Usage
    disease_impact_score(expr, control, max.iter = 10000)
 
    
    Arguments
- expr
- The expression matrix 
- control
- A vector or scalar of the index of the normal samples. 
- max.iter
- Maximal number of iterations of the augumented Lagrange
multiplier algorithm, which is used in robust PCA algorithm. 
 
    
    Value
    A vector of the disease impact score
     
    
    Examples
    # no examples
# TODO: fill the examples