[R] Repeat if

[Jacques VESLOT]

you may have a vector with only NA values in it...

max(c(NA,NA), na.rm=T)
[1] -Inf
Warning message:
aucun argument pour max ; -Inf est renvoyé

Jacques VESLOT

INRA - Biostatistique & Processus Spatiaux
Site Agroparc 84914 Avignon Cedex 9, France

Tel: +33 (0) 4 32 72 21 58
Fax: +33 (0) 4 32 72 21 84



Birgit Lemcke a écrit :
> Thanks that was really a quick answer.
>
> It works but I get this warning message anyway:
>
> 1: kein nicht-fehlendes Argument für min; gebe Inf zurück (None 
> not-lacking argument for min; give Inf back)
> 2: kein nicht-fehlendes Argument für max; gebe -Inf zurück 
>
> what does this mean?
>
> Greeting and thanks for your help!
>
> Birgit
>
> Am 28.06.2007 um 12:05 schrieb Jacques VESLOT:
>
>> sapply(1:85, function(i) eval(parse(text=paste("range(V", i, ", 
>> na.rm=T)", sep=""))))
>>
>> Jacques VESLOT
>>
>> INRA - Biostatistique & Processus Spatiaux
>> Site Agroparc 84914 Avignon Cedex 9, France
>>
>> Tel: +33 (0) 4 32 72 21 58
>> Fax: +33 (0) 4 32 72 21 84
>>
>>
>>
>> Birgit Lemcke a écrit :
>>> Hello,
>>> (Power Book G4, Mac OS X, R 2.5.0)
>>>
>>> I would like to repeat the function range for 85 Vectors (V1-V85).
>>> I tried with this code:
>>>
>>> i<-0
>>>  > repeat {
>>> + i<-i+1
>>> + if (i<85) next
>>> + range (Vi, na.rm = TRUE)
>>> + if (i==85) break
>>> + }
>>>
>>> I presume that the Vi is wrong, because in this syntax i is not 
>>> known  as a variable. But I don´t know how to say that it is a 
>>> variable here.
>>> Would be nice if somebody could help me.
>>> Perhaps I´m thinking too complicated and there is an easier way to 
>>> do  this.
>>>
>>> Thanks in advance
>>>
>>> Greetings
>>>
>>> Birgit
>>>
>>> Birgit Lemcke
>>> Institut für Systematische Botanik
>>> Zollikerstrasse 107
>>> CH-8008 Zürich
>>> Switzerland
>>> Ph: +41 (0)44 634 8351
>>> birgit.lemcke at systbot.uzh.ch <mailto:birgit.lemcke at systbot.uzh.ch>
>>>
>>>
>>>
>>>
>>>
>>>
>>> [[alternative HTML version deleted]]
>>>
>>>   
>>> ------------------------------------------------------------------------
>>>
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>>> R-help at stat.math.ethz.ch <mailto:R-help at stat.math.ethz.ch> 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.
>>>
>>>   
>>>
>
> Birgit Lemcke
> Institut für Systematische Botanik
> Zollikerstrasse 107
> CH-8008 Zürich
> Switzerland
> Ph: +41 (0)44 634 8351
> birgit.lemcke at systbot.uzh.ch <mailto:birgit.lemcke at systbot.uzh.ch>
>  
>
>
>
>