Dear All,

I am having trouble with P value conversion for my data. I tried following [this post][1] but could not understand how I can get the P value out of LogP value or -log10 (p-value). Please share your experience I can get P value out of the data in either R or excel.

```
rsid         CHR  LOGPVALUE
rs3243810    1    3.835343448
rs3287090    1    3.835343448
rs3283061    1    2.225202326
rs3393481    1    2.225202326
```

Regards  
Devender

  [1]: https://www.biostars.org/p/358046/
Hi, 

To obtain the *p*-value from the **`-log10(p-value)`** you can try (assuming that you are working from **R**, and the example data that you presented is called `data`): 

    data$pvalue <- 10**-(data$LOGPVALUE)

You can apply the formula on excel too: https://stackoverflow.com/questions/53913175/how-to-do-an-inverse-log-transformation-in-r

I hope this helps, 

António