(X,rows,cols)
return [X[i][j] for j in cols for i in rows]
Slices a 2D list to a flat array. If you know a better approach, please correct this.
    
    Args:
    
        X [num_rows x num_cols] multi-dimensional data
        rows [list] rows to slice
        cols [list] cols to slice
    
    Example:
    
        >>> X=[[1,2,3,4],[5,6,7,8]]
        >>> # slice first two rows and first column
        >>> Commons.slice(X, range(0,2), range(0,1)) # returns [1, 5]
        >>> Commons.slice(X, range(0,1), range(0,4)) # returns [1,2,3,4]
Slices a 2D list to a flat array. If you know a better approach, please correct this.
    
    Args:
    
        X [num_rows x num_cols] multi-dimensional data
        rows [list] rows to slice
        cols [list] cols to slice
    
    Example:
    
        >>> X=[[1,2,3,4],[5,6,7,8]]
        >>> # slice first two rows and first column
        >>> Commons.slice(X, range(0,2), range(0,1)) # returns [1, 5]
        >>> Commons.slice(X, range(0,1), range(0,4)) # returns [1,2,3,4]
Slices a 2D list to a flat array . If you know a better approach please correct this . Args : X [ num_rows x num_cols ] multi - dimensional data rows [ list ] rows to slice cols [ list ] cols to slice Example : >>> X = [[ 1 2 3 4 ] [ 5 6 7 8 ]] >>> # slice first two rows and first column >>> Commons . slice ( X range ( 0 2 ) range ( 0 1 )) # returns [ 1 5 ] >>> Commons . slice ( X range ( 0 1 ) range ( 0 4 )) # returns [ 1 2 3 4 ]
def slice_2d(X,rows,cols):
    """
    
    Slices a 2D list to a flat array. If you know a better approach, please correct this.
    
    Args:
    
        X [num_rows x num_cols] multi-dimensional data
        rows [list] rows to slice
        cols [list] cols to slice
    
    Example:
    
        >>> X=[[1,2,3,4],[5,6,7,8]]
        >>> # slice first two rows and first column
        >>> Commons.slice(X, range(0,2), range(0,1)) # returns [1, 5]
        >>> Commons.slice(X, range(0,1), range(0,4)) # returns [1,2,3,4]
    """
    return [X[i][j] for j in cols for i in rows]
def slice_2d ( X , rows , cols ) : return [ X [ i ] [ j ] for j in cols for i in rows ]