[R] subset range selections

[jim holtman]

You can find the operators with:

?"|"

This will show you logical operators.  You can do:

?"+"

to get the others.

On Mon, Jul 13, 2009 at 10:21 AM, Mark Knecht<markknecht at gmail.com> wrote:
> Thanks Jim.
>
> How does one search the help system for info on simple logic like this?
>
> On Mon, Jul 13, 2009 at 6:59 AM, jim holtman<jholtman at gmail.com> wrote:
>> 1)   X <- subset(A, (t < 1000) | (t > 1200))
>> 2)   X <- subset(A, (t > 1000) & (t < 1200))
>>
>> On Mon, Jul 13, 2009 at 9:47 AM, Mark Knecht<markknecht at gmail.com> wrote:
>>> How would I write the two selections each in a single subset command?
>>>
>>> 1) Two non-overlapping time ranges I want to collect together - before
>>> 10AM and after noon. Should be an OR function:
>>>
>>> X = subset(A, t<1000)  + subset(A, t>1200)
>>>
>>> 2) One range between two defined times like after 10AM and before
>>> noon. Should be an AND function:
>>>
>>> X1 = subset(A, t>1000)
>>> X = subset(X1, t<1200)
>>>
>>> Thanks,
>>> Mark
>>>
>>> P.S. - The help system seems very difficult for finding this sort of
>>> information!
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> 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.
>>>
>>
>>
>>
>> --
>> Jim Holtman
>> Cincinnati, OH
>> +1 513 646 9390
>>
>> What is the problem that you are trying to solve?
>>
>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?