Re: [Mzmine-devel] Zero values

2012-06-11 Thread Tomas Pluskal
Hi Matteo, AFAIK in statistical analysis zero means the value was determined no signal was detected, while a missing value means the value is unknown because no data is available. When analyzing mass spectrometry data in MZmine, the data is always available, therefore we export all missing valu

Re: [Mzmine-devel] Zero values

2012-06-08 Thread Castillo Sandra
Hi Matteo, Did you try the gap filling after the alignment? Best regards, Sandra From: Matteo Stocchero S-IN [mailto:[email protected]] Sent: Thursday, June 07, 2012 5:17 PM To: [email protected] Subject: [Mzmine-devel] Zero values Dear MZmine support, I am Matteo from

[Mzmine-devel] Zero values

2012-06-07 Thread Matteo Stocchero S-IN
Dear MZmine support, I am Matteo from Italy and I am focused on multivariate data analysis. I am working with data sets produced by MZmine2 and I have an important question about the zeros in the peak list. I used RANSAC aligner in order to reduce the number of zeros. However, a large number of