# Superposition effect

**URL:** https://discourse.paraview.org/t/superposition-effect/10950
**Category:** ParaView Support
**Created:** [December 8, 2022, 2:41pm UTC](https://discourse.paraview.org/t/superposition-effect/10950 "2022-12-08T14:41:26Z")
**Posts on this page:** 1
**Showing post:** 6

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### Author: ![Kenneth\_Moreland](https://discourse.paraview.org/user_avatar/discourse.paraview.org/kenneth_moreland/32/15033_2.png) [@Kenneth\_Moreland](https://discourse.paraview.org/u/Kenneth_Moreland)
#### Post date: [December 8, 2022, 3:42pm UTC](https://discourse.paraview.org/t/superposition-effect/10950/6 "2022-12-08T15:42:24Z")

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This is a shot in the dark (because I think we are all still confused about what “merge the stress tensor components” means), but if you need to combine data from two .vtk files, perhaps the `Append Attributes` filter will do what you want. See this for more discussion: [Difference between 2 Datasets](https://discourse.paraview.org/t/difference-between-2-datasets/7337)

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