pydiodon.plot_correlation_matrix

pydiodon.plot_correlation_matrix(C, cmap='ocean', x11=True, plotfile=None, fmt='png')[source]

Plots a heatmap of the correlation matrix

Parameters
Ca 2D p x p numpy array

The correlation matrix to be plotted

cmapa string
the matplotlib colormap to use
default value is “ocean”
x11boolean
whether to display the plot on the screen
default value is True
plotfilestring
the name of the file where to save the plot
default value is None (plot not saved)
fmta string
the format of the file where the plot is saved
possible values are png, eps, pdf.
Returns

Notes

For knowing all possible colormaps, see https://matplotlib.org/stable/tutorials/colors/colormaps.html

Example

>>> import pydiodon as dio
>>> A, rn, cn = dio.load_dataset("diatoms_sweden")
>>> C = dio.get_correlation_matrix(A)
>>> dio.plot_correlation_matrix(C)

af, 22.10.27, revised 23.01.19