I am a novice in CosmoMC and please pardon if it is a trivial question and already answered.

I want to constrain the six parameter [math]CDM model with fsigma8 data given in table: III of https://arxiv.org/abs/1703.10538.

For that, I have written a likelihood similar to bao.f90. When I am using only the fsigma8 data with action = 2, I am getting the minimum values. But when I am using it with action = 0, it is not constraining [math], [math] and [math] well. The contour plots look blotchy even after increasing the range. The code stops with the error

Code: Select all

`CAMB error ThemoData Init: failed to find the end of recombination`

Code: Select all

```
Warning: xe at redshift zero is < 1
Check input parameters a Reionization_xe
function in the Reionization module
```

I understand it is related to CAMB. What is it that I need to take care?

I did not change any parameter value given in CosmoMC May 2020.

Thanks in advance.