hyperSpec (version 0.98-20110927)

barbiturates: Barbiturates Spectra from...

Description

Barbiturates Spectra from .spc example files A time series of mass spectra in a list of hyperSpec objects.

References

The raw data is available at http://hyperspec.r-forge.r-project.org/fileio.zip

Examples

barbiturates [1:3]
length (barbiturates)

barb <- collapse (barbiturates)
barb <- orderwl (barb)

plot (barb [1:3], lines.args = list (type = "h"),
col = matlab.dark.palette (3), stacked = TRUE,
stacked.args = list (add.factor = .2))

if (require (latticeExtra)){
plot (log (barb), "mat", panel = panel.levelplot.points, cex = 0.3,
col = "#00000000", col.regions = matlab.palette (20))
}

plotc (apply (barb [,, 42.9~43.2], 1, sum, na.rm = TRUE), spc ~ z,
panel = panel.lines, ylab = expression (I[m/z == 43] / "a.u."))