[Je...] Posted June 24, 2021 Share Posted June 24, 2021 Hi GOM Team, I'd like to edit a cell in the table, in order to calculate statistical parameters for a specific stage range. For any project, after the reference image is obtained I capture 10 stages to evaluate measurement noise for each parameter. I then capture further stages to measure deformation etc. In the table I would like to display the standard deviation for Stage 2 to Stage 11 only. I have tried the function sigma(result_dimension.measured_value, index='stages'). However, this calculates the standard deviation for all the stages. Is there a different expression that can be used instead of index='stages' to select a certain stage range? Many thanks, Jesse Link to comment Share on other sites More sharing options...
[Iv...] Posted June 28, 2021 Share Posted June 28, 2021 Hi Jesse, please check the following FAQ article https://connect.gom.com/x/la3VAg. This may solve your question. Greetings, Ivan Link to comment Share on other sites More sharing options...
[Je...] Posted July 19, 2021 Author Share Posted July 19, 2021 Hi Ivan, Thank you for your suggestion. I've followed the steps in the link, but there is a problem at Workflow (Step 4). The expression does not accept the term "Range", and only accepts " 'stages' " (see screenshot 'Workflow_step4.png', compared to 'Workflow_step4_alt.png'). Do you know the reason for this? Many thanks, Jesse Link to comment Share on other sites More sharing options...
[Iv...] Posted July 19, 2021 Share Posted July 19, 2021 Hi Jesse, maybe your Stange Range is wrong. Can you create a new range. Just for 5-10 stages just to check if it's possible. Link to comment Share on other sites More sharing options...
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