Re: [R] Select subset with specific distribution parameters.
I'm sorry, an example needed a lot of data, hence I skipped it. I've settled for taking random sets from within a defined range to simulate the potential distributions and to calculate a rough significance value from that... Thanks for your help. -- View this message in context: http://www.nabble.com/Select-subset-with-specific-distribution-parameters.-tp24848201p24891867.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] Select subset with specific distribution parameters.
Could you provide a reproducible example? On Thu, Aug 6, 2009 at 10:59 AM, sedm1000 wrote: > > This may be a simple problem, but I am looking to select a subset of rows > from a dataframe that will have the same parameters as all the rows in > another dataframe. > > e.g. I have a 500 row dataframe with 20 columns. I want to select a subset > of rows from a larger dataframe that match the distribution of values for > one or more of the columns within the 500 row dataframe (i.e. within same > range, but also having same mean/median and overall shape). > > By basic subsetting I can get a set with a similar approximate distribution > to the 500 row dataset, but not highly similar, and this might be a problem > for the analysis. Any help would be much appreciated, thanks. > > -- > View this message in context: > http://www.nabble.com/Select-subset-with-specific-distribution-parameters.-tp24848201p24848201.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. > -- Stephen Sefick Let's not spend our time and resources thinking about things that are so little or so large that all they really do for us is puff us up and make us feel like gods. We are mammals, and have not exhausted the annoying little problems of being mammals. -K. Mullis __ 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] Select subset with specific distribution parameters.
This may be a simple problem, but I am looking to select a subset of rows from a dataframe that will have the same parameters as all the rows in another dataframe. e.g. I have a 500 row dataframe with 20 columns. I want to select a subset of rows from a larger dataframe that match the distribution of values for one or more of the columns within the 500 row dataframe (i.e. within same range, but also having same mean/median and overall shape). By basic subsetting I can get a set with a similar approximate distribution to the 500 row dataset, but not highly similar, and this might be a problem for the analysis. Any help would be much appreciated, thanks. -- View this message in context: http://www.nabble.com/Select-subset-with-specific-distribution-parameters.-tp24848201p24848201.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.
