Re: [R] Remove Even Number from A Vector

2019-03-03 Thread Duncan Murdoch

On 03/03/2019 3:44 a.m., Ivan Krylov wrote:

Hi Darren,

On Sat, 2 Mar 2019 22:27:55 +
Darren Danyluk  wrote:


It sounds like she is working with the very basics of this software,
and her task is to write the code which would result in the
extraction of "odd" data from a dataset of restaurant sales.


Not a native English speaker here; what exactly do you mean by "odd" in
this case?


"Odd" numbers have a remainder of 1 when divided by 2; "even" numbers 
are multiples of 2.


Duncan Murdoch



If I ignore the "subject" field, it looks like your daughter should be
looking for outlier detection methods. For example, https://rseek.org/
offers some good results for "outlier detection".


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Re: [R] Remove Even Number from A Vector

2019-03-03 Thread Ivan Krylov
Hi Darren,

On Sat, 2 Mar 2019 22:27:55 +
Darren Danyluk  wrote:

> It sounds like she is working with the very basics of this software,
> and her task is to write the code which would result in the
> extraction of "odd" data from a dataset of restaurant sales.

Not a native English speaker here; what exactly do you mean by "odd" in
this case?

If I ignore the "subject" field, it looks like your daughter should be
looking for outlier detection methods. For example, https://rseek.org/
offers some good results for "outlier detection".

-- 
Best regards,
Ivan

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Re: [R] Remove Even Number from A Vector

2019-03-02 Thread Jim Lemon
Hi Darren,
You're probably looking for the %% (remainder) operator:

x<-1:10
# get odd numbers
x[as.logical(x%%2)]
# get even numbers
x[!(x%%2)]

Jim

On Sun, Mar 3, 2019 at 4:10 PM Darren Danyluk  wrote:
>
> Hello,
>
> I found this email when looking for some help with R Studio.  It's actually 
> my daughter who is looking for help.
>
> It sounds like she is working with the very basics of this software, and her 
> task is to write the code which would result in the extraction of "odd" data 
> from a dataset of restaurant sales.
>
> This is a shot in the dark...please ignore if my question makes little or no 
> sense.  I have no working knowledge of R software.
>
> Thanks.
>
> [[alternative HTML version deleted]]
>
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.

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Re: [R] Remove Even Number from A Vector

2019-03-02 Thread Darren Danyluk
Hello,

I found this email when looking for some help with R Studio.  It's actually my 
daughter who is looking for help.

It sounds like she is working with the very basics of this software, and her 
task is to write the code which would result in the extraction of "odd" data 
from a dataset of restaurant sales.

This is a shot in the dark...please ignore if my question makes little or no 
sense.  I have no working knowledge of R software.

Thanks.

[[alternative HTML version deleted]]

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and provide commented, minimal, self-contained, reproducible code.


Re: [R] Remove Even Number from A Vector

2008-08-01 Thread Paul Roebuck
On Fri, 1 Aug 2008, Gundala Viswanath wrote:

 How can I remove the even number from the following vector

  x
 [1]   4   5   6   8  17  20  21  22  23  25  26  31  35  36  38  40  41  42  
 43
 [20]  44  50  74  75  82  84  89  90  91  95  96  97 100 101 102 118 119 121 
 122
 [39] 123 135 136 157 158

 yielding

 5, 17, 21, 23, 25, . (keep odd number).


x[which(x %% 2 != 0)]

--
SIGSIG -- signature too long (core dumped)

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Re: [R] Remove Even Number from A Vector

2008-08-01 Thread Ferry
x[!(x %% 2 == 0)]

On Thu, Jul 31, 2008 at 10:01 PM, Gundala Viswanath [EMAIL PROTECTED]wrote:

 Dear all,

 How can I remove the even number from the following vector

  x
 [1]   4   5   6   8  17  20  21  22  23  25  26  31  35  36  38  40  41  42
  43
 [20]  44  50  74  75  82  84  89  90  91  95  96  97 100 101 102 118 119
 121 122
 [39] 123 135 136 157 158

 yielding

 5, 17, 21, 23, 25, . (keep odd number).

 - Gundala Viswanath
 Jakarta - Indonesia

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 https://stat.ethz.ch/mailman/listinfo/r-help
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 http://www.R-project.org/posting-guide.html
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[[alternative HTML version deleted]]

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[R] Remove Even Number from A Vector

2008-07-31 Thread Gundala Viswanath
Dear all,

How can I remove the even number from the following vector

 x
[1]   4   5   6   8  17  20  21  22  23  25  26  31  35  36  38  40  41  42  43
[20]  44  50  74  75  82  84  89  90  91  95  96  97 100 101 102 118 119 121 122
[39] 123 135 136 157 158

yielding

5, 17, 21, 23, 25, . (keep odd number).

- Gundala Viswanath
Jakarta - Indonesia

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