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GetDist - Creating/Plotting a new parameter from existing parameters/chains via SimpleMC

Posted: August 12 2022
by Arman Çam
I am currently using SimpleMC (https://github.com/ja-vazquez/SimpleMC) to make data analysis. I have managed to produce plots/chains for a given model. Let us say this model has 2 parameters on top of the LCDM model parameters. Let us call these parameters, "x" and "y". One of these parameters will be free and determined by the SimpleMC (let it be "x"). The other one (let it be "y") will be fixed (pre-determined or given).

Is there way to code getdist (https://getdist.readthedocs.io/en/latest/gui.html?highlight=new%20parameter#getdist-gui), in such a way that it will plot a new parameter "z", which depends on "x" and "y" ?

Or what tools I can use to make such plots ?

I am really new to this subject (just a MSc student) so I really need to find a way to do this.

Re: GetDist - Creating/Plotting a new parameter from existing parameters/chains via SimpleMC

Posted: August 14 2022
by Antony Lewis
The example notebooks as examples of how to define plot new derived parameters

https://getdist.readthedocs.io/en/latest/plot_gallery.html

Re: GetDist - Creating/Plotting a new parameter from existing parameters/chains via SimpleMC

Posted: August 15 2022
by Arman Çam
Sadly, I have discovered that page after I have posted the question. The examples covers almost everything about getdist, and I have managed to add new parameters by following them.

Thanks for your answer and creating a such a nice program,
Arman