Don't use fix "cex" for points (matched peaks) in .plotSingleSpectrum

[sgibb]

cf. title; extracted from #129

CC: @yafeng

[sgibb]

There are a bunch of arguments now:

• legend.cex
• fragments.cex
• peaks.cex
• peaks.pch
• peaks.lwd

All work as described in ?par or ?plot.Spectrum.Spectrum.

Not the prettiest example but it shows the new functionality:

plot(msexp[[1]], msexp[[2]], 
     sequences=c("VESITARHGEVLQLRPK", "IDGQWVTHQWLKK"), 
     peaks.lwd=2, peaks.pch=18, peaks.cex=2, fragments.cex=2)

[yafeng]

@sgibb, thanks! How do I update MSnbase to try this new feature?

[lgatto]

This will install the development version from github.

library(devtools)
install_github("lgatto/MSnbase")

But, you might end into trouble. Ideally, you would also want to move the Bioconductor devel:

library(BiocInstaller)
useDevel()
biocLite()

then the above.

[yafeng]

I tried the above command, which didn't work. Looked up on internet, added this command, options(buildtools.check = function(action) TRUE ) . Now it works.