Open ricoderks opened 3 years ago
I guess this is the mass of the most abundant isotope peak, which is not the monoisotopic.
That certainly would be a bug. I think there was a discussion with Corey Broeckling a while ago. Help welcome.
Yours Steffen
I blame Android for the brevity and typos
Hi Steffen,
I'll have a look at the code. If it is in R I might be of help. If it is c++ then it gets difficult. My c++ skill are more or less non-existing.
Cheers, Rico
Hi Steffen,
Tried the whole day to figure out where the monoisotopic mass was selected. I tried to understand the c++ code, but it's to complex for me to understand where this happens. Sorry, I couldn't help.
Cheers, Rico
Hi Steffen I tried to compare the results with the output from a commercial software, Thermo Freestyle
The $exactmass-value is not correct, however, the $isotopes m/z values are more correct: the monoisotopic peak is fine, but the first isotope has a larger error. Also the isotope distribution seems to diffeer between the Thermo output and the Rdisop-output. Are there any updates on this issue? Thanks Cyrus
getMolecule("C89H166O17P2", maxisotopes = 4)$isotopes [[1]] [,1] [,2] [,3] [,4] [1,] 1569.1600285 1570.1634601 1571.1667309 1.572170e+03 [2,] 0.3599619 0.3676175 0.1980032 7.441743e-02
Hi, I am afraid there is no update. There was a previous discussion in #8 and I am considering to end-of-life Rdisop, see #23 Yours, Steffen.
Hi,
I using
getMolecule()
to calculate the exact masses of lipids and now I noticed that it sometimes proceduces the wrong mass.Example:
The first one is correct, but the last one should be 1569.1600 (from LipidMaps.org)
The complete output is:
In the isotopes part it shows the correct mass!
Can you help me with this? I don't understand why this is happening.
Cheers, Rico