Read PWM object
Read and log transform Position Weight Matrices (PWMs) from file. Each position weight matrix represents a Transcription Factor motif that is being searched for. Files may contain one or more motifs. Only MEME Text formated files are supported. Look in the examples below to find an example PWM file.
Full Path to file of MEME Text format
Matrix object containing the Position Weight Matrix read from the file. If the file contains more than one PWM, a list of Matrix objects are returned, one for each PWM. The returned PWMs are log transformed, so that entry [i,j] of the matrix represents the log probability of observing the base from column j in the i'th position of a transcription factor binding site.
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