[R] convert data.frame to parameters
charles.annis at statisticalengineering.com
Mon Oct 7 15:58:03 CEST 2013
Yup. You saved the day with "assign." Works like a champ. Thanks too for the "do.call" suggestion. It turns out, however, that I'm using all these objects (parameters) in a more complex code, and not a single function call.
Charles Annis, P.E.
Charles.Annis at StatisticalEngineering.com
From: Bert Gunter [mailto:gunter.berton at gene.com]
Sent: Monday, October 7, 2013 9:37 AM
To: Charles Annis
Cc: Duncan Murdoch; r-help at r-project.org
Subject: Re: [R] convert data.frame to parameters
1. ?assign is what you're looking for, I think.
2. But I would guess that you do not need to do this. As a further guess, see ?do.call for creating a function call that you can give a list of arguments/parameters.
On Mon, Oct 7, 2013 at 6:07 AM, Charles Annis <charles.annis at statisticalengineering.com> wrote:
> Sorry for using "parameters" when I meant "objects." I also wasn't
> sufficiently clear about what I'm trying to do.
> Your suggestion produces a single object, "parameters." What I want
> are 26 objects, a , b, c, ... whose values are df$values, which in my
> case are numeric.
> Charles Annis, P.E.
> Charles.Annis at StatisticalEngineering.com
> -----Original Message-----
> From: Duncan Murdoch [mailto:murdoch.duncan at gmail.com]
> Sent: Monday, October 7, 2013 8:04 AM
> To: Charles Annis
> Cc: r-help at r-project.org
> Subject: Re: [R] convert data.frame to parameters
> On 07/10/2013 7:56 AM, Charles Annis wrote:
>> I have a 24 row, 2-column csv file. The first column is character,
>> with the names of parameters. The second column is numeric,
>> containing the parameter values.
>> I can produce a 2-column data.frame with case.study.parameters <-
>> I want to convert the data.frame to 24 parameters having those names
>> and their associated numeric values.
>> I've tried using package "ParamHelpers" with no success. Likely
>> because it really isn't intended for that purpose.
>> Can anyone help?
> You say you want "parameters", but that's not an R type. So here's
> one way, but it might not be what you're looking for.
> df <- data.frame(names=letters, values=1:26) parameters <- df$values
> names(parameters) <- df$names
> Duncan Murdoch
> R-help at r-project.org mailing list
> PLEASE do read the posting guide
> and provide commented, minimal, self-contained, reproducible code.
Genentech Nonclinical Biostatistics
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