similar to: merge large number of raster objects

Hi all, Suppose I want to set the values in a column to the log of the values of another column like so: object$LogDist <- log10(object$Distance) How do I loop through the objects if I have object1, object2, etc to perform this function? object1$LogDist <- log10(object1$Distance) object2$LogDist <- log10(object2$Distance) object3$LogDist <- log10(object3$Distance) I was trying to

? Fri, 23 Aug 2024 10:15:55 +0200 <sibylle.stoeckli at gmx.ch> ?????: > > s<-sf$Unterregio > > r<-allrasters_pres[[1]] > > > > > > rs <- stack(r, s) > > names(rs) <- c('r', 's') > Error in `names<-`(`*tmp*`, value = c("r", "s")) : > incorrect number of layer names It looks like at least one

Dear Ivan Dear community Quite nice book recommendation. Yes indeed my raster "s" (the shape file for the boxplot classes) has several layers. That's way I tried to select a layer by " s<-sf$Unterregio". > sf <- read_sf("C:/Users/....._BiogeoRegion.shp") > names(sf) > names(sf) [1] "RegionNumm" "RegionName"

Hi, I don't think this is a remote desktop issue. I can run the following code by remoting into both a Windows 7 machine and a Windows Server R2 machine. I can see the results on the Windows 7 machine but not the server. > library(grid) > grid.raster(1:10/11) Best regards, Terry Terry Seaward Risk Manager T +27 21 416 1923 terry.seaward@investecmail.com 36 Hans Strijdom

Dear all, I intend to do some statistics with my raster table, like correlations or regression analysis. For that, I need that each pixel be in one line, that is, there is no count > 1. So, all columns should have the same number of lines, when I compare (combine) rasters. I'd like to know if there is a way to create lines and copy the values of the lines, when count is > 1. So, even

I have 12 binary (raster) files https://echange-fichiers.inra.fr/get?k=k3M2jatJyHy65Cs99G4 . I would like to calculate the moving average for the 12 values for each pixel in the 12 files. For a simple vector we can get a moving average by using this : x <- c(1,2,3,NA,NA,4,6,5,6,4,2,5) movingmean <- rollapply(x, 3, FUN = mean, na.rm = T) now I want

Dear community I have two raster files (here r and r2: y-axis) and an equal x-axis (here s, 4 classes). Instead of plotting two boxplots I would like to plot paired boxplots: for each class the boxplots from r and r2 paired). I tried to adapt the code, but I am struggling around with the error: > names(rs) <- c('r', 's', 'r2') Error in `names<-`(`*tmp*`,

Dear Ivan Many thanks. Using my own dataset, my "s" is a layer shape file. Somewhere I need to define : snew<-s$Unterregio I tried it to do it before stack(), but it seems to be the wrong way. Do you have any suggestion? Code: > #first import all files in a single folder as a list > rastlist_pres <- list.files(path ="C:/Users/....._bee_presence",

Hi, A colleague recently came across an R crash, which I can boil down to the following, running under Rgui on Windows 7: library(ggplot2) ggplot(data.frame(x=1, y=1, z=4.7), aes(x, y, z=z)) + stat_summary2d() This reliably causes a segmentation fault. sessionInfo() below. What's happening is that (for reasons which I'll discuss with the ggplot2 developers) the 'colorbar'

This code will read binary file and display it as a map. may problem is that this code is using a continuous colour scheme, even though I have discrete data (which is a classification scheme). How can I map numbers to colours with raster? Please require(raster) conne <- file("C:\\lai.bin", "rb") sd<- readBin(conne, integer(), size=1, n=360*720, signed=F)

I need a single boolean which would be "globally" accessible to all instances of a class. Seems like the boolean should be in the class prototype, but I was troubled by the difficulty of setting the prototype boolean to true. Maybe I''m missing something? var MyObject = Class.create(); MyObject.prototype = { bSwitch: false, ... other methods and properties } var oMyOb1

Hi all, I am very new to Ruby and I have a silly question: how do I get RoR to "recognize" that I just defined a class? To be more explicit, I have a controller and view, and then I want to create a class and get the controller to "see" it. So, I created a file called "myobject.rb" in the models/ directory and inside it defined "class myobject [...] end".

Dear all, i generated several GLM objects, named myobject1 to myobject25. Now i'd like to update both of them. So i tried: for(ii in 1:25) { assign(paste("myobject.updated", ii, sep=""), update( myobject[ii] ,.~ + VAR2)) } Doesn't work I also tried to get all the names in a vector and update(names.myobject[ii],.~ + VAR2) Stiil doesn't work Any ideas

Hi all, I'm seeking feedback (good, bad or indifferent) in regards to developing (further) a new class system for R, that uses encapsulated class definitions (i.e. the method definitions are literally inside the body of the class definition). A working (however very rough and poorly tested) system is available in my R package "oosp" with documentation in the vignette

Hi R-listers, I am trying to better undertand what we would call "functional paradigm" use of S/R to better map my programming activities in other languages. This little function is aimed to create an object (at the end end, it would have it's own class): -- myObject =function(){ list( a=1, foo=function(b) { cat("b:",b)

In my form I have these items: <%= select_year Date.today, :start_year => Schoolyear.get_startdate.year, :end_year => Schoolyear.get_enddate.year %> <%= select_month Date.today.month %> No matter what I do, in my controller I can''t seem to access the selected year and month. I have tried params[:month].to_s and also

Is there any way to do foo.should (be_nil || be_empty) in rspec. Thanks in advance -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://rubyforge.org/pipermail/rspec-users/attachments/20081104/ee43c9c9/attachment.html>

Dear R users! Several languages like C# or VB allow one to create properties; typically these are under 'get', 'set' tags. My question is this really, what are similar or comparable strategies in R, and what might be preferred? I have a couple of situations where I want a certain computation to belong to a class, but I do not really want to seperate it out to a stand-alone

Hey Cats, I''m having a problem. I''m working with an object that contains a bunch of arrays: var myObject = { "data": [ {"line": [1,"aoo","far"]}, {"line": [2,"boo","ear"]}, {"line": [3,"coo","dar"]}, {"line":

Hello Everyone: As usual, thanks in advance for any help. I was hoping to get some more advice on this question: I'm trying to write a subsetting routine for an S3 object I've created -- lets call it myObject. myObject has a few attributes basically of type string and numerics. Its atomic value is just a vector of ints. I want to write my own subsetting routine to subset myObject in