[R] Subseting a data.frame

Bert Gunter
Thu, 17 Oct 2013 16:03:06 -0000

"Kindly guide" ...

This is a very basic question, so the kindest guide I can give is to read
an Introduction to R (ships with R) or a R web tutorial of your choice so
that you can learn how R works instead of posting to this list.

Cheers,
Bert


On Wed, Oct 16, 2013 at 11:55 PM, Katherine Gobin
<katherine_gobin@yahoo.com
> wrote:

> Dear Forum,
>
> I have a data frame as
>
> mydat = data.frame(basel_asset_class = c(2, 8, 8 ,8), defa_frequency >
c(0.15, 0.07, 0.03, 0.001))
>
> > mydat
>   basel_asset_class defa_frequency
> 1                 2          0.150
> 2                 8          0.070
> 3                 8          0.030
> 4                 8          0.001
>
>
> I need to get the subset of this data.frame where no of records for the
> given basel_asset_class is > 2, i.e. I need to obtain subset of above
> data.frame as (since there is only 1 record, against basel_asset_class = 2,
> I want to filter it)
>
> > mydat_a
>   basel_asset_class defa_frequency
> 1                 8          0.070
> 2                 8          0.030
> 3                 8          0.001
>
> Kindly guide
>
> Katherine
>         [[alternative HTML version deleted]]
>
>
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>


--

Bert Gunter
Genentech Nonclinical Biostatistics

(650) 467-7374