Re: [R] Iteration in R

[R. Michael Weylandt]

Because lapply() tries to pass an argument to FUN and there's none
that it can receive.

This would work however:

lapply(rep(100, 6), rnorm, mean = 1, sd = 2)

Michael

On Sat, Dec 3, 2011 at 2:42 PM, B77S  wrote:
> Interesting and thank you; I'm confused as to why this doesn't work with:
>
> lapply(rep(1,6), FUN=rnorm, n=10, mean=1.0, sd=1)
>
>
>
> andrija djurovic wrote
>>
>> Hi Brad. Maybe something like this:
>>
>> lapply(rep(1,6), function(x) rnorm(10,0,1))
>>
>> Andrija
>>
>> On Sat, Dec 3, 2011 at 8:21 PM, B77S  wrote:
>>
>>> Hi Michael,
>>> How would you do this with lapply to return a list?
>>> I can't seem to get that to work (I haven't used these much and am trying
>>> to
>>> learn).
>>> Thanks
>>> Brad
>>>
>>>
>>> Michael Weylandt wrote
>>> >
>>> > ? replicate
>>> >
>>> > or a for loop
>>> >
>>> > or do all one hundred simulations at once
>>> >
>>> > x <- matrix(rnorm(100^2, 1, 2), 100)
>>> >
>>> > It's going to depend on what you want to do with the numbers.
>>> >
>>> > Michael
>>> >
>>> > On Sat, Dec 3, 2011 at 1:10 PM, Martin Zonyrah 
>>> wrote:
>>> >> Hi,
>>> >> I need help. I am trying to iterate this command  x <- rnorm(100, 1.0,
>>> >> 2.0) one hundred times in R but I don't seem to have a clue.
>>> >> Can anyone help?
>>> >> Your help is very much appreciated.
>>> >>
>>> >> Martin
>>> >>
>>> >>        [[alternative HTML version deleted]]
>>> >>
>>> >>
>>> >> __
>>> >> R-help@ 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.
>>> >>
>>> >
>>> > __
>>> > R-help@ 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.
>>> >
>>>
>>>
>>> --
>>> View this message in context:
>>> http://r.789695.n4.nabble.com/Iteration-in-R-tp4154433p4154479.html
>>> Sent from the R help mailing list archive at Nabble.com.
>>>
>>> __
>>> R-help@ 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.
>>>
>>
>>       [[alternative HTML version deleted]]
>>
>> __
>> R-help@ 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.
>>
>
>
> --
> View this message in context: 
> http://r.789695.n4.nabble.com/Iteration-in-R-tp4154433p4154559.html
> Sent from the R help mailing list archive at Nabble.com.
>
> __
> R-help@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.

__
R-help@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.

Re: [R] Iteration in R

[R. Michael Weylandt]

And with replicate:

replicate(100, rnorm(100, 1,2), simplify = FALSE)


Michael

On Sat, Dec 3, 2011 at 2:38 PM, andrija djurovic  wrote:
> Hi Brad. Maybe something like this:
>
> lapply(rep(1,6), function(x) rnorm(10,0,1))
>
> Andrija
>
> On Sat, Dec 3, 2011 at 8:21 PM, B77S  wrote:
>
>> Hi Michael,
>> How would you do this with lapply to return a list?
>> I can't seem to get that to work (I haven't used these much and am trying
>> to
>> learn).
>> Thanks
>> Brad
>>
>>
>> Michael Weylandt wrote
>> >
>> > ? replicate
>> >
>> > or a for loop
>> >
>> > or do all one hundred simulations at once
>> >
>> > x <- matrix(rnorm(100^2, 1, 2), 100)
>> >
>> > It's going to depend on what you want to do with the numbers.
>> >
>> > Michael
>> >
>> > On Sat, Dec 3, 2011 at 1:10 PM, Martin Zonyrah 
>> wrote:
>> >> Hi,
>> >> I need help. I am trying to iterate this command  x <- rnorm(100, 1.0,
>> >> 2.0) one hundred times in R but I don't seem to have a clue.
>> >> Can anyone help?
>> >> Your help is very much appreciated.
>> >>
>> >> Martin
>> >>
>> >>        [[alternative HTML version deleted]]
>> >>
>> >>
>> >> __
>> >> R-help@ 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.
>> >>
>> >
>> > __
>> > R-help@ 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.
>> >
>>
>>
>> --
>> View this message in context:
>> http://r.789695.n4.nabble.com/Iteration-in-R-tp4154433p4154479.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> __
>> R-help@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.
>>
>
>        [[alternative HTML version deleted]]
>
> __
> R-help@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.

__
R-help@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.

Re: [R] Iteration in R

[B77S]

Interesting and thank you; I'm confused as to why this doesn't work with: 

lapply(rep(1,6), FUN=rnorm, n=10, mean=1.0, sd=1) 



andrija djurovic wrote
> 
> Hi Brad. Maybe something like this:
> 
> lapply(rep(1,6), function(x) rnorm(10,0,1))
> 
> Andrija
> 
> On Sat, Dec 3, 2011 at 8:21 PM, B77S  wrote:
> 
>> Hi Michael,
>> How would you do this with lapply to return a list?
>> I can't seem to get that to work (I haven't used these much and am trying
>> to
>> learn).
>> Thanks
>> Brad
>>
>>
>> Michael Weylandt wrote
>> >
>> > ? replicate
>> >
>> > or a for loop
>> >
>> > or do all one hundred simulations at once
>> >
>> > x <- matrix(rnorm(100^2, 1, 2), 100)
>> >
>> > It's going to depend on what you want to do with the numbers.
>> >
>> > Michael
>> >
>> > On Sat, Dec 3, 2011 at 1:10 PM, Martin Zonyrah 
>> wrote:
>> >> Hi,
>> >> I need help. I am trying to iterate this command  x <- rnorm(100, 1.0,
>> >> 2.0) one hundred times in R but I don't seem to have a clue.
>> >> Can anyone help?
>> >> Your help is very much appreciated.
>> >>
>> >> Martin
>> >>
>> >>[[alternative HTML version deleted]]
>> >>
>> >>
>> >> __
>> >> R-help@ 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.
>> >>
>> >
>> > __
>> > R-help@ 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.
>> >
>>
>>
>> --
>> View this message in context:
>> http://r.789695.n4.nabble.com/Iteration-in-R-tp4154433p4154479.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> __
>> R-help@ 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.
>>
> 
>   [[alternative HTML version deleted]]
> 
> __
> R-help@ 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.
> 


