type of objects in last session

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type of objects in last session

Marco-3
Sometimes I comeback with a session months later. I would like to know
the type of variables I have in. So I tried:


> sapply(ls(), typeof)
        ago_ts       ago_ts.1       ago_ts.2        annualy           conn
   "character"    "character"    "character"    "character"    "character"
         d_jul             df          diffs              f            fit
   "character"    "character"    "character"    "character"    "character"
             i            ibm        ibm_url     increments increments_jul
   "character"    "character"    "character"    "character"    "character"
        jul_ts           lago       lnkd_url          model      model_jul
   "character"    "character"    "character"    "character"    "character"
            op           rain              t             t2            ts_
   "character"    "character"    "character"    "character"    "character"

And I noticed everything is type "character".
Obviously wrong answer. So How can I have the right answer ?

Thanks

--
Marco Arthur @ (M)arco Creatives

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Re: type of objects in last session

Ivan Calandra-4
Maybe "mode" or "class" instead of "typeof"?

Ivan

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Ivan Calandra, PhD
Scientific Mediator
University of Reims Champagne-Ardenne
GEGENAA - EA 3795
CREA - 2 esplanade Roland Garros
51100 Reims, France
+33(0)3 26 77 36 89
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Le 01/08/2016 à 15:28, Marco Silva a écrit :

> Sometimes I comeback with a session months later. I would like to know
> the type of variables I have in. So I tried:
>
>
>> sapply(ls(), typeof)
>          ago_ts       ago_ts.1       ago_ts.2        annualy           conn
>     "character"    "character"    "character"    "character"    "character"
>           d_jul             df          diffs              f            fit
>     "character"    "character"    "character"    "character"    "character"
>               i            ibm        ibm_url     increments increments_jul
>     "character"    "character"    "character"    "character"    "character"
>          jul_ts           lago       lnkd_url          model      model_jul
>     "character"    "character"    "character"    "character"    "character"
>              op           rain              t             t2            ts_
>     "character"    "character"    "character"    "character"    "character"
>
> And I noticed everything is type "character".
> Obviously wrong answer. So How can I have the right answer ?
>
> Thanks
>

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Re: type of objects in last session

Duncan Murdoch-2
In reply to this post by Marco-3
On 01/08/2016 9:28 AM, Marco Silva wrote:

> Sometimes I comeback with a session months later. I would like to know
> the type of variables I have in. So I tried:
>
>
>> sapply(ls(), typeof)
>         ago_ts       ago_ts.1       ago_ts.2        annualy           conn
>    "character"    "character"    "character"    "character"    "character"
>          d_jul             df          diffs              f            fit
>    "character"    "character"    "character"    "character"    "character"
>              i            ibm        ibm_url     increments increments_jul
>    "character"    "character"    "character"    "character"    "character"
>         jul_ts           lago       lnkd_url          model      model_jul
>    "character"    "character"    "character"    "character"    "character"
>             op           rain              t             t2            ts_
>    "character"    "character"    "character"    "character"    "character"
>
> And I noticed everything is type "character".
> Obviously wrong answer. So How can I have the right answer ?
>
> Thanks
>

The ls.str() function probably does what you want.

If you wanted to do it with sapply (e.g. because you want just typeof(),
not everything else), you need to take account of the fact that ls()
returns a character vector, so you have to get the objects with those
names before calling typeof.  For example,

sapply(ls(), function(name) typeof(get(name)))

Duncan Murdoch

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Re: type of objects in last session

Ivan Calandra-4
In reply to this post by Marco-3
That's what happens when I answer too fast... Sorry for that. Next time
I'll read more carefully!

