search for: michael_nielsen

Displaying 3 results from an estimated 3 matches for "michael_nielsen".

2002 Jan 16
2
Subsetting data frames without a loop
I KNOW this should be easy, but I'm stuck. My data frame consists of multiple observations from each of a number of stations, and what I would like to do is create another data frame that contains all the variables of the first, but only rows where a certain variable is at its maximum for the station. So, for example: > my.df stn obs v 1 1 1 0.26400396 2 2 1
2002 Feb 07
12
R graphs in LaTeX documents?
I have tried to find a neat way to include graphs from R in LaTeX documents, but have not succeeded (I work with a WinEdt/MikTeX combination). The two roads I have stumbled along so far are the following: *Generate postscript files and convert them into EPS files by means of GhostScript or other not so straightforward tools. *Generate pictex files and include these. None of these solutions have
2002 Jul 09
0
Re: Candid comment
<soap-box> While I agree with John about abuse of methodology, I can't subscribe to the "failure to read the manual" proposition. I don't mean to lecture, but it would seem to me that people who, like me, will probably gain far more from this list than we will be able to contribute (at least in the near term) owe it to those who will likely contribute far more than they