ftmsRanalysis: An R package for exploratory data analysis and interactive visualization of FT-MS data
Fig 1
(A) Log2-transformed peak intensity profiles for each sample colored by group. (B) Number of peaks observed in each sample colored by group. (C) Histogram of all observed masses, with masses colored in blue representing those that would be retained after application of a mass_filter(). (D) Barchart corresponding to the minimum number of samples for which a peak was observed, with the height of the bar giving the number of peaks for which this is true for 1 to 20 samples. The highlighted bar gives the number of peaks remaining if the molecule_filter() requiring a peak to be observed in two or more samples is applied.