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Good morning! I do not speak English very well and so I will try to explain the best I can. I have this: > tabela[,1] [1] a a b b a c b a c c c c c Levels: a b c >unique(tabela[,1]) [1] a b c Levels: a b c >var<-unique(tabela[,1])[1] > var [1] a Levels: a b c But if I concatenate like this > cat("VAR: ", var, "\n") I obtain >VAR: 1 and I

Hello! May you help me? I'm trying to do a contingency table using this > data(iris) > library(rpart) > modelo <- rpart(Species ~., iris) > prev <- predict(modelo, iris) Finally the contingency table > table(iris$Species, prev) But an error occurs: Error in table(iris$Species, prev) : all arguments must have the same length And I do not understand why, may you

Hello, I' m trying to change the formula in the rpart function. The format of a general formula is Answer ~ expression, where Answer is the dependent variable and expression is set of terms containing the independent variables and separated by operators. I want the response of the formula is more than one dependent variable. It is possible?

Good Morning! May you help me? I need to understand the function predict. I need to understand the algorithm implemented, the calculations associated. Where can I find this information? Thank You!

Hello! I need some help, because I don't know how this error means: Error: variables ?Output1?, ?Output2?, ?Output3?, ?Output4?, ?Output5? were specified with different types from the fit Execution halted Can you help me? Thank You

Hello, How can I do a cross validation in R? Thank You!

Hi, we're running Asterisk 1.2.10 and have been randomly being left blank voicemails with long messages that we can't hear. I've searched and searched but cannot find a solution. This is what happens: Internal Server runs Asterisk 1.2.10 where our mailboxes are Incoming Server (behind a firewall) runs Asterisk 1.2.13 and calls are bridged between this server and our internal server.

...proposal comments (Liviu Andronic) 51. Re: learning S4 (Robin Hankin) 52. Re: tree() producing NA's (Prof Brian Ripley) 53. tree() producing NA's (Amnon Melzer) 54. Dendrogram for agglomerative hierarchical clustering result (noorpiilur) 55. The function predict (Carla Rebelo) 56. Re: Help with write.csv (Richard.Cotton at hsl.gov.uk) 57. Re: The function predict (Dieter Menne) 58. Re: Help with write.csv (Suhaila Zainudin) 59. Re: Dendrogram for agglomerative hierarchical clustering result (Wolfgang Huber) 60. Conditional rows (Ng Stanley) 61. image q...

Hi, I've just read this on Vorbis Xtreme site: "11. YOU SAY THAT OGG VORBIS IS PATENT-FREE, BUT I SAW A PATENT NAMED 'JOINT-STEREO' ON FRAUNHOFER'S PATENT LIST? SO OGG VORBIS ACTUALLY ISN'T PATENT-FREE SINCE IT ALSO USES JOINT-STEREO? No. You can't judge on a patent just by looking at its name - what's 'inside' is what matters. So if the name of the