TT and other Cls change as more redshift distributions are added

lesgourg / class_public

Public repository of the Cosmic Linear Anisotropy Solving System (master for the most recent version of the standard code; GW_CLASS to include Cosmic Gravitational Wave Background anisotropies; classnet branch for acceleration with neutral networks; ExoCLASS branch for exotic energy injection; class_matter branch for FFTlog)

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TT and other Cls change as more redshift distributions are added #172

Open hoyleb opened 7 years ago

hoyleb commented 7 years ago

Dear all, I'm finding some unexpected behaviour with a new, clean install of latest github class on a mac-book pro OSX 10.11.6

When I run the following .ini files, changing only the number of dndz's I ask for, I get different TT Cls (at low els) , and e.g. dens-dens, and lens-lens and cross-corr Cls ( esp. at large els)

Perhaps this is an expected feature that I simply don't fully understand.

3_iniparams_outcls.zip

MarkusMichaelRau commented 6 years ago

I'm having the same issue. I would also like to note that for more general non-gaussian dndz's, the differences are much greater than reported here.