Friday, March 24, 2017 2:11 PM<br>
<b>To:</b> ParaView <paraview@paraview.org><br>
<b>Subject:</b> [EXTERNAL] [Paraview] Difference in dataset for multiple variables<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hello Paraviewers,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I want to make sure my multivariable cyclic simulation has reached "steady state" so I am trying to match the corresponding timesteps and get the R^2 error. To take the difference between the two datasets, I was thinking of following the
method laid out here<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><a href="http://paraview.markmail.org/search/?q=difference#query:difference+page:1+mid:lc6a4ss2j5hi37ps+state:results">http://paraview.markmail.org/search/?q=difference#query:difference+page:1+mid:lc6a4ss2j5hi37ps+state:results</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">and using the ProgrammableFilter to take the difference. That works great for a single variable. However, is there a way to take the difference of all the variables in the data set? Or do I just have to have a ProgrammableFilter for each
variable?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">Thank you for the advice</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"><br clear="all">
</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#888888">Regards,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#888888"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#888888">John<o:p></o:p></span></p>
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