t$sample
pca <- prcomp (t(catopsis))
plot(pca, catopsis [])
summary(prcomp(catopsis))
biplot(prcomp(catopsis, scale = TRUE))
- Original Message -
From: Kevin Wright-5 [via R]
To: colin1
Sent: Monday, January 25, 2010 5:04 PM
Subject: Re: [R] PCA: Showing file datalabels
str(catopsis) shows no labels, so how can biplot know what to use?
Try this before call prcomp:
colnames(catopsis) <- c('a','b','c','d')
rownames(catopsis) <- cat$sample
Also, see the 'reshape' package for easier data manipulation.
Kevin
On Mon, Jan 25, 2010 at 10:39 AM, colin1 wrote:
>
> Th
The script below successfully produces a biplot of the data but the 'site
names' (rows) and the names of the 'response variables' (columns) are shown
as simple numerals (rather than the column and row names). How might I
'enforce' the use of the row/column names used in the datafile (section of
da
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