First read

Pat:

1. Thank you for this. Having not read your tutorial, but based on
what I know of your other efforts, I am sure that you are correct. Is
there a link to this on CRAN somewhere so I can refer to it in future
(too lazy to search myself)?

2. Thank you also for your continuing contributions to R
documentation. I know this takes a lot of work and you do it well.
Would that more R learners would read them -- there would be a lot
less "RTFM" type queries on r-help.

Best,
Bert

On Thu, Nov 24, 2011 at 12:27 AM, Patrick Burns
<pburns at pburns.seanet.com>  wrote:

It's very seldom that I disagree with
Bert, but here is one time.

I don't think "An Introduction to R" is
a suitable first read for people with
little computational experience.

Better (I modestly suggest) would be:

http://www.burns-stat.com/pages/Tutor/hints_R_begin.html

which includes some other references.
'Hints' is imperfect and incomplete but
it suffers slightly less from the curse of
knowledge than a lot of other R documentation.

Pat

On 24/11/2011 00:15, Bert Gunter wrote:

... and you can of course do the assignment:

Bndy<-  paste (BndY,"to",50+seq_len(BndY), "mN", sep = " ")

"An Introduction to R" tells you about such fundamentals and should be
a first read for anyone learning R.

--- Bert

On Wed, Nov 23, 2011 at 4:10 PM, Bert Gunter<bgunter at gene.com>    wrote:

Don't do this!  paste() is vectorized.

paste (BndY,"to",50+seq_len(BndY), "mN", sep = " ")

Cheers,
Bert

On Wed, Nov 23, 2011 at 3:31 PM, B77S<bps0002 at auburn.edu>    wrote:

out<- vector("list")
Ylab<- for(i in 1:length(BndY))
{
out[i]<- paste(BndY[i]," to ",BndY[i],"mN")
}

Ylab<- do.call(c, out)






markm0705 wrote

Dear R helpers

I'm trying to make up some labels for plot from this vector

BndY<-seq(from = 18900,to= 19700, by = 50)

using

Ylab<-for(i in BndY) {c((paste(i," to ",i+50,"mN")))}

but the vector created is NULL

However if i use

for(i in BndY) {print(c(paste(i," to ",i+50,"mN")))}

I can see the for loop is making the labels I'm looking for but not
sure
on my error in assigning them to a vector

Thanks in advance

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--

Bert Gunter
Genentech Nonclinical Biostatistics

Internal Contact Info:
Phone: 467-7374
Website:

http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm

--
Patrick Burns
pburns at pburns.seanet.com
twitter: @portfolioprobe
http://www.portfolioprobe.com/blog
http://www.burns-stat.com
(home of 'Some hints for the R beginner'
and 'The R Inferno')