## User: garfield320

garfield32020
Reputation:
20
Status:
New User
Location:
Last seen:
3 months, 2 weeks ago
Joined:
11 months ago
Email:
g**********@nate.com

#### Posts by garfield320

<prev • 6 results • page 1 of 1 • next >
0
answers
127
views
0
answers
... I'm using 64bit R in Windows 10, and my current memory.limit() is 16287. I'm working with mass spectra files (mzXML), I've been calling individual files one at a time using the line below, which increases my memory.size() to 7738.28. Then I filter out noise using basic R functions, and plot t ...
written 3 months ago by garfield32020
1
answer
97
views
1
answers
... Yes that was the problem, which(round(precursorMz(rawdata),4)==808.5253) gave me the index I wanted, thanks! ...
written 5 months ago by garfield32020
1
answer
97
views
1
answers
... Yes that was the problem, which(round(precursorMz(rawdata),4)==808.5253) gave me the index I wanted, thanks! ...
written 5 months ago by garfield32020
1
answer
97
views
1
answer
... Hi, I'm having trouble with extracting individual MS spectrum from my metadata based on precursor ion m/z. rawdata <- readMSData("file.mzXML", msLevel = 2, mode = "onDisk") I'm aware that I can assess individual MS spectrum objects by using index, like rawdata[[1]] . But I was tryin ...
written 5 months ago by garfield32020 • updated 5 months ago by Laurent Gatto1.2k
1
answer
227
views
1
answers
... I initially asked this question because I don't have any sequence information that can be matched to the spectrum, and the code you put as an example (plot(sp, s, main = s)) seemed like it specifically required a sequence-like object for it to work. However, your getting the spectrum into a data fra ...
written 11 months ago by garfield32020
1
answer
227
views
1
answer
... Hi, I'm new to MSnbase package and am trying to plot MS2 spectra with each peaks annotated with their m/z values. I followed the examples from the MSnbase document as below. rawdata <- readMSData("filename", msLevel = 2) sp <- rawdata[which.max(peaksCount(rawdata))] plot(sp, full = TRUE) ...
written 11 months ago by garfield32020 • updated 11 months ago by Laurent Gatto1.2k

#### Latest awards to garfield320

No awards yet. Soon to come :-)

Content
Help
Access

Use of this site constitutes acceptance of our User Agreement and Privacy Policy.
Powered by Biostar version 16.09
Traffic: 219 users visited in the last hour