MantisBT - ParaView
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0007039ParaViewBugpublic2008-05-16 14:272016-08-12 09:57
Ken Moreland 
Philippe Pebay 
normalfeaturehave not tried
closedmoved 
 
 
0007039: Field statistics
Users have been asking for statistics of field data. For example, what is the minimum/maximum data and in what point/cell does it occur? In addition to viewing it, you should be able to select and manipulate it. You should be able to click on the maximum value, see where that cell is, and then plot that cell over time. You should also be able to plot the absolute maximum over time.
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Issue History
2008-05-16 14:27Ken MorelandNew Issue
2008-05-16 14:27Ken MorelandCategory3.4 => 3.6
2008-05-16 14:28Ken MorelandStatusbacklog => tabled
2008-05-16 14:28Ken MorelandAssigned To => Ken Moreland
2008-05-16 14:29Ken MorelandNote Added: 0011973
2008-05-19 14:55Ken MorelandNote Added: 0012006
2008-11-25 09:30Ken MorelandAssigned ToKen Moreland => Philippe Pebay
2008-11-25 14:13Philippe PebayNote Added: 0014185
2008-11-25 14:13Philippe PebayNote Edited: 0014185
2009-05-13 13:47Utkarsh AyachitTarget Version => 3.6
2009-08-25 11:41Ken MorelandCategory => Bug
2009-08-25 11:41Ken MorelandTarget Version3.6 => 3.6.2
2009-09-18 20:30David Thompson (old)Note Added: 0017617
2009-10-02 10:12Utkarsh AyachitTarget Version3.6.2 => 3.8
2016-08-12 09:57Kitware RobotNote Added: 0037574
2016-08-12 09:57Kitware RobotStatusexpired => closed
2016-08-12 09:57Kitware RobotResolutionopen => moved

Notes
(0011973)
Ken Moreland   
2008-05-16 14:29   
My current thought is that this could be a filter that outputs a table of data. If tables a properly implemented, a spreadsheet view should automatically be created and show the data.

The user can then select in the spreadsheet and the selection should be linked, through pedigree ids, to the originating objects. From there we can do even more powerful things with filters that take selections.
(0012006)
Ken Moreland   
2008-05-19 14:55   
John G. suggests these features as a minimum set, as these are common operations by users:

1. label both min and max
2. automatically get plot of min and max over time.
3. Add mean and/or median as options as well (much less important, but potentially useful.
4. Some way of optionally marking the min/max over all time steps would be useful (e.g. mark the max CELL which occurs at time 20 when you look at time 0 where you can tell what part it is in).
(0014185)
Philippe Pebay   
2008-11-25 14:13   
While we are at it, and in particular because John suggested point 3. above (adding mean and other statistics), why not make it a full descriptive statistics engine, that is, with standard deviation, skewness, and kurtosis?

(0017617)
David Thompson (old)   
2009-09-18 20:30   
Statistics filters are now in the ParaView trunk and there's a patch submitted for 3.6.2, but they don't directly address the use case here. The descriptive statistics filter computes the requested statistics (min, max, mean, variance, skewness, kurtosis) and assesses the data with respect to the statistics (# of deviations from the mean for each point/cell), but there's not an easy way to click on the reported min or max and see the relevant points/cells.

I also don't know of a way to plot cells from a vtkTable over time (or every cell in a table over time for that matter), but that would be required in order to plot the min/max over time with the current vtkPSciVizDescriptiveStats filter. Another option would be to copy some entries (e.g., min & max) from the output table onto the output mesh as global field data which can currently be plotted over time.
(0037574)
Kitware Robot   
2016-08-12 09:57   
Resolving issue as `moved`.

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