Convert carbon markers RT in minutes to match library spectral library #727
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
The documentation indicates the carbon marker file must be in minutes: https://ccms-ucsd.github.io/GNPSDocumentation/gc-ms-library-molecular-network/ But the retention index calculation requires retention time in seconds.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Fix the RT units
The documentation indicates the carbon marker file must be in minutes:
See https://ccms-ucsd.github.io/GNPSDocumentation/gc-ms-library-molecular-network/
But the retention index calculation requires retention time in seconds.
Correct the Kovatz retention index formula from
Original_Annotation_KI_calculated = 100.0*(n+(N-n)*((rt-tr_n))/(tr_N -tr_n))to
Original_Annotation_KI_calculated = 100.0*(n+(N-n)*((math.log(rt)-math.log(tr_n))/(math.log(tr_N) - math.log(tr_n))))