Hello everyone, First of all, let me thank all involved with the Rcpp package!
I just have a (maybe silly) question, but I struggle with this frequently in my codes: Range() vs IntegerVector One example is when I need a reverse index, like R's 10:1, so I had to write my own function that returns an IntegerVector. But, to work I have to do this ugly code: IntegerVector dot_rev_idxs1 = ::seq((i - 1), beginidx); IntegerVector dot_rev_idxs2 = ::seq((idx_nn - 1), (beginidx + idx_diff)); IntegerVector dot_rev_idxs3 = ::seq((i - 1 + window_size), ( beginidx + window_size)); IntegerVector dot_rev_idxs4 = ::seq((idx_nn - 1 + window_size), ( beginidx + idx_diff + window_size)); dotproduct[dot_rev_idxs1] = (NumericVector)((NumericVector)cumsum( data[dot_rev_idxs1] * data[dot_rev_idxs2] - data[dot_rev_idxs3] * data[dot_rev_idxs4]) + dotproduct[i]); I frequently have to cast the results with (NumericVector)... This also happens using Range(). But there is a difference if I use Range() this way: my_vector[Range(0,10)]; or Range range = Range(0, 10); my_vector[range]; How is the proper way to deal with it? Other question: as<NumericVector() doesn't 'cast' right? Does it try to 'convert' formats? And finally, I see that Matlab has a unique way to deal with ranges: Ex.: 1) (1:10) --> 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 2) (10:1) --> returns a vector with size zero 3) (10:-1:1) --> 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 Range() shouldn't at least reproduce the R's counterpart and accept Range(10,1) == 10:1? Thanks in advance! my package: https://CRAN.R-project.org/package=tsmp <https://mailtrack.io/trace/link/9b0962ae6d75a7caaaf14e3c8d77db64148aabc1?url=https%3A%2F%2Fcran.r-project.org%2Fpackage%3Dtsmp&userId=3785237&signature=c65e6b4074bf11ac> -- Francisco Bischoff, MD, MSc Faculty of Medicine of the University of Porto, Portugal - Master of Medical Informatics | topic: time series - Research Associate | artificial intelligence for health <https://mailtrack.io/trace/link/93d55bc6ee2a8fc10541d0274f3fde245e944698?url=http%3A%2F%2Fcintesis.eu%2Fai4health%2F&userId=3785237&signature=decc8b53c66739e9> @ cintesis.eu <https://mailtrack.io/trace/link/02df11fcc383816c96681205a4142a6ccb60bfaa?url=http%3A%2F%2Fcintesis.eu&userId=3785237&signature=9d174b79c4ee78b7> - Teaching Assistant | department of community medicine, information and health decision sciences @ med.up.pt <https://mailtrack.io/trace/link/50de7c0f37c419aafee22f9492fdfdbd1da63c1d?url=http%3A%2F%2Fmed.up.pt&userId=3785237&signature=66de0e074d671cf7> ORCID: 0000-0002-5301-8672 | Mendeley: francisco-bischoff | Google: tCeA0uUAAAAJ | ResearcherID: H-8261-2016 | ResearchGate: Francisco_Bischoff | CiênciaID B413-E0A0-DE8D | LinkedIn: franzbischoff *"Quality is not an act, it is a habit."-- Aristotle*
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