Plot Residue Loadings along PC1 to PC3

Plot residue loadings along PC1 to PC3 from a given xyz C-alpha matrix of loadings.

# S3 method for pca.loadings
plot(x, resnums = seq(1, (length(x[, 1])/3), 25), ...)

Arguments

x

the results of principal component analysis obtained from pca.xyz, or just the loadings returned from pca.xyz.
resnums

a numeric vector of residue numbers.
...

extra plotting arguments.

Value

Called for its effect.

References

Grant, B.J. et al. (2006) Bioinformatics 22, 2695--2696.

Author

Barry Grant

See also

pca.xyz, plot.pca

Examples

attach(transducin)

pc.xray <- pca.xyz(pdbs$xyz[, gap.inspect(pdbs$xyz)$f.inds])
plot.pca.loadings(pc.xray$U)

detach(transducin)