You are not asking for a Decrete [sic] (descrete) value check but rather if
the numbers are intergers.
Try this:
# from the ?is.integer help page
is.wholenumber <-
function(x, tol = .Machine$double.eps^0.5) abs(x - round(x)) < tol
aa <- data.frame( na = c( 1, 3.4, 5, 5.6), nb = c(2.4, 4, 6, 6.7))
ww <- data.frame( is.wholenumber(aa))
cbind(aa, ww)
John Kane
Kingston ON Canada
> -----Original Message-----
> From: antony.akk...@ge.com
> Sent: Mon, 2 Jul 2012 03:04:48 -0700 (PDT)
> To: r-help@r-project.org
> Subject: [R] Decrete value check in a matrix
>
> Hi All,
>
> Here i have an Dataframe (or) Matrix like this,
>
> MyMatrix <-
> ABC XYZ
> ------ -------
> 1 2.5
> 3.4 4
> 5 6
> 5.6 6.7
>
> Here i need to check each column value having decrete value or not ?.
> If that particular coulmn-value having decrete value, then the result
> should
> be
> TRUE/FALSE respectively in the result column.
> Finally, i need to get the result as Dataframe (or) Matrix form like
> this
>
> ABC XYZ ABC_RESULT XYZ_RESULT
> ------ ------- --------------------
> --------------------
> 1 2.5 TRUE FALSE
> 3.4 4 FALSE TRUE
> 5 6 TRUE TRUE
> 5.6 6.7 FALSE FALSE
>
> - Can any one help me fast ?
>
> Antony.
>
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