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Thx Petr. It worked likea charm. Regards.
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Dear all, I have three vectors "x<-1:n", "y<-1:m" and "z<-2:(n+m)". I need to find all combinations of "x" and "y" that add up a given value of "z", e.g., for "z==3...
Dear all, I have been trying to speed up a process we have been done in ArcGIS. We have to read a single layer TIFF (monochrome image) in . For this, I have used the "rtiff" package. After reading the TIFF...
Dear all, I have been working in a plot based on figure 5.6 of the Lattice book (http://lmdvr.r-forge.r-project.org/figures/figures.html). I have already modified it to include the size of the circles...
Dear all, I have been working in a plot based on figure 5.6 of the Lattice book (http://lmdvr.r-forge.r-project.org/figures/figures.html). I have already modified it to include the size of the circles...
Dear @ll. I have to calculate numerical integrals for triangular and trapezoidal figures. I know you can calculate the exactly, but I want to do it this way to learn how to proceed with more complicated shapes. The code I...
Thanks Uwe. I totally understood the problem. BTW, in your code you forgot to define "reduce". Can you define it in the function? If the file has different minimum as well as maximum levels from this one, will it work...
Thanks a lot William. I'm sorry about the syntax problem. I was working at the same time with R code and a document, so I copied from the wrong document. I saw that I had a problem with the...
Dear Uwe, find attached an small portion of the file I'm working with. ArcGIS values for this file are in the CSV file. They are a vector of all rows put together. Thanks and regards. --- El vie, 4/22...
Dear all. I have to plot a the marginal population density for a heat map that represents the population density of a city. I have been able to plot the heat map in the lower left corner, the marginal density...
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