search for: nate318i

I am trying to delete a section of rows from a data frame (based on no condition). Lets say my data frame has 200 rows and I want to delete rows 1 through 25. How would I do this? I know x[ -1, ] deletes the first row (or any desired row). I tried using different variations of this, like x[ -c(1:25), ] but that didn't work. I also tried writting a few functions, for example: deleteRows

I'm looking for a function that lists a few summary stats for a column (or row) of data. I'm aware of summary(x), but that does not give me what I'm looking for. I'm actually looking for something that is very similar to the descriptive statistics tool in excel; i.e. Mean, Std. Error, Std. Deviation, Kurtosis. I'm positive that I came across a function that did this (possibly

I'm trying to calculate the percent change for a time-series variable. Basically the first several observations often look like this, x <- c(100, 0, 0, 150, 130, 0, 0, 200, 0) and then later in the life of the variable they're are generally no more 0's. So when I try to calculate the percent change from one observation to the next, I end up with a lot of NA/Nan/INF, and

I'm trying to write R functions into VBA code. I've done this many other times in other documents and everything has run great. But today I keep recieving an error message "Run-time error '1004': Application-defined or object-defined error." Has anyone else encountered this same error message? I do not recieve this error in the document when running regular VBA code.

I have searched through the threads and "Rprintf" causing a build error dosen't seem to be a problem for anyone else. And I've read through "R Extensions" and "An Introduction to the .C Interface to R" and there doesn't seem to be any troubleshooting for my problem. My code is straight from "An Introduction to the .C Interface to R" pg. 3. And