Ivan

--
Ivan Calandra, PhD
Scientific Mediator
University of Reims Champagne-Ardenne
GEGENAA - EA 3795
CREA - 2 esplanade Roland Garros
51100 Reims, France
+33(0)3 26 77 36 89
[hidden email]
--
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Le 01/08/2016 à 15:45, Ivan Calandra a écrit :

> Maybe "mode" or "class" instead of "typeof"?
>
> Ivan
>
> --
> Ivan Calandra, PhD
> Scientific Mediator
> University of Reims Champagne-Ardenne
> GEGENAA - EA 3795
> CREA - 2 esplanade Roland Garros
> 51100 Reims, France
> +33(0)3 26 77 36 89
> [hidden email]
> --
> https://www.researchgate.net/profile/Ivan_Calandra
> https://publons.com/author/705639/
>
> Le 01/08/2016 à 15:28, Marco Silva a écrit :
>> Sometimes I comeback with a session months later. I would like to know
>> the type of variables I have in. So I tried:
>>
>>
>>> sapply(ls(), typeof)
>>          ago_ts       ago_ts.1       ago_ts.2 annualy           conn
>>     "character"    "character"    "character"    "character" "character"
>>           d_jul             df          diffs f            fit
>>     "character"    "character"    "character"    "character" "character"
>>               i            ibm        ibm_url     increments
>> increments_jul
>>     "character"    "character"    "character"    "character" "character"
>>          jul_ts           lago       lnkd_url model      model_jul
>>     "character"    "character"    "character"    "character" "character"
>>              op           rain              t t2            ts_
>>     "character"    "character"    "character"    "character" "character"
>>
>> And I noticed everything is type "character".
>> Obviously wrong answer. So How can I have the right answer ?
>>
>> Thanks
>>
>
> ______________________________________________
> [hidden email] mailing list -- To UNSUBSCRIBE and more, see
> 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.
>

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Re: type of objects in last session

PIKAL Petr
In reply to this post by Duncan Murdoch-2
Hi

Long time ago I (with some help from R help list) made following function, which is maybe less comprehensive as ls.str but I find it quite handy.

ls.objects <- function (pos = 1, pattern, order.by)
{
    napply <- function(names, fn) sapply(names, function(x) fn(get(x,
        pos = pos)))
    names <- ls(pos = pos, pattern = pattern)
    obj.class <- napply(names, function(x) as.character(class(x))[1])
    obj.mode <- napply(names, mode)
    obj.type <- ifelse(is.na(obj.class), obj.mode, obj.class)
    obj.size <- napply(names, object.size)
    obj.dim <- t(napply(names, function(x) as.numeric(dim(x))[1:2]))
    vec <- is.na(obj.dim)[, 1] & (obj.type != "function")
    obj.dim[vec, 1] <- napply(names, length)[vec]
    out <- data.frame(obj.type, obj.size, obj.dim)
    names(out) <- c("Type", "Size", "Rows", "Columns")
    if (!missing(order.by))
        out <- out[order(out[[order.by]]), ]
    out
}

Just issue
ls.objects()

in your working directory.

Cheers
Petr

> -----Original Message-----
> From: R-help [mailto:[hidden email]] On Behalf Of Duncan
> Murdoch
> Sent: Monday, August 1, 2016 3:48 PM
> To: Marco Silva <[hidden email]>; r-help <r-help@r-
> project.org>
> Subject: Re: [R] type of objects in last session
>
> On 01/08/2016 9:28 AM, Marco Silva wrote:
> > Sometimes I comeback with a session months later. I would like to know
> > the type of variables I have in. So I tried:
> >
> >
> >> sapply(ls(), typeof)
> >         ago_ts       ago_ts.1       ago_ts.2        annualy           conn
> >    "character"    "character"    "character"    "character"    "character"
> >          d_jul             df          diffs              f            fit
> >    "character"    "character"    "character"    "character"    "character"
> >              i            ibm        ibm_url     increments increments_jul
> >    "character"    "character"    "character"    "character"    "character"
> >         jul_ts           lago       lnkd_url          model      model_jul
> >    "character"    "character"    "character"    "character"    "character"
> >             op           rain              t             t2            ts_
> >    "character"    "character"    "character"    "character"    "character"
> >
> > And I noticed everything is type "character".
> > Obviously wrong answer. So How can I have the right answer ?
> >
> > Thanks
> >
>
> The ls.str() function probably does what you want.
>
> If you wanted to do it with sapply (e.g. because you want just typeof(), not
> everything else), you need to take account of the fact that ls() returns a
> character vector, so you have to get the objects with those names before
> calling typeof.  For example,
>
> sapply(ls(), function(name) typeof(get(name)))
>
> Duncan Murdoch
>
> ______________________________________________
> [hidden email] mailing list -- To UNSUBSCRIBE and more, see
> 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.

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