[R-meta] Error Stopped because k = 0 after sub setting.
Dear Klaow, You now that R is case-sensitive? That is, see the following: # Set interven <- "pzq" # Then interven=="pzq" # provides [1] TRUE # However, interven=="PZQ" # provides [1] FALSE That is, you have to spell the values in the code exactly as spelled in the data set. Best, Gerta Am 17.09.2022 um 17:06 schrieb Klaow sota:
I apologize?for the messy data from the previous?email. The screenshot photo might be better, I attached. I curious that yi/vi probably get problem and made the error happened. Best, Klaow ------------------------------------------------------------------------ *From:* Michael Dewey <lists at dewey.myzen.co.uk> *Sent:* Saturday, September 17, 2022 7:26 PM *To:* Klaow sota <jija_99 at hotmail.com>; r-sig-meta-analysis at r-project.org <r-sig-meta-analysis at r-project.org> *Subject:* Re: [R-meta] Error Stopped because k = 0 after sub setting?. Dear Klaow Without your data it is hard to be sure. I assume you have checked that the variable interven does indeed contain some values "PZQ"? Michael On 17/09/2022 11:44, Klaow sota wrote:
I have some problems with analysis in subgroup It showed this message: ?? > # fit random-effects model in the three subgroups
res.s <- rma(yi, vi, subset=(interven=="PZQ"),data=dat)
Error: Stopped because k = 0 after sub setting?. How should I fix it? Is it caused from vi, yi? Best regards, Klaow ??????? [[alternative HTML version deleted]]
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Dr. rer. nat. Gerta R?cker, Dipl.-Math. Guest Scientist Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center - University of Freiburg Zinkmattenstr. 6a, D-79108 Freiburg, Germany Mail: ruecker at imbi.uni-freiburg.de Homepage: https://www.uniklinik-freiburg.de/imbi-en/employees.html?imbiuser=ruecker [[alternative HTML version deleted]]