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Dear all, Could you please help me how to get the output as I described in the following example? x<-c(543, 543, 543, 543, 551 , 551 ,1128 ,1197, 1197) diff<-x-lag(x) diff [1] NA 0 0 0 8 0 577 69 0 How to index the occasions in x repeatedly if the diff<15? if diff>=15, it will give a new index. I want the output be like y. y<-c(1,1,1,1,1,1,2,3,3) Thank you so

Dear all, Could you please help me how to get the output as I described in the following example? x<-c(543, 543, 543, 543, 551 , 551 ,1128 ,1197, 1197) diff<-x-lag(x) diff [1] NA 0 0 0 8 0 577 69 0 How to index the occasions in x repeatedly if the diff<15? if diff>=15, it will give a new index. I want the output be like y. y<-c(1,1,1,1,1,1,2,3,3) Thank you so

I've completed an experiment and want to summarize the results. There are two things I like to create. 1) A simple count of things from the data.frame with predictions 1a) Number of predictions with probability greater than x 1b) Number of predictions with probability greater than x that are really true In SQL, this would be, "Select count(predictions) from

Hi All, I have a 1000x1000000 matrix. The calculation I would like to do is actually very simple: for each row, calculate the frequency of a given pattern. For example, a toy dataset is as follows. Col1 Col2 Col3 Col4 01 02 02 00 => Freq of ?02? is 0.5 02 02 02 01 => Freq of ?02? is 0.75 00 02 01 01 ? My code is quite simple as the following to find the pattern ?02?.

...--------------------------- SEXP type | Rcpp class ---------------------------------------------------------- INTSXP | Rcpp::IntegerVector REALSXP | Rcpp::NumericVector RAWSXP | Rcpp::RawVector LGLSXP | Rcpp::LogicalVector CPLXSXP | Rcpp::ComplexVector STRSXP | Rcpp::CharacterVector VECSXP | Rcpp::List EXPRSXP | Rcpp::ExpressionVector ---------------------------------------------------------- ENVSXP | Rcpp::Environment SYMSXP | Rcpp::S...

...--------------------------- SEXP type | Rcpp class ---------------------------------------------------------- INTSXP | Rcpp::IntegerVector REALSXP | Rcpp::NumericVector RAWSXP | Rcpp::RawVector LGLSXP | Rcpp::LogicalVector CPLXSXP | Rcpp::ComplexVector STRSXP | Rcpp::CharacterVector VECSXP | Rcpp::List EXPRSXP | Rcpp::ExpressionVector ---------------------------------------------------------- ENVSXP | Rcpp::Environment SYMSXP | Rcpp::S...