## Exception: parameter name not found: omeganuh2 for Planck Chains Using GetDist

Use of Healpix, camb, CLASS, cosmomc, compilers, etc.
Elimboto Yohana
Posts: 3
Joined: May 31 2018
Affiliation: TSSFL
Contact:

Hi CosmoCoffee members,

I am using GetDist to plot contours for cosmological parameters from Planck chains for base and w, wa parameters. The specific paths to the Planck data that I load are:

./COM_CosmoParams_fullGrid_R2.00/base/plikHM_TTTEEE_lowTEB_lensing/base_plikHM_TTTEEE_lowTEB_lensing_post_BAO_H070p6_JLA'

./COM_CosmoParams_fullGrid_R2.00/base_w_wa/plikHM_TTTEEE_lowTEB_BAO_H070p6_JLA/base_w_wa_plikHM_TTTEEE_lowTEB_BAO_H070p6_JLA_post_lensing'

Every time I run my code, I get this error:

But, the parameter omeganuh2 seems to be included in the chains.

Can you help on how to proceed to solve this problem?

Thank you,

Elimboto

Antony Lewis
Posts: 1364
Joined: September 23 2004
Affiliation: University of Sussex
Contact:

What code? The neutrino mass is fixed in those chains.

Elimboto Yohana
Posts: 3
Joined: May 31 2018
Affiliation: TSSFL
Contact:

Antony Lewis wrote:What code? The neutrino mass is fixed in those chains.

Hi Antony, thank you for reply.

Here is the code:

Code: Select all

#!/usr/bin/env python3

#Specify location of Planck chains
path_planck_base_w_wa_TTTEEE_lowTEB_lensing_post_BAO_H0_JLA = '/home/tssfl/Desktop/COM_CosmoParams_fullGrid_R2.00/base_w_wa/plikHM_TTTEEE_lowTEB_BAO_H070p6_JLA/base_w_wa_plikHM_TTTEEE_lowTEB_BAO_H070p6_JLA_post_lensing'

getplot = plots.getSubplotPlotter&#40;&#41;
getplot.triangle_plot&#40;&#91;samples_base_w_wa_TTTEEE_lowTEB_lensing_post_BAO_H0_JLA&#93;,
&#91;'omegabh2', 'omegach2', 'w', 'wa', 'logA', 'H0', 'ns', 'omeganuh2'&#93;,
filled=True,
legend_labels = &#91;'Samples_base_w_wa_TTTEEE_lowTEB_lensing_post_BAO_H0_JLA'&#93;&#41;

getplot.export&#40;'Samples_base_w_wa_TTTEEE_lowTEB_lensing_post_BAO_H0_JLA.png'&#41;

When I run this code, I get the error message: Exception: parameter name not found: omeganuh2

But, If I do not parse parameter omeganuh2, here is the output:

omeganuh2 is listed in the parameters file and denoted by omeganuh2* (just like H0) to indicate that it is derived, so what is wrong with what I am doing?

Antony Lewis
Posts: 1364
Joined: September 23 2004
Affiliation: University of Sussex
Contact: