def initialize_weights_nn(data, means, lognorm=True):
<EOL>genes, cells = data.shape<EOL>k = means.shape[<NUM_LIT:1>]<EOL>if lognorm:<EOL><INDENT>data = log1p(cell_normalize(data))<EOL><DEDENT>for i in range(cells):<EOL><INDENT>for j in range(k):<EOL><INDENT>pass<EOL><DEDENT><DEDENT>
Initializes the weights with a nearest-neighbor approach using the means.