_cosmomc_plotting

This repo contains the code to make contour plots from CosmoMC.

I'm collecting a set of scripts for plots out of CosmOMC, for example this plot here.

1. Usage

This should be syzygy friendly. There are two options to use this repo.

1. On your local machine, provided you have installed a python interpreter with the PyPI package installer.
2. On syzygy.

1.1 Running on local

On your local machine first clone the repo,

git clone https://github.com/sfu-cosmo/_cosmomc_plotting.git

Then

cd _cosmomc_plotting

pip install -r requirements.txt

Then you, if you have jupyter notebook you can use the example_notebook.ipynb, or from a Python console

import sfu_cosmo_plots.contour_2D as splots

# root_dir is the directory where the data is stored
root_dir = './example_data/'

# root_file is a list of files with the root of the dataset analyzed
root_file = ["MG_2_DE0_mnu_DES_std_2D_sigma0m1_mu0m1", "MG_2_DE2_mnu_DES_std_2D_sigma0m1_mu0m1"]

# output image name (without .pdf or .png)
out_root = 'test_plot'

# labels for the daasets (length has to match that of root_file)
labels = [r'$\Lambda$CDM', r'$(w_0, w_a)$']

splots.contour_2D_plot(root_dir=root_dir, 
                       file_root=root_file, 
                       out_root=out_root, 
                       x_label=r'$\mu_0 - 1$',
                       y_label=r'$\Sigma_0 -1$',
                       labels=labels, 
                       n_datasets=2, 
                       x_lim=(-1,1), 
                       y_lim=(-0.3,0.3), 
                       use_latex_font=True, 
                       hlines=None, 
                       vlines=None,
                       legend_loc='upper right', 
                       figsize=(8,6), 
                       alpha=0.65)

1.2 Running on SYGYZY

Log in on syzygy with SFU credentials.

Then press New -> Terminal and you will be prompted to a terminal window. From there, clone the repo:

git clone https://github.com/sfu-cosmo/_cosmomc_plotting.git

Then on the previous file explorer window, you'll see appearing the directory _cosmomc_plotting. Click on it.

You'll see a notebook icon, example_notebook.ipynb, click on it and you will run the Jupyter notebook for the example_notebook.

Run each cell with SHIFT+ENTER.