similar to: new version of package water: Actual Evapotranspiration with Energy Balance Models

Hello everyone! I am using GRASS with spgrass6 for my work. I will be using variograms in the process of landsat image classification. I am quite ok with GRASS but am finding R really tough. I understand that spgrass6 is a link between GRASS and R which can read and write raster/vector layers. Out of really many packages in R, for generating variograms out of landsat images which packages of R

I am attempting to classify pixels from a Landsat image by using their associated numbers in bands 2, 3, and 4 (It's from an assignment on classification). To aid me, I want to create a 3-D scatterplot using the "cloud" command. Due to my ignorance of the finer plotting functions, I am unable to display the scale on the three axes or to display the grid. My dataframe (RS)

Hello, I hope you can help me! I`m trying to tune svm parameters: cost and gamma for a landsat image classification, but I get an error and I can't understand it. I write this: > tune(svm, Class~., data = mdt01bis, ranges = list(gamma = 2^(-15:3), cost > = 2^(-5:15))) and R gives: Error en predict.svm(model, if (!is.null(validation.x)) validation.x else if (useFormula)

My Dom0 is setup very minimally as a Debian 5/Lenny. I see the current Xen package is 3.2-1, and I''d like to get the current 3.3.1 for the better VT support for HVMs. Does anyone out there have packages for this, as I''d rather not bulk up my Dom0 with the whole GCC toolchain necessary to compile 3.3.1. Thanks in advance. -- Chris ''Xenon'' Hanson, omo sanza

Greetings! Is there in any package for R which can help me generate madogram, rodogram, semi-variogram, cross variogram from landsat imagery. I intend to select portions of large imagery (i.e., obtain subsets) and generate the above said texture layers. A simple Google search led to me a result suggesting SpatialExtremes for generating madograms. However I am not sure about its capability to

Dear R users I am currently investigating time series analysis using an irregular time series. Our study is looking at vegetation change in areas of alien vegetation growth after clearing events. The irregular time series is sourced from Landsat ETM+ data, over a six year period I have 38 scenes. For certain periods I have monthly data while for others, images are up to three months apart. So far

Dear R makers and users. I summarize answers to my question. Thanks for your help. The conclusion seems to be that, in terms of performance with large datasets, Matlab=Octave > R > Splus5.1 > Splus5.0 but Matlab/Octave lack many of the stat functions of R/S, and, R does not have as many time-series functions as S+ (but see last message to r-announce by adrian.trapletti at

I have a bit of a Xen theory question. I have a Debian 5 Lenny x64 Dom0 currently running two DomUs. One is an x64 built via Xen-tools, and it seems to be running great. The second (known as Alpha) is having some troubles, as I mentioned in my post "Ubuntu 8.04 DomU crash" to this list on 5/12/09. It is an x86/32 Ubuntu 8.04 that started life as an HVM and was rebuilt into a PV where

I'd appreciate advice on the following: I've written an R function that uses 3 vectors (temperature, precipitation and potential evapotranspiration) for a given site, calculates a water budget (which implies few (<4) iterations), and, from thresults of this water budget, calculates a number of bioclimatic indices. Now I want to calculate these indices for a large number of sites

Hi,Has anybody worked with thornthwaite method to calculate the daily evapotranspiration ? I have used the following code to calculate monthly evaporation but what I need is daily evapotranspiration. Epot <- thornthwaite(Tave, lat, na.rm = FALSE) # Evaluates evapotranspiration for each month. Do you have any code which works for daily timestep ? Its more technical question, may be some

Dear Colleague, Our journal, European Water Management, the official journal of the European Water Association (EWA), has started a free e-mail news service. If you subscribe, you get weekly a mail with press releases, etc. concerning water (management, research, policy, industry, etc.). It is completely free for all people working in the water sector in its broadest sense. Older issues of

Dear Colleague, Our journal, European Water Management, the official journal of the European Water Association (EWA), has started a free e-mail news service. If you subscribe, you get weekly a mail with press releases, etc. concerning water (management, research, policy, industry, etc.). It is completely free for all people working in the water sector in its broadest sense. Older issues of

Hello, I love the work that is being done with compiz! I have made a patch for water.c that makes the time between rain-drops adjustable using gconf. This way you can leave the plug-in running and just have pleasant drops every now and then instead of the rainstorm that is hard-coded in now (which is still fun now and then!). The gconf value is in ms (1/1000 of a second). Suggestions for

Hi, I had a look at some problems I saw in the Water plugin. Here are the patches fixing those. The file names should be self-descriptive. Regards, Erkin -------------- next part --------------

Hello, I noticed that the control+super key kombi no longer works with the rain plugin.. I went to check why and found out that its disabled in gconf. so I tryed to change it back to <Control><Super> (which is the default) but it changes itself back to disabled... any idea why?

I have Wine 1.1.38 installed on Fedora 13 x64. I cannot install Dangerous Waters. After executing 'wine Autorun.exe from the mounted CD the initial splash screen comes up. I select 'install' and it beings installshield. Installshield asks me to insert disc #1. Obviously disk 1 is inserted, but it will also not allow me to change the path to the setup folder it is looking for. It

I have a small leak coming from my black water connection at the tank. I will try to describe what I have. The leak is where the 3 pipe comes out of the tank. It appears to have plumbers putty and then it is clamped. The biggest problem is space to repair it. The shut off valve is only about 3 inches from the tank and after the valve it makes a 180 degree turn. It then has a long straight run to

So Tomb Raider Anniversary is my first official attempt at a port of my own. I chose TRA because not only do i love the TR series, but i also wanted to port a game i knew for sure was capable of being ported - meaning i checked in the App DB to make sure it ran at Gold/ Platinum levels of performance. I downloaded the Windows demo installer (i didn't want to buy the game until i could at

Dear all; I have a question about the water level of a reservoir, when the volume changed or doubled. There is a DEM file with the highest elevation 1267 m. The lowest elevation is 1230 m. The current volume of the reservoir is 7,000,000 m3 at 1240 m. Now I want to know what would be the water level if the volume rises to 1250 m? or what would be the water level if the volume doubled (14,000,000

Hello, You have a '{' too many. for(i in 1972:1985){ if(DF$year==i & DF$month %in% 1:9){ DF$wyear <- i }else{ DF$wyear < i-1 } } } I believe this is it. Hope this helps, Rui Barradas Em 04-07-2017 19:31, lily li escreveu: > Hi R users, > I have a question about adding a column for water year. The dataframe has > the