R help - Jan 2010 - selection of multiple subscripts

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?

Yours,

rhelpatconference.jabber.org
r251

Hi

see ?points or ?lines which you would surely found out if you bother to 
look at ?plot help page

Regards
Petr

r-help-bounces at r-project.org napsal dne 13.01.2010 13:36:57:
> 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?
> 
> Yours,
> 
> rhelpatconference.jabber.org
> r251
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

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