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Update 3.12.20240221 #298
Update 3.12.20240221 #298
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erinyoung
commented
Feb 21, 2024
- adds bbnorm option (set params.bbnorm = true as false is the default)
- updates freyja to 1.4.9-2024-02-20
- updates nextclade to 3.2.1
- adds fixed file for pango-collapse
- updates pangolin to 4.3.1-pdata-1.25.1
- sets ACI and IGV-reports to false by default
When comparing with and without bbnorm:
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And the final summary file
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Notably, normalization should not be used on wastewater or mixed samples. In general, bbnorm appears to slightly increase the number of "N"s in the sequence (14 -> 111 for 3540826), which reduces the number of variants observed (137 -> 135 for 3540826). It does not seem to impact Freyja or Pangolin overall results, but there may be key variants that end up missing. It DOES speed up runtime. By... a lot for samples with a lot of reads. These three samples without normalization : 1 h 44 m 5 s |