Pseudo-Cl measurement

This module measures the tomographic 3x2pt Pseudo-Cl power spectra from mock shear catalogues.

Following the creation of mock shear catalogues using run_cat_sim.sh in SWEPT.catalogue_sim, we can measure the 3x2pt Pseudo-Cl power spectra from the mock catallogues for a given tomographic binning configuration using run_3x2pt_tomo_measurement.sh in this pcl_measurement package.

Explicitly, we will first need to set the parameters of the measurement in the set_ variables_3x2pt_measurement.ini config file before executing code for power spectrum measurement. A description of these parameters to specify is included in the header/comments of set_ variables_3x2pt_measurement.ini.

Before running the Pseudo-Cl measurement, we then need to set the path to the parameter config file:

• In run_3x2pt_tomo_measurement.sh, set PIPELINE_VARIABLES_PATH to the location of the config file on disk, i.e. PIPELINE_VARIABLES_PATH="/local-path-to/SWEPT/pcl_measurement/set_variables_3x2pt_measurement.ini"

Then to execute the tomographic Pseudo-Cl measurement, run run_3x2pt_tomo_measurement.sh in bash. The code will measure the Pseudo-Cl power spectra, binned into angular bandpowers, from the simulated data/mock shear catalogues, and save the measured spectra on disk. Based on the simulation settings and fiducial cosmology (as specified in set_ variables_3x2pt_measurement.ini), the code will also generate a predicted/theoretical signal to fit to the measured simulated data. The predicted signal and measured signal will be saved in txt format in a location specified in the set_ variables_3x2pt_measurement.ini config file. Finally, the code will also create a numerical covariance matrix from the measured 3x2pt PCl data, which can be used for cosmological inference analyses (e.g in SWEPT/inference_analysis/)

• av_cls module
  • av_cls_config()
  • calc_av_cls()
  • calc_av_nz()
  • calc_stdem_cls()
  • main()
• conv_bps module
  • conv_1x2pt_bps()
  • conv_3x2pt_bps()
  • main()
  • mysplit()
• cov_fromsim module
  • main()
  • mysplit()
  • open_spectrum()
• create_nz_boundaries module
  • create_zbin_boundaries()
  • main()
  • nz_fromsim_config()
• measure_cat_3x2pt_pcls module
  • execute_pcl_measurement()
  • maps_from_cats()
  • measure_00_pcls()
  • measure_02_pcls()
  • measure_22_pcls()
  • measure_pcls_config()
• measure_cat_bps module
  • calc_stdem_bps()
  • cl_to_bp()
  • create_null_spectras()
  • main()
  • measure_bps_config()
  • measured_cls_to_obs_cls()
  • pad_cls()
  • process_00_pcls()
  • process_02_pcls()
  • process_22_pcls()
  • setup_theory_cls()
• run_3x2pt_tomo_measurement bash script
• set_variables_3x2pt_measurement config setup