# Plot freeze selection over time

**URL:** https://discourse.paraview.org/t/plot-freeze-selection-over-time/14960
**Category:** ParaView Support
**Created:** [June 30, 2024, 8:56am UTC](https://discourse.paraview.org/t/plot-freeze-selection-over-time/14960 "2024-06-30T08:56:30Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Tang](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/t/e8c25b/32.png) [@Tang](https://discourse.paraview.org/u/Tang)
#### Post date: [June 30, 2024, 8:56am UTC](https://discourse.paraview.org/t/plot-freeze-selection-over-time/14960/1 "2024-06-30T08:56:30Z")

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Hello everyone, I want to implement the “freeze” feature of “create selection” in a script, but I’m not very familiar with script functions. It seems that the `ConvertSelection` function should be used for this, but I still can’t eliminate the errors after trying. Could you help me? Thanks in advance.  
[data.zip](https://discourse.paraview.org/uploads/short-url/cWGRhwfvu08ZuefWXIYAGLEIwRn.zip) (1.9 MB)  
[test16.py](https://discourse.paraview.org/uploads/short-url/mCEFw2yUpDsqaZ6PtMyvDcy9MO.py) (10.3 KB)