|View source on GitHub|
Converts raw phred quality scores into base-calling error probabilities.
tfio.genome.phred_sequences_to_probability( phred_qualities )
Used in the notebooks
|Used in the tutorials|
For each ASCII encoded phred quality score (X), the probability that there was an error calling that base is computed by:
P = 10 ^ (-(X - 33) / 10)
This is assuming an "ASCII base" of 33.
The input is a tf.string tensor of ASCII encoded phred qualities, one string per DNA sequence, with each character representing the quality of a nucelotide.
phred_qualities = [["BB<"], ["BBBB"]]
||A tf.string tensor where each string represents the phred quality of a DNA sequence. Each character in the string is the ASCII representation of the phred quality number.|
||The quality scores for each base in each sequence provided.|