Gabor Grothendieck <ggrothendi...@gmail.com> writes:
> On Wed, Oct 29, 2014 at 9:09 AM, Thorsten Jolitz <tjol...@gmail.com> wrote:
>>
>> Hi List,
>>
>> are there ways to get signatures of all functions of a library in a
>> format that is easy to process by a programm (list, xml or so)?
>>
>> The info about function name, return value and arguments (types) is all
>> there in the docs, but more in a human readable format embedded in much
>> extra information. How to extract it without writing a documentation
>> parser or so? I'm pretty sure the functionality exists, but did not find
>> it.
>>
>
> In general, R functions do not have argument and return types (and
> don't even have to have names) but maybe this would do:
Thats ok, I only need to know about it. Makes calling these functions
even easier.
> library(lattice) # need this for make.groups
>
> # load the package of interest
> library(zoo)
>
> DF <- do.call(make.groups, Map(function(x) names(formals(get(x))),
> ls("package:zoo")))
> rownames(DF) <- NULL
>
> giving:
>
>> head(DF)
> data which
> 1 x as.Date
> 2 ... as.Date
> 3 x as.Date.numeric
> 4 origin as.Date.numeric
> 5 ... as.Date.numeric
> 6 x as.Date.ts
Thats a nice solution, thanks a lot!
--
cheers,
Thorsten
______________________________________________
R-help@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.
