Visual predictive checks for binary matrices

[pawel-czyz]

We would like to have several visual predictive checks, which can be used for prior and posterior predictive checks.

They should be generic, assuming only the access to matrices $\text{patients}\times \text{genes}$.

• Histogram of number of mutations per patient.
• Mutation frequencies: how often mutations appear.
• Samples visualisation: visualise binary matrices.
  • Option to sort patients by number of mutations and mutations by frequency.
• Cooccurrences visualisation: matrix $\text{genes}\times \text{genes}$ with number of patients in which given two mutations occurred.
  • Visualise several matrices.
  • Have an option to visualise only selected genes in the provided order. (I.e., we may want to consider $10\times 10$ matrices, rather than $200\times 200$.