# Correlation Value Between Two VTK Files

**URL:** https://discourse.paraview.org/t/correlation-value-between-two-vtk-files/1196
**Category:** ParaView Support
**Created:** [January 28, 2019, 5:23pm UTC](https://discourse.paraview.org/t/correlation-value-between-two-vtk-files/1196 "2019-01-28T17:23:06Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![NGreen](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/n/aca169/32.png) [@NGreen](https://discourse.paraview.org/u/NGreen)
#### Post date: [January 28, 2019, 5:23pm UTC](https://discourse.paraview.org/t/correlation-value-between-two-vtk-files/1196/1 "2019-01-28T17:23:06Z")

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I was wondering if there is an easy way to calculate the correlation of two VTK files using this software. I have not worked with ParaView before, and am looking for the best software to accomplish this task. If this is possible I was then wondering if the VTK files need to be the exact same size for this to work. Thank you in advance for any information regarding this issue!