Rob, Please look again at Romain's reply to you on 19th March. He informed you then that Rcpp has its own dedicated mailing list and he gave you the link. Matthew
"R_help Help" <rhelp...@gmail.com> wrote in message news:ad1ead5f1003291753p68d6ed52q572940f13e1c0...@mail.gmail.com... > Hi, > > I'm a bit puzzled. I uses exactly the same code in RcppExamples > package to try adding RcppFrame object to RcppResultSet. When running > it gives me segmentation fault problem. I'm using gcc 4.1.2 on redhat > 64bit. I'm not sure if this is the cause of the problem. Any advice > would be greatly appreciated. Thank you. > > Rob. > > > int numCol=4; > std::vector<std::string> colNames(numCol); > colNames[0] = "alpha"; // column of strings > colNames[1] = "beta"; // column of reals > colNames[2] = "gamma"; // factor column > colNames[3] = "delta"; // column of Dates > RcppFrame frame(colNames); > > // Third column will be a factor. In the current implementation the > // level names are copied to every factor value (and factors > // in the same column must have the same level names). The level names > // for a particular column will be factored out (pardon the pun) in > // a future release. > int numLevels = 2; > std::string *levelNames = new std::string[2]; > levelNames[0] = std::string("pass"); // level 1 > levelNames[1] = std::string("fail"); // level 2 > > // First row (this one determines column types). > std::vector<ColDatum> row1(numCol); > row1[0].setStringValue("a"); > row1[1].setDoubleValue(3.14); > row1[2].setFactorValue(levelNames, numLevels, 1); > row1[3].setDateValue(RcppDate(7,4,2006)); > frame.addRow(row1); > > // Second row. > std::vector<ColDatum> row2(numCol); > row2[0].setStringValue("b"); > row2[1].setDoubleValue(6.28); > row2[2].setFactorValue(levelNames, numLevels, 1); > row2[3].setDateValue(RcppDate(12,25,2006)); > frame.addRow(row2); > > RcppResultSet rs; > rs.add("PreDF", frame); > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
