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Hello, I have a question related to recursive partitioning, but I cannot find an answer, likely because I don't know how to properly word my Google search query. All recursive partitioning examples, which I can find, are used for either classification or regression trees like library(tree) data(iris) tree(Species ~ Sepal.Width + Petal.Width, data = iris) which implies building a

Hi there, I have a problem about lapply, strsplit, and accessing list elements, which I don't understand or cannot solve: I have e.g. a character vector with three elements: x = c("349/077,349/074,349/100,349/117", "340/384.2,340/513,367/139,455/128,D13/168", "600/437,128/903,128/904") The task I want to perform, is to generate a list,

...quot; way, not in the math behind the algorithms. Are you looking for something like this? https://rpubs.com/gaston/dendrograms Just please note, that this is very far from rpart in term of how the algorithms work (already mentioned by Bert Gunter) Best, Michal 2017-07-28 14:56 GMT+02:00 Tom D. Harray <tomdharray at gmail.com>: > Hello, > > I have a question related to recursive partitioning, but I cannot find > an answer, likely because I don't know how to properly word my Google > search query. > > > All recursive partitioning examples, which I can find, are u...

Hi there, I would like to use my linux system's fgrep to search for a text pattern in a file. Calling system with system("fgrep \"SearchPattern\" /path/to/the/textFile.txt") works in general, but I need to search for the search pattern at the beginning of the line. The corresponding shell command fgrep "^SearchPattern" /path/to/the/textFile.txt

Hello, I'd like to fit a user defined function to a data set, but I have problems to find my problem. The user defined function is a combination of two rectangular functions, and the listing below gives an example for what I want to do. The problem is, that I get the error message for fit1 and fit2 "Error in nlsModel(formula, mf, start, wts) : singular gradient matrix at initial

Hello, I'm using the eclat function of the arules package (1.0-6) for the identification of frequent itemsets. I need the tidLists, but if I set in the function tidLists=TRUE R crashes (Windows XP Professional SP3, 32 bit, R version 2.12.1 (2010-12-16), reproducible on two different computers) with two different error messages or non at all. Minimum examples are: library(arules)