--
View this message in context: 
http://r.789695.n4.nabble.com/Iteration-in-R-tp4154433p4154559.html
Sent from the R help mailing list archive at Nabble.com.

__
R-help@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.

Re: [R] Iteration in R

[andrija djurovic]

Hi Brad. Maybe something like this:

lapply(rep(1,6), function(x) rnorm(10,0,1))

Andrija

On Sat, Dec 3, 2011 at 8:21 PM, B77S  wrote:

> Hi Michael,
> How would you do this with lapply to return a list?
> I can't seem to get that to work (I haven't used these much and am trying
> to
> learn).
> Thanks
> Brad
>
>
> Michael Weylandt wrote
> >
> > ? replicate
> >
> > or a for loop
> >
> > or do all one hundred simulations at once
> >
> > x <- matrix(rnorm(100^2, 1, 2), 100)
> >
> > It's going to depend on what you want to do with the numbers.
> >
> > Michael
> >
> > On Sat, Dec 3, 2011 at 1:10 PM, Martin Zonyrah 
> wrote:
> >> Hi,
> >> I need help. I am trying to iterate this command  x <- rnorm(100, 1.0,
> >> 2.0) one hundred times in R but I don't seem to have a clue.
> >> Can anyone help?
> >> Your help is very much appreciated.
> >>
> >> Martin
> >>
> >>[[alternative HTML version deleted]]
> >>
> >>
> >> __
> >> R-help@ 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.
> >>
> >
> > __
> > R-help@ 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.
> >
>
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/Iteration-in-R-tp4154433p4154479.html
> Sent from the R help mailing list archive at Nabble.com.
>
> __
> R-help@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.
>

[[alternative HTML version deleted]]

__
R-help@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.

Re: [R] Iteration in R

[B77S]

Hi Michael, 
How would you do this with lapply to return a list?
I can't seem to get that to work (I haven't used these much and am trying to
learn).
Thanks
Brad


Michael Weylandt wrote
> 
> ? replicate
> 
> or a for loop
> 
> or do all one hundred simulations at once
> 
> x <- matrix(rnorm(100^2, 1, 2), 100)
> 
> It's going to depend on what you want to do with the numbers.
> 
> Michael
> 
> On Sat, Dec 3, 2011 at 1:10 PM, Martin Zonyrah  wrote:
>> Hi,
>> I need help. I am trying to iterate this command  x <- rnorm(100, 1.0,
>> 2.0) one hundred times in R but I don't seem to have a clue.
>> Can anyone help?
>> Your help is very much appreciated.
>>
>> Martin
>>
>>        [[alternative HTML version deleted]]
>>
>>
>> __
>> R-help@ 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.
>>
> 
> __
> R-help@ 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.
> 


--
View this message in context: 
http://r.789695.n4.nabble.com/Iteration-in-R-tp4154433p4154479.html
Sent from the R help mailing list archive at Nabble.com.

__
R-help@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.

Re: [R] Iteration in R

[andrija djurovic]

Hi. One approach is using replicate. See ?replicate:

replicate(3,rnorm(100,1,2))

Andrija

On Sat, Dec 3, 2011 at 7:10 PM, Martin Zonyrah wrote:

> Hi,
> I need help. I am trying to iterate this command  x <- rnorm(100, 1.0,
> 2.0) one hundred times in R but I don't seem to have a clue.
> Can anyone help?
> Your help is very much appreciated.
>
> Martin
>
>[[alternative HTML version deleted]]
>
>
> __
> R-help@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.
>
>

[[alternative HTML version deleted]]

__
R-help@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.

Re: [R] Iteration in R

[David Winsemius]

On Dec 3, 2011, at 1:10 PM, Martin Zonyrah wrote:


Hi,
I need help. I am trying to iterate this command  x <- rnorm(100,  
1.0, 2.0) one hundred times in R but I don't seem to have a clue.


?replicate




==

David Winsemius, MD
West Hartford, CT

__
R-help@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.

Re: [R] Iteration in R

[R. Michael Weylandt]

? replicate

or a for loop

or do all one hundred simulations at once

x <- matrix(rnorm(100^2, 1, 2), 100)

It's going to depend on what you want to do with the numbers.

Michael

On Sat, Dec 3, 2011 at 1:10 PM, Martin Zonyrah  wrote:
> Hi,
> I need help. I am trying to iterate this command  x <- rnorm(100, 1.0, 2.0) 
> one hundred times in R but I don't seem to have a clue.
> Can anyone help?
> Your help is very much appreciated.
>
> Martin
>
>        [[alternative HTML version deleted]]
>
>
> __
> R-help@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.
>

__
R-help@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.

[R] Iteration in R

[Martin Zonyrah]

Hi,
I need help. I am trying to iterate this command  x <- rnorm(100, 1.0, 2.0) one 
hundred times in R but I don't seem to have a clue.
Can anyone help?
Your help is very much appreciated.

Martin

[[alternative HTML version deleted]]

__
R-help@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.