# IC50 values in PRISM Repurposing 19Q4: Raw or Logarithmic?

**URL:** https://forum.depmap.org/t/ic50-values-in-prism-repurposing-19q4-raw-or-logarithmic/3766
**Category:** Q&A
**Tags:** data
**Created:** [November 17, 2024, 2:05am UTC](https://forum.depmap.org/t/ic50-values-in-prism-repurposing-19q4-raw-or-logarithmic/3766 "2024-11-17T02:05:38Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Uji](https://avatars.discourse-cdn.com/v4/letter/u/73ab20/32.png) [@Uji](https://forum.depmap.org/u/Uji)
#### Post date: [November 17, 2024, 2:05am UTC](https://forum.depmap.org/t/ic50-values-in-prism-repurposing-19q4-raw-or-logarithmic/3766/1 "2024-11-17T02:05:38Z")

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Hello! I am interested in the IC50 values in the `secondary-screen-dose-response-curve-parameters.csv` file from PRISM Repurposing 19Q4. Could you clarify whether these IC50 values are represented in natural logarithm format or shown as raw values? Thank you!