search for: esvalab

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2017 Jun 26
0
Model studies in one analysis using treatment as a five level moderator in a meta-regression
...MN| 6| 31| 0,1935484| > > Aita| Complications| IMN| 1| 16| 0,0625| > > Dremstrop| Complications| IMN| 17| 44| 0,3863636| > > Wong| Complications| PC| 1| 30| 0,0333333| > > Kumaravel| Complications| PC| 4| 25| 0,16| > > > Dataset on my dropbox: > https://urlsand.esvalabs.com/?u=https%3A%2F%2Fwww.dropbox.com%2Fs%2Fj1urqzr99bt76ip%2FBasics%2520excel%2520file%2520complication%2520and%2520reoperation%2520rate.xlsx%3Fdl%3D0&e=541e9c83&h=065e9ef9&f=y > > Basics excel file complication and reoperation > rate.xlsx<https://urlsand.esvalabs.com/?u=...
2017 Jun 26
1
Model studies in one analysis using treatment as a five level moderator in a meta-regression
...ta| Complications| IMN| 1| 16| 0,0625| >> >> Dremstrop| Complications| IMN| 17| 44| 0,3863636| >> >> Wong| Complications| PC| 1| 30| 0,0333333| >> >> Kumaravel| Complications| PC| 4| 25| 0,16| >> >> >> Dataset on my dropbox: https://urlsand.esvalabs.com/?u=https%3A%2F%2Fwww.dropbox.com%2Fs%2Fj1urqzr99bt76ip%2FBasics%2520excel%2520file%2520complication%2520and%2520reoperation%2520rate.xlsx%3Fdl%3D0&e=541e9c83&h=065e9ef9&f=y >> >> Basics excel file complication and reoperation rate.xlsx<https://urlsand.esvalabs.com/?...
2017 Jun 26
3
Model studies in one analysis using treatment as a five level moderator in a meta-regression
Hello, I am medical student, writing a meta-analysis on complication and reoperation rates after the five most common treatments of distal radius fractures. I have been busy with the statistics for months by my self, but find it quite hard since our classes were very basic. Now I want to compare the treatment modalities to see if there are significant differences. Using R I was able to
2018 Mar 21
0
Sum of columns of a data frame equal to NA when all the elements are NA
On 21/03/2018 11:44 AM, Stefano Sofia wrote: > Dear list users, > let me ask you this trivial question. I worked on that for a long time, by now. > Suppose to have a data frame with NAs and to sum some columns with rowSums: > > df <- data.frame(A = runif(10), B = runif(10), C = rnorm(10)) > df[1, ] <- NA > rowSums(df[ , which(names(df) %in%
2018 Mar 21
5
Sum of columns of a data frame equal to NA when all the elements are NA
Dear list users, let me ask you this trivial question. I worked on that for a long time, by now. Suppose to have a data frame with NAs and to sum some columns with rowSums: df <- data.frame(A = runif(10), B = runif(10), C = rnorm(10)) df[1, ] <- NA rowSums(df[ , which(names(df) %in% c("A","B"))], na.rm=T) If all the elements of the selected columns are NA, rowSums