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barron
2016 Apr 07
2
simple question on data frames assignment
Hello,
Or even simpler, without ifelse,
colordata$response <- colordata$color == 'blue' + 0
Hope this helps,
Rui Barradas
?
Citando David Barron <dnbarron at gmail.com>:
> ifelse is vectorised, so just use that without the loop.
>
> colordata$response <- ifelse(colordata$color == 'blue', 1, 0)
>
> David
>
> On 7 April 2016 at 12:41, Michael Artz <michaeleartz at gmail.com> wrote:
>> Hi I'm not sure...
2016 Apr 07
4
simple question on data frames assignment
Thaks so much! And how would you incorporate lapply() here?
On Thu, Apr 7, 2016 at 6:52 AM, David Barron <dnbarron at gmail.com> wrote:
> ifelse is vectorised, so just use that without the loop.
>
> colordata$response <- ifelse(colordata$color == 'blue', 1, 0)
>
> David
>
> On 7 April 2016 at 12:41, Michael Artz <michaeleartz at gmail.com> wrote:
>
>> Hi I'...
2016 Apr 07
0
simple question on data frames assignment
ifelse is vectorised, so just use that without the loop.
colordata$response <- ifelse(colordata$color == 'blue', 1, 0)
David
On 7 April 2016 at 12:41, Michael Artz <michaeleartz at gmail.com> wrote:
> Hi I'm not sure how to ask this, but its a very easy question to answer for
> an R person.
>
> What is an easy way to check for a column value and then assigne a
2016 Apr 07
4
simple question on data frames assignment
Hi I'm not sure how to ask this, but its a very easy question to answer for
an R person.
What is an easy way to check for a column value and then assigne a new
column a value based on that old column value?
For example, Im doing
colordata <- data.frame(id = c(1,2,3,4,5), color = c("blue", "red",
"green", "blue", "orange"))
for (i in
2016 Apr 08
0
simple question on data frames assignment
...heza.cz<mailto:petr.pikal at precheza.cz>> wrote:
Hi
> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org<mailto:r-help-bounces at r-project.org>] On Behalf Of Michael
> Artz
> Sent: Thursday, April 7, 2016 1:57 PM
> To: David Barron <dnbarron at gmail.com<mailto:dnbarron at gmail.com>>
> Cc: r-help at r-project.org<mailto:r-help at r-project.org>
> Subject: Re: [R] simple question on data frames assignment
>
> Thaks so much! And how would you incorporate lapply() here?
Why do you want to use lapply? What is...
2016 Apr 08
0
simple question on data frames assignment
...tor'
On Thu, Apr 7, 2016 at 8:43 AM, <ruipbarradas at sapo.pt> wrote:
> Hello,
>
> Or even simpler, without ifelse,
>
> colordata$response <- colordata$color == 'blue' + 0
>
> Hope this helps,
>
> Rui Barradas
>
>
> Citando David Barron <dnbarron at gmail.com>:
>
> ifelse is vectorised, so just use that without the loop.
>
> colordata$response <- ifelse(colordata$color == 'blue', 1, 0)
>
> David
>
> On 7 April 2016 at 12:41, Michael Artz <michaeleartz at gmail.com> wrote:
>
> Hi I'm not...
2016 Apr 07
2
simple question on data frames assignment
== is also vectorised, and you're better off with TRUE and FALSE
rather than 1 and 0, so I'd recommend:
colordata$response <- colordata$color == 'blue'
Hadley
On Thu, Apr 7, 2016 at 6:52 AM, David Barron <dnbarron at gmail.com> wrote:
> ifelse is vectorised, so just use that without the loop.
>
> colordata$response <- ifelse(colordata$color == 'blue', 1, 0)
>
> David
>
> On 7 April 2016 at 12:41, Michael Artz <michaeleartz at gmail.com> wrote:
>
>> Hi I'm...
2016 Apr 07
2
simple question on data frames assignment
...> Sent from my phone. Please excuse my brevity.
>
> On April 7, 2016 4:57:04 AM PDT, Michael Artz <michaeleartz at gmail.com>
> wrote:
>>
>> Thaks so much! And how would you incorporate lapply() here?
