Hello,
I have covariance matrices and markov chains coming from the SCP (Supernova Cosmology Project) and I would like to plot all these data
in the particular diagram Omega_Lambda vs Omega_m or w vs Omega_m.
For example, I would like to get this kind of figures :
and
It doesn't matter if this kind of scripts used are coded in Python, IDL or Matlab.
Any suggestion/help is welcome.
Regards
Script to plot particular diagram Omega_Lambda vs Omega_m or w vs Omega_m

 Posts: 65
 Joined: May 18 2019
 Affiliation: IRAP
 Contact:

 Posts: 65
 Joined: May 18 2019
 Affiliation: IRAP
 Contact:
Re: Script to plot particular diagram Omega_Lambda vs Omega_m or w vs Omega_m
Hi,
I managed to get the covariance matrice available on : http://supernova.lbl.gov/Union/figures/SCPUnion2.1_covmat_nosys.txt
from the SCP (SuperNova Cosmology Project) : http://supernova.lbl.gov/Union/
Once downloaded, I computed the associated Fisher matrix. But I realize that the size of the matrix is 307x307.
I don't know how to exploit this such big and only one covariance/Fisher matrix.
On the figures above, there are 3 probes (CMB, SNIa and BAO) and in grey I guess the cross of the 3 previous cited probes.
Anyone could have an idea about how to handling this large matrix : maybe the authors have made a synthesis of the 3 probes + crosscorrelation in a unique matrix. If this is the case, how to breakdown this only one matrix to plot individually each probe ?
Regards
I managed to get the covariance matrice available on : http://supernova.lbl.gov/Union/figures/SCPUnion2.1_covmat_nosys.txt
from the SCP (SuperNova Cosmology Project) : http://supernova.lbl.gov/Union/
Once downloaded, I computed the associated Fisher matrix. But I realize that the size of the matrix is 307x307.
I don't know how to exploit this such big and only one covariance/Fisher matrix.
On the figures above, there are 3 probes (CMB, SNIa and BAO) and in grey I guess the cross of the 3 previous cited probes.
Anyone could have an idea about how to handling this large matrix : maybe the authors have made a synthesis of the 3 probes + crosscorrelation in a unique matrix. If this is the case, how to breakdown this only one matrix to plot individually each probe ?
Regards