On 13/01/2010 7:36 AM, e-letter wrote:
Readers,
For a data set 'x':
1 a
2 b
3 c
4 d
5 e
6 f
7 g
8 h
9 i
How to select multiple subscripts to plot? For example to plot values
1:3 and 9:10:
plot(x[1:3,1],x[,2])
and
plot(x[9:10,1],x[,2])
into one plot?
Neither of those will work, because your x[,2] vector is longer than the
other vector.
What you want is something like this:
plot(col2 ~ col1, data=x[c(1:3, 9:10),])
where col1 and col2 are the names of those two columns.
Duncan Murdoch
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