## CosmoMC: Warning from GetDist

Use of Healpix, camb, CLASS, cosmomc, compilers, etc.
Mario Acero
Posts: 28
Joined: November 15 2006
Contact:

### CosmoMC: Warning from GetDist

Hello,
In using getdist to make the analysis of the .tex file, it is producing the following Warning messages:

Code: Select all

 Warning&#58; sharp edge in parameter 6 - check limits6
Warning&#58; sharp edge in parameter 8 - check limits8
Warning&#58; sharp edge in parameter 18 - check limits18
Warning&#58; sharp edge in parameter 18 - check limits18
Warning&#58; sharp edge in parameter 20 - check limits20

It seems that there is not any error, but I don't understand the meaning of this warning messages.

Best,

MarioAAO

Antony Lewis
Posts: 1501
Joined: September 23 2004
Affiliation: University of Sussex
Contact:

### Re: CosmoMC: Warning from GetDist

It means your marginalized distributions are not going smoothly to zero at both ends, and the parameter does not have a fixed prior limit set. Most often this is because you have a hard prior on a parameter (e.g. w<-1), but have a missing limitsxxx setting in the getdist input file.