To answer your questions: Yes, yes, and probably no. You will have to pick up any introductory manual of R where questions 1 and 2 will be discussed.
For 1: you index x as in x[452,682]. For 2: there are ways to write (and avoid) loops in R (e.g. for or while loops). Often avoidance is preferable because R is not very fast looping. For 3: I cannot say for sure, but as long as you data is in matrix format or something that can be coerced to it, no. Daniel Tariq wrote: > > Hello, I'm new to this list. Sorry if my question or parts of it already > came up before. > > For my research in geostatistics, I am working with large sets of data in > R (basically large matrices containing discrete x and y coordinates and a > value for a certain parameter). These sets are obtained by kriging. The > operation I'd like to perform is smoothen the output data set. I want to > do it by adding each data point and its 8 surrounding points and dividing > this by nine (gives an average), and then replacing each element in the > matrix with the result. > > Question 1: is there a way to address the parameter value of a single > element (for example, the value for element [x=452, y=682] inside the > matrix) and perform an operation on it in R? > Question 2: is there a way to programm R into a loop, so that the same > operation can be performed on all elements inside the matrix? > Question 3: is it a problem if my data is geodata (made with the geoR > library)? > -- View this message in context: http://r.789695.n4.nabble.com/How-to-smoothen-a-geodata-set-in-R-tp3662902p3663432.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
