diagnostic_iter_thres:, :]
chain_array.vals['accepted'] = chain_array.vals['accepted'][
    diagnostic_iter_thres:]

# %% Plot traces of simulated chain

for i in range(model.num_params()):
    ps.trace(chain_array.get_param(i),
             title=r'Traceplot of $\theta_{{{}}}$'.format(i + 1),
             xlabel='Iteration',
             ylabel='Parameter value')

# %% Plot running means of simulated chain

for i in range(model.num_params()):
    ps.running_mean(
        chain_array.get_param(i),
        title=r'Running mean plot of parameter $\theta_{{{}}}$'.format(i + 1),
        xlabel='Iteration',
        ylabel='Running mean')

# %% Plot histograms of marginals of simulated chain

for i in range(model.num_params()):
    ps.hist(chain_array.get_param(i),
            bins=30,
            density=True,
            title=r'Histogram of parameter $\theta_{{{}}}$'.format(i + 1),
            xlabel='Parameter value',
            ylabel='Parameter relative frequency')
예제 #2
0
# %% Load packages

from numpy import genfromtxt

import kanga.plots as ps

# %% Read chains

chains = genfromtxt('chain01.csv', delimiter=',')

num_iters, num_pars = chains.shape

# %% Histogram of a single chain with default hist input arguments

ps.hist(chains[:, 0])

# %% Histogram of a single chain with relative frequencies

ps.hist(chains[:, 0], density=True)

# %% Histogram of a single chain with some non-default hist input arguments

ps.hist(chains[:, 0],
        bins=25,
        xrange=[-10, 10],
        linewidth=2,
        density=True,
        edgecolor='black',
        title=r'Histogram of parameter $\theta_{{{}}}$'.format(1),
        xlabel='Parameter value',