plot.sensitivity: Plot sensitivity analysis results
In multirich: Calculate Multivariate Richness via UTC and sUTC

Goal is to create a plot similar to a ROC plot, where at one side, everything is in a single category, and on the other end, everything is in its own category.

1 2	## S3 method for class 'sensitivity' plot(sutc.vals, traitspaces, n, com.names = "none", in.pdf = "none")

`sutc.vals`	A list containing scaled unique trait combinations (see above)
`traitspaces`	A vector containing the traitspace for each combination value
`n`	The sample size of the trait x record matrix
`com.names`	The names of the communities being evaluated (for labeling purposes)
`in.pdf`	A pdf file to be generated, containing the two plots. "none" skips generating a pdf, and "no.plot" disables the function