search for: _passtec

Displaying 5 results from an estimated 5 matches for "_passtec".

2001 Sep 01
2
interpolation and numerical differentiation in R ?
Hi, I'm trying to determine if R is useful to me. I've browsed 'The Basics of S and S-Plus' (Krause & Olson), and like the logic of the language. However, I don't see an easy way to do things like this: * given a set of observations (x,y) (x and y equal-length vectors), and a 2nd set of abscissas x2, interpolate y at the new abscissas x2. (for now, I don't really
2001 Sep 05
2
Replacing NAs with interpolated values
Hi there, I've got this vector: -84 -87 -90 -90 -89 -86 NA NA NA NA NA NA NA NA NA NA NA NA -96 -99 -100 -99 -96 -92 -89 -87 -87 -88 -90 -92 -94 -95 -96 -97 -97 -97 -96 -95 Is there a function in R which replaces the NAs with "interpolated" values between -86 and -96? Thanks, Sven
2001 Sep 06
2
Array as time series?
Dear R-helpers, I have 4-dimensional atmospheric data (x,y,z,t), which I want to analyse on spatio-temporal diversities. As far as I understand there only exists the possibility to construct time series as two-dimensional matrices (mts). For the moment, I hold it in different objects: 1. a four-dimensional array for the spatial related analyses 2. a two-dimensional mts timeserie, which was
2001 Aug 27
4
plotting dendrograms from cluster analyses
Hi all, I have a bit of a newbie question here that I hope y'all can help with. I've run a cluster analysis using hclust on about 500 objects (using R1.3 under Win 2000). The problem is that the tips of the dendrogram are so close together on the plot that the labels overlap and are unreadable. I've used "cex" to reduce the label sizes but this isn't sufficient with so
2001 May 29
5
Scripting capabilities for R
I'm in the final week of teaching a course to beginners using R and S-Plus. Since I forbade the students from using the "point-and-click" interface in S-Plus, they've become reasonably proficient at using the command line in both programs. Students really like the speed and ease-of-use of R for the vast majority of their projects. I think they'd switch to R completely