[R] Hash Table - Select and Change Data iniside Matrix

[R. Michael Weylandt]

Greater than or equal to is simply >= like most languages.

For more complicated questions, simply combine booleans:

E.g., between 5 and 25

with(dat, (AGE < 25) & (AGE > 5))

and so on.

Michael

On Mon, May 28, 2012 at 9:34 AM, Rantony <antony.akkara at ge.com> wrote:
> Hi Michel,
>
>
>
> More than equal to function, how can I use other function ?,
>
> For example :-
>
>
>
> Age between
>
> Age Greater Than or Equal to like that …. How ?
>
>
>
>
>
>
>
> From: Michael Weylandt [via R] [mailto:ml-node+s789695n4631319h27 at n4.nabble.com]
> Sent: Friday, May 25, 2012 7:48 PM
> To: Akkara, Antony (GE Energy, Non-GE)
> Subject: Re: Hash Table - Select and Change Data iniside Matrix
>
>
>
> There aren't "empty" values in R..... nor is it likely you have a
> matrix of this form, but perhaps a data frame.
>
> Perhaps this works for you,
>
> If "dat" is the name of your data.frame,
>
> dat[dat$AGE == 30,"TRUE/FALSE"] <- TRUE
>
> Next time do use dput() to give a reproducible example of your data --
> if it's very large, just limit it to the first 30 rows or so with
> dput(head(dats, 30))
>
> Michael
>
> On Fri, May 25, 2012 at 9:43 AM, Rantony <[hidden email]> wrote:
>
>
>> Hi,
>>
>> Here i have been a matrix like this,
>>
>> *NAME    AGE   PALCE                TRUE/FALSE*
>> ABC         20      INDIA
>> XYZ         30       FRANCE
>> PQR        40       USA
>> MNO     30        KENIYA
>> DEF        25        AUSTRALIA
>>
>> Here,* TRUE/FALSE*  Column containing empty values.
>>
>> So my requirement what is , need to change all the *TRUE/FALSE *column value
>> into "*TRUE*" where *AGE = 30*.
>> Note :- i *dont want* to use* any loop *and do. Main intension is avoid
>> loop,bcz there is a bulk of data.
>>
>> Final Matrix should be like this
>> *NAME    AGE   PALCE                TRUE/FALSE*
>> ABC         20      INDIA
>> XYZ         30       FRANCE                     TRUE
>> PQR        40       USA
>> MNO     30        KENIYA                      TRUE
>> DEF        25        AUSTRALIA
>>
>>
>> Immediate Help Requied.
>>
>> Your,
>> Antony.
>>
>>
>> --
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>>
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