Re: [R] simulation study using R

From: Davood Tofighi <dtofighi_at_asu.edu>
Date: Mon, 03 Mar 2008 21:04:13 -0700

Thanks for your reply. For each condition, I will have a matrix or data frames of 1000 rows and 4 columns. I also have a total of 64 conditions for now. So, in total, I will have 64 matrices or data frames of 1000 rows and 4 columns. The format of data I would like to store would be data frames or matrices. I also would like to store the data for later use, e.g., a plot of the empirical distribution of the chi^2, or to compute the power of Chi^2 across 1000 reps for each condition.

On Mon, Mar 3, 2008 at 7:03 PM, jim holtman <jholtman_at_gmail.com> wrote:

> What is the format of the data you are storing (single value,
> multivalued vector, matrix, dataframe, ...)? This will help formulate
> a solution. What do you plan to do with the data? Are you going to
> do further analysis, write it to flat files, store it in a data base,
> etc.? How big are the data objects you are manipulating?
>
> On Mon, Mar 3, 2008 at 7:05 PM, Davood Tofighi <dtofighi_at_asu.edu> wrote:
> > Dear All,
> >
> > I am running a Monte Carlo simulation study and have some questions on
> how
> > to manage data storage efficiently at the end of each 1000 replication
> loop.
> > I have three conditions coded using the FOR {} loops and a FOR loop that
> > generates data for each condition, performs analysis, and computes a
> > statistic 1000 times. Therefore, for each condition, I will have 1000
> > statistic values. My question is what's the best way to store the 1000
> > statistic for each condition. Any suggestion on how to manage such
> > simulation studies is greatly appreciated.
> > Thanks,
> >
> > --
> > Davood Tofighi
> > Department of Psychology
> > Arizona State University
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > 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 you are trying to solve?
>

-- 
Davood Tofighi
Department of Psychology
Arizona State University
P.O. BOX 871104
Tempe, AZ 85287-1104
Tel.:480-727-7884

	[[alternative HTML version deleted]]

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Received on Tue 04 Mar 2008 - 04:11:40 GMT

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