On Jun 19, 2009, at 10:25 AM, Alexandre Lockhart wrote:
My other question involved formatting my output. Normally, my text
file has 8 columns, each column with 500 values before the next 8
below are generated, and so on until 28 are reached. I have
examined formatting issues with each f
[1], x[2]))
sink()
> From: marc_schwa...@me.com
> To: jholt...@gmail.com
> Date: Thu, 18 Jun 2009 15:23:06 -0500
> CC: r-help@r-project.org; alexandre_geor...@hotmail.com
> Subject: Re: [R] Random number datasets help
>
> Quite true Jim, however I focused on his request and not hi
You're absolutely right, Marc.
Thanks
> From: marc_schwa...@me.com
> To: jholt...@gmail.com
> Date: Thu, 18 Jun 2009 15:23:06 -0500
> CC: r-help@r-project.org; alexandre_geor...@hotmail.com
> Subject: Re: [R] Random number datasets help
>
> Quite true Jim, howeve
Quite true Jim, however I focused on his request and not his code,
presuming that he did not realize what he was doing as a consequence
of the nested loops.
Perhaps Alexandre can provide clarification?
Regards,
Marc
On Jun 18, 2009, at 2:46 PM, jim holtman wrote:
That is not what his 'for
That is not what his 'for' loops are doing. He is iterating through all
combinations and would have created 784. So his problem statement did not
match the code that he sent.
On Thu, Jun 18, 2009 at 2:12 PM, Marc Schwartz wrote:
> Alexandre did say 28 datasets, not 784 (28 * 28)
>
> Thus,
On Jun 18, 2009, at 1:10 PM, Alexandre Lockhart wrote:
Hello:
My problem is that I have a data frame of means, and a data frame of
standard deviations which match up to each mean. I have been trying
to create 500 random numbers in a given dataset for each mean/sd
combination, but I am
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
> Behalf Of Henrique Dallazuanna
> Sent: Thursday, June 18, 2009 10:52 AM
> To: Alexandre Lockhart
> Cc: r-help@r-project.org
> Subject: Re: [R] Random number datasets he
Alexandre did say 28 datasets, not 784 (28 * 28)
Thus, either:
mapply(rnorm, n = 500, mean = a1, sd = a2)
or
apply(cbind(a1, a2), 1, function(x) rnorm(500, x[1], x[2]))
HTH,
Marc Schwartz
On Jun 18, 2009, at 12:51 PM, Henrique Dallazuanna wrote:
Try this also:
a <- expand.grid(a
Try this also:
a <- expand.grid(a1, a2)
x <- mapply(rnorm, n = 500, mean = a[,1], sd = a[,2])
On Thu, Jun 18, 2009 at 2:10 PM, Alexandre Lockhart <
alexandre_geor...@hotmail.com> wrote:
>
> Hello:
>
> My problem is that I have a data frame of means, and a data frame of
> standard deviations whic
try this:
>
a1<-c(178.07,178.28,178.08,177.74,177.04,178.17,177.58,57.71,59.6,60.92,59.48,59.32,61.59,59.94,28.9,29.82,30.73,25.68,27.93,28.98,29.76,123.48,127.27,127.8,127.2,127.13,126.71,125.5)
>
a2<-c(1.69,1.3,1,.18,1.53,1.31,1.35,1.83,1.56,1.12,.74,1.48,1.67,1.53,.95,.87,0.03,1.12,1.95,1.22,1.
Hello:
My problem is that I have a data frame of means, and a data frame of standard
deviations which match up to each mean. I have been trying to create 500
random numbers in a given dataset for each mean/sd combination, but I am only
able to generate the last value in each data set to creat
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