betterspy

Show sparsity patterns of sparse matrices or write them to image files.

Example:

import betterspy
from scipy import sparse

A = sparse.rand(20, 20, density=0.1)

# betterspy.plot()
# set attributes on gca()
# plt.show()
# or directly

betterspy.show(A)

betterspy.write_png(
    "out.png",
    A,
    # border_width=2,
    # border_color="red",
    # colormap="viridis"
)

<img src="https://nschloe.github.io/betterspy/plain.png"> | <img src="https://nschloe.github.io/betterspy/viridis.png"> :-------------------:|:------------------:| no colormap | viridis |

There is a command-line tool that can be used to show matrix-market or Harwell-Boeing files:

betterspy msc00726.mtx [out.png]

See betterspy -h for all options.

Gallery

<img src="https://nschloe.github.io/betterspy/bp_200.mtx.png" width="70%"> | <img src="https://nschloe.github.io/betterspy/bp_600.mtx.png" width="70%"> | <img src="https://nschloe.github.io/betterspy/Chebyshev2.mtx.png" width="70%"> :---------:|:------------:|:---------------:| bp_200 | bp_600 | Chebyshev2 |

<img src="https://nschloe.github.io/betterspy/orani678.mtx.png" width="70%"> | <img src="https://nschloe.github.io/betterspy/rajat19.mtx.png" width="70%"> | <img src="https://nschloe.github.io/betterspy/rdb1250l.mtx.png" width="70%"> :---------:|:------------:|:---------------:| orani678 | rajat19 | rdb1250l |

<img src="https://nschloe.github.io/betterspy/rdb3200l.mtx.png" width="70%"> | <img src="https://nschloe.github.io/betterspy/west0989.mtx.png" width="70%"> | <img src="https://nschloe.github.io/betterspy/west1505.mtx.png" width="70%"> :---------:|:------------:|:---------------:| rdb3200l | west0989 | west1505 |

Installation

betterspy is available from the Python Package Index, so simply do

pip install betterspy

to install.

License

This software is published under the GPLv3 license.