Listing 2: CSVFile.cpp There are many ways to go about parsing text. I was more comfortable manually stepping through the text, character-by-character and so that’s what the code does. As implied by the names, ReadData() is used to read to a CSV file while WriteData() is used to...
Reading the file itself gives the "ArrowInvalid: CSV parse error: Empty CSV file or block: cannot infer number of columns" error: arrow/cpp/src/arrow/csv/parser.cc Line 545 indb19a35 returnParseError("Empty CSV file or block: cannot infer number of columns"); ...
WhenReaderopens a csv-data source (file or IO Device), it starts reading it line by line in a cycle. First of all,Readerpasses each new line to processor's methodpreProcessRawLine(QString&). In this method you can edit the line - replace values, remove sensitive information and so on...
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Andy1992-Since the file is an excel file(.csv) and I'm assuming that you've worked with excel before, each member in the data structure represents the name of column in the data file with values and labels underneath it(each of those values and labels correspond to the name of the col...
This code is supposed to put read a .csv file into a 2d array. Im pretty sure you cant do this but i dont know how im supposed to change it in a way that it still works. Sep 29, 2013 at 10:31pm Stewbond(2827) The prototype for std::getline is something like this: ...
After the experiment, a csv-file was generated and the participants were asked to send it to the experimenter. 6.5 Measurements The time measurement used in the experiment is the reaction time, i.e