Re: [R] simple question about variables....

From: Stéphane Cruveiller <scruveil_at_genoscope.cns.fr>
Date: Thu 13 Jul 2006 - 18:19:16 EST

Thx for the tip....

Stéphane.

Jacques VESLOT a écrit :
> see ?"$"
> 'x$name' is equivalent to 'x[["name"]]'
>
> so you need use :
> eval(parse(text = paste("OBJ$", varname)))
>
> -------------------------------------------------------------------
> Jacques VESLOT
>
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>
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>
>
> Stéphane Cruveiller a écrit :
>> Dear R users,
>>
>> I have a simple question on variable manipulation.
>> Imagine I have an object "OBJ" that has "toto" as one of its variables.
>> I would like to understand why if I do
>>
>> > varname <- "toto"
>>
>> >OBJ$varname returns no results
>>
>> whereas
>>
>> > OBJ[varname] returns the column
>> entitled "toto"
>>
>>
>> Thanks for your help.
>>
>> Stéphane.
>>
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu Jul 13 18:23:49 2006

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