Hello everyone I have some studies with results from the same outcome scale. I want to merge them into 1 summarised estimated result and its standard deviation. How do I do that in R? Thank you very much for your help! Frederik
how to summarize results from studies?
6 messages · Michael Dewey, Frederik Feys, Marc Schwartz
Hi, It sounds like you will want to engage in a meta-analysis. There is a CRAN task view here: https://cran.r-project.org/web/views/MetaAnalysis.html that would be relevant in pointing you to tools in R that can support that approach. That being said, the details of specific methodologies and conceptual assistance would be beyond the scope of this list. You should consider consulting a local statistician for assistance with that, if needed. Regards, Marc Schwartz
On Jul 1, 2020, at 11:27 AM, Frederik Feys <frefeys at gmail.com> wrote: Hello everyone I have some studies with results from the same outcome scale. I want to merge them into 1 summarised estimated result and its standard deviation. How do I do that in R? Thank you very much for your help! Frederik
Dear Frederik There is also a mailing list dedicated to meta-analysis in R https://stat.ethz.ch/mailman/listinfo/r-sig-meta-analysis// Michael
On 01/07/2020 16:40, Marc Schwartz via R-help wrote:
Hi, It sounds like you will want to engage in a meta-analysis. There is a CRAN task view here: https://cran.r-project.org/web/views/MetaAnalysis.html that would be relevant in pointing you to tools in R that can support that approach. That being said, the details of specific methodologies and conceptual assistance would be beyond the scope of this list. You should consider consulting a local statistician for assistance with that, if needed. Regards, Marc Schwartz
On Jul 1, 2020, at 11:27 AM, Frederik Feys <frefeys at gmail.com> wrote: Hello everyone I have some studies with results from the same outcome scale. I want to merge them into 1 summarised estimated result and its standard deviation. How do I do that in R? Thank you very much for your help! Frederik
______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
Thank you Marc! I ended up using metafor library: res_UK <- escalc(mi=data_UK$GAD.7_mean, sdi=data_UK$weight_pred, ni=data_UK$GAD.7_mean_N, measure = "MN?) rma(yi, vi, data=res_UK, method="REML?)
Op 1 jul. 2020, om 17:40 heeft Marc Schwartz <marc_schwartz at me.com> het volgende geschreven: Hi, It sounds like you will want to engage in a meta-analysis. There is a CRAN task view here: https://cran.r-project.org/web/views/MetaAnalysis.html that would be relevant in pointing you to tools in R that can support that approach. That being said, the details of specific methodologies and conceptual assistance would be beyond the scope of this list. You should consider consulting a local statistician for assistance with that, if needed. Regards, Marc Schwartz
On Jul 1, 2020, at 11:27 AM, Frederik Feys <frefeys at gmail.com> wrote: Hello everyone I have some studies with results from the same outcome scale. I want to merge them into 1 summarised estimated result and its standard deviation. How do I do that in R? Thank you very much for your help! Frederik
Thank you Michael!
Op 1 jul. 2020, om 19:07 heeft Michael Dewey <lists at dewey.myzen.co.uk> het volgende geschreven: Dear Frederik There is also a mailing list dedicated to meta-analysis in R
https://stat.ethz.ch/mailman/listinfo/r-sig-meta-analysis// Michael On 01/07/2020 16:40, Marc Schwartz via R-help wrote: Hi, It sounds like you will want to engage in a meta-analysis. There is a CRAN task view here: https://cran.r-project.org/web/views/MetaAnalysis.html that would be relevant in pointing you to tools in R that can support that approach. That being said, the details of specific methodologies and conceptual assistance would be beyond the scope of this list. You should consider consulting a local statistician for assistance with that, if needed. Regards, Marc Schwartz On Jul 1, 2020, at 11:27 AM, Frederik Feys <frefeys at gmail.com> wrote: Hello everyone I have some studies with results from the same outcome scale. I want to merge them into 1 summarised estimated result and its standard deviation. How do I do that in R? Thank you very much for your help! Frederik ______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see 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. -- Michael http://www.dewey.myzen.co.uk/home.html
Michael, Thanks for the reminder on that. Frederik, sometimes, with an emphasis on sometimes, the r-sig-* lists are willing to go beyond narrow R programming assistance, and offer domain specific conceptual assistance, which would otherwise be off-topic for r-help. You might look through the archives of that list to get a sense for the subject matter that has been covered there: https://stat.ethz.ch/pipermail/r-sig-meta-analysis/ <https://stat.ethz.ch/pipermail/r-sig-meta-analysis/> I might also mention that a Google search using "meta analysis in R", comes up with a number of relevant hits, including various tutorials. Regards, Marc
On Jul 1, 2020, at 1:07 PM, Michael Dewey <lists at dewey.myzen.co.uk> wrote: Dear Frederik There is also a mailing list dedicated to meta-analysis in R
https://stat.ethz.ch/mailman/listinfo/r-sig-meta-analysis// Michael On 01/07/2020 16:40, Marc Schwartz via R-help wrote: Hi, It sounds like you will want to engage in a meta-analysis. There is a CRAN task view here: https://cran.r-project.org/web/views/MetaAnalysis.html that would be relevant in pointing you to tools in R that can support that approach. That being said, the details of specific methodologies and conceptual assistance would be beyond the scope of this list. You should consider consulting a local statistician for assistance with that, if needed. Regards, Marc Schwartz On Jul 1, 2020, at 11:27 AM, Frederik Feys <frefeys at gmail.com> wrote: Hello everyone I have some studies with results from the same outcome scale. I want to merge them into 1 summarised estimated result and its standard deviation. How do I do that in R? Thank you very much for your help! Frederik ______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see 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. -- Michael http://www.dewey.myzen.co.uk/home.html