[R] First read

Patrick Burns pburns at pburns.seanet.com
Thu Nov 24 21:37:25 CET 2011


Bert,

Your laziness is well founded -- it
is not on CRAN, you have to go all
the way over to another website.

And thanks for the kind words (even
though we Europeans are free to be
ingrates today).

Pat

On 24/11/2011 14:23, Bert Gunter wrote:
> 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
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> View this message in context:
>>>>> http://r.789695.n4.nabble.com/Looping-and-paste-tp4101892p4102066.html
>>>>> Sent from the R help mailing list archive at Nabble.com.
>>>>>
>>>>> ______________________________________________
>>>>> 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.
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> 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')
>>
>> ______________________________________________
>> 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.
>>
>
>
>

-- 
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')



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