R help - Nov 2008 - Check for date variable in a arbitrary dataset

Hello,
This is my first time posting to the R-help list and I apologize for
the apparent triviality of my query.
I am creating an R script to create Univariate Exploratory Analysis of
a input dataset (No meta-data to provide extra information about each
column)
.
Providing summary statistics is possible in case of numeric data and
using all.is.numeric() from the Hmisc package allows me to filter out
those columns with alpha-numeric content.

I have tried to check if a column is a date field or not, but have not
been able to do so. Are Regular Expressions the only answer? I've also
looked for CRAN packages but haven't found any.
Bering a newbie user of R, I do not possess the requisite knowledge to
write my own function for the above objective.

Thank you for your time
Harsh
Decisions Systems Group
Mu Sigma Inc.
Chicago, IL

The classes of the columns are:

sapply(DF, class)


On Mon, Nov 24, 2008 at 3:39 AM, Harsh <singhalblr at gmail.com>
wrote:
> Hello,
> This is my first time posting to the R-help list and I apologize for
> the apparent triviality of my query.
> I am creating an R script to create Univariate Exploratory Analysis of
> a input dataset (No meta-data to provide extra information about each
> column)
> .
> Providing summary statistics is possible in case of numeric data and
> using all.is.numeric() from the Hmisc package allows me to filter out
> those columns with alpha-numeric content.
>
> I have tried to check if a column is a date field or not, but have not
> been able to do so. Are Regular Expressions the only answer? I've also
> looked for CRAN packages but haven't found any.
> Bering a newbie user of R, I do not possess the requisite knowledge to
> write my own function for the above objective.
>
> Thank you for your time
> Harsh
> Decisions Systems Group
> Mu Sigma Inc.
> Chicago, IL
>
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