# Create and store dictionaries

`create_and_store_dictionaries.Rd`

We require a few bookkeeping files (that we call "dictionaries") for the gRNA and gene precomputation steps. This file creates those dictionaries and stores them in the appropriate locations on disk.

    create_and_store_dictionaries(
      gene_gRNA_group_pairs,
      gene_precomp_dir,
      gRNA_precomp_dir,
      results_dir,
      pod_sizes
    )

## Arguments

gene_gRNA_group_pairs

  a data frame specifying the gene-gRNA group pairs to test for association; the data frame should contain columns named `gene_id` and `gRNA_group`.

gene_precomp_dir

  the directory in which to store the gene precomputations

gRNA_precomp_dir

  the directory in which to store the gRNA precomputations

results_dir

  the directory in which to store the results

pod_sizes

  an integer vector with three named elements: gRNA, gene, and pair. These elements give the sizes of the respective "pods."

## Value

an integer vector containing the number of pods in the gene, gRNA, and pairs dictionaries.