MikSmith <mike <at> hsm.org.uk> writes: > I'm trying to write a generic script for processing some data which finishes > off with some plots. Given Im never sure how many columns will be in my > dataframe I wanted to using the following > > plot(spectra.wavelength, cormat, type = "l", ylim=c(-1,1), xlab="Wavelength > (nm)", ylab="Correlation") > > however even if I specify as type="l" it appears plot as points (right hand > plot). If I specify a range such as > > plot(650:700, cormat, type = "l", ylim=c(-1,1), xlab="Wavelength (nm)", > ylab="Correlation") > > it looks good (left hand plot). If I try something like: >
The example is not reproducible so we can only guess. I assume spectra.wavelength is a matrix, so the matrix x/y values are plotted. In the second example the first parameter is definitively a vector. Dieter ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.

