Compute p-val permutation testing
     
    
    Usage
    compute_perm_pval(celltype_pair_oi, shuffled_df, obs_df, metric)
 
     
    
    Arguments
- celltype_pair_oi
 
string with cell type pair of interest existing in shuffled_df and obs_df
 
- shuffled_df
 
dataframe with 'source_target' and 'metric' for all iterations (permutations)
 
- obs_df
 
dataframe with 'source_target' and 'metric' (observed)
 
- metric
 
string with metric of interest, e.g. 'mean_frac'
 
 
    
    Value
    dataframe of single row with 'source_target', 'mean_obs', 'overall_mean_shuffled' and 'pval'