.rtOrderSpectra | R Documentation |
The function '.rtOrderSpectra' orders the features in a 'Spectra' object according to the (increasing) retention time values.
.rtOrderSpectra(spectra)
spectra |
'Spectra' object |
Internal function in quality metric functions.
'Spectra' object with the features ordered according to the (increasing) retention time
Johannes Rainer
library(S4Vectors) library(Spectra) spd <- DataFrame( msLevel = c(2L, 2L, 2L), polarity = c(1L, 1L, 1L), id = c("HMDB0001847", "HMDB0000001", "HMDB0000001"), name = c("Caffeine", "1-Methylhistidine", "1-Methylhistidine")) ## Assign m/z and intensity values spd$mz <- list( c(56.0494, 69.0447, 83.0603, 109.0395, 110.0712, 111.0551, 123.0429, 138.0662, 195.0876), c(109.2, 124.2, 124.5, 170.16, 170.52), c(83.1, 96.12, 97.14, 109.14, 124.08, 125.1, 170.16)) spd$intensity <- list( c(0.459, 2.585, 2.446, 0.508, 8.968, 0.524, 0.974, 100.0, 40.994), c(3.407, 47.494, 3.094, 100.0, 13.240), c(6.685, 4.381, 3.022, 16.708, 100.0, 4.565, 40.643)) spd$rtime <- c(15.84, 9.44, 9.44) sps <- Spectra(spd) MsQuality:::.rtOrderSpectra(sps)
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