On Nov 4, 2011, at 1:50 PM, "Francois Pepin" <francois.pe...@sequentainc.com>
wrote:
> Hi,
>
> assign is your friend here:
> apply(data,1,function(x)assign(x[1],x[2],envir = .GlobalEnv))
>
> As a note, you probably don't want to use data as a variable because it
> overwrites the data function, leading to unwanted side-effects if you ever
> use it.
While it is true that using "data" as an object name is a bad choice, the
specific reason offered is incorrect. Functions are kept in a different list
from other named objects and creating a "data" data.frame will NOT overwrite
the data function.
--
David.
>
> Cheers,
>
> François Pepin
> Scientist
>
> Sequenta, Inc.
> 400 E. Jamie Court, Suite 301
> South San Francisco, CA 94080
>
> 650 243 3929 p
>
> francois.pe...@sequentainc.com
> www.sequentainc.com
>
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> On Nov 3, 2011, at 23:24 , Aher wrote:
>
>> Hi List,
>>
>> I want to read several parameters from data frame and load them as object
>> into R session, Is there any package or function in R for this??
>>
>> Here is example
>>
>> param <-c("clust_num", "minsamp_size", "maxsamp_size", "min_pct", "max_pct")
>> value <-c(15, 20000, 200000, 0.001, .999)
>> data <- data.frame ( cbind(param , value))
>> data
>> param value
>> 1 clust_num 15
>> 2 minsamp_size 20000
>> 3 maxsamp_size 2e+05
>> 4 min_pct 0.001
>> 5 max_pct 0.999
>>
>> My data contains many such parameters, I need to read each parameter and its
>> value from the data and load it as objects in R session as below:
>>
>> clust_num <- 15
>> minsamp_size <-20000
>> maxsamp_size <-2e+05
>> min_pct <-0.001
>> max_pct <-0.999
>>
>> The way right now I am doing it is as creating as many variables as
>> parameters in the data frame and one observation for value of each
>> parameter.
>> example:
>> clust_num minsamp_size maxsamp_size min_pct max_pct
>> 15 20000 200000 0.001 0.999
>>
>> data$ clust_num , data$minsamp_size, .....
>>
>> Is there any better way for doing this?
>>
>>
>> --
>> View this message in context:
>> http://r.789695.n4.nabble.com/Reading-parameters-from-dataframe-and-loading-as-objects-tp3989150p3989150.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> ______________________________________________
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>> and provide commented, minimal, self-contained, reproducible code.
>
> ______________________________________________
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