>>
>> On Thu, Apr 7, 2016 at 6:52 AM, David Barron <dnbarron at gmail.com> wrote:
>>
>> ifelse is vectorised, so just use that without the loop.
>>>
>>> colordata$response <- ifelse(colordata$color == 'blue', 1, 0)
>>>
>>> David
>>>
>>> On 7 April 2016 at 12:41, Michael Artz...
2017 Oct 26
0
<p>R encountered a fatal error. </p> The session was terminated. + *** caught illegal operation ***
Also, check whether R runs standalone, either as Rgui or in Terminal.app (just start Terminal and type "R" if you haven't tried it before.)
-pd
> On 26 Oct 2017, at 14:57 , David Barron <dnbarron at gmail.com> wrote:
>
> I've seen similar issues reported on the RStudio community site:
> https://community.rstudio.com/. You might want to check in there, as I
> think this may well be an RStudio issue rather than a problem with R itself.
>
> Dave
>
> On 26 Oct...
2016 Apr 07
0
simple question on data frames assignment
...ata2 data frame to have more columns.
--
Sent from my phone. Please excuse my brevity.
On April 7, 2016 4:57:04 AM PDT, Michael Artz <michaeleartz at gmail.com> wrote:
>Thaks so much! And how would you incorporate lapply() here?
>
>On Thu, Apr 7, 2016 at 6:52 AM, David Barron <dnbarron at gmail.com>
>wrote:
>
>> ifelse is vectorised, so just use that without the loop.
>>
>> colordata$response <- ifelse(colordata$color == 'blue', 1, 0)
>>
>> David
>>
>> On 7 April 2016 at 12:41, Michael Artz <michaeleartz at gmail.co...
2017 Oct 26
2
<p>R encountered a fatal error. </p> The session was terminated. + *** caught illegal operation ***
I've seen similar issues reported on the RStudio community site:
https://community.rstudio.com/. You might want to check in there, as I
think this may well be an RStudio issue rather than a problem with R itself.
Dave
On 26 October 2017 at 12:11, Eric Berger <ericjberger at gmail.com> wrote:
> How about going back to earlier versions if you don't need the latest ones?
>
2016 Apr 07
0
simple question on data frames assignment
...excuse my brevity.
>>
>> On April 7, 2016 4:57:04 AM PDT, Michael Artz
><michaeleartz at gmail.com>
>> wrote:
>>>
>>> Thaks so much! And how would you incorporate lapply() here?
>>>
>>> On Thu, Apr 7, 2016 at 6:52 AM, David Barron <dnbarron at gmail.com>
>wrote:
>>>
>>> ifelse is vectorised, so just use that without the loop.
>>>>
>>>> colordata$response <- ifelse(colordata$color == 'blue', 1, 0)
>>>>
>>>> David
>>>>
>>>> On...
2016 Apr 08
0
simple question on data frames assignment
...wickham at gmail.com> wrote:
> == is also vectorised, and you're better off with TRUE and FALSE
> rather than 1 and 0, so I'd recommend:
>
> colordata$response <- colordata$color == 'blue'
>
> Hadley
>
> On Thu, Apr 7, 2016 at 6:52 AM, David Barron <dnbarron at gmail.com> wrote:
> > ifelse is vectorised, so just use that without the loop.
> >
> > colordata$response <- ifelse(colordata$color == 'blue', 1, 0)
> >
> > David
> >
> > On 7 April 2016 at 12:41, Michael Artz <michaeleartz at gmail.com&...
2009 Jun 15
0
books on Time serie
...exp(2) =
> 7.39
> ...etc
>
>
> --
> View this message in context: http://www.nabble.com/axis-on-a-non-uniform-scale-tp24032916p24032916.html
> Sent from the R help mailing list archive at Nabble.com.
>
>
>
>
>
>
>
>
>
> From: David Barron <dnbarron@googlemail.com>
> Date: 15 June 2009 9:42:26 PM
> To: poleteiep34@hotmail.com
> Cc: r-help@r-project.org
> Subject: Re: [R] NA as a result of using GLM
>
>
> Because you have 16 variables but only 10 observations.
>
> David
>
> On Mon, Jun 15, 2009 at 12:09, pole...