Load interaction Excel Matrices
     
    
    Usage
    interaction_matrix_load(mint_names = NA, filename = NA)
 
    
    Arguments
    - mint_names
- Character vector of interaction matrix names. 
- filename
- Character string of Excel file. 
 
    
    Value
    
a list object of interaction matrix objects.
     
    
    Details
    Load 2-factor interaction matrices from
Excel workbook (if they exist). This function is run from
within StressorResponseWorkbook().