[R] find points on a graph

aoife aoife.m.doherty at gmail.com
Wed Mar 7 13:03:25 CET 2012

Many thanks for your reply.

Yes absolutely. So this is a small example:

> library(ca)
> table <- read.table("test", header=TRUE)
> table
      codon1 codon2 codon3
gene1    4.0      7     11
gene2    7.0    222      8
gene3    0.2      3      8
> ca_analysis <- ca(table)
> plot <- plot(ca_analysis)

and then i took a screen shot of the plot i can see.


so now for example i have a seperate file with 2 gene names:

and i want to find these two genes/nodes on the graph, and either highlight
them a different color, or draw a border/shade them in some way. basically
highlight them in any way?

is this any more helpful to explain what i mean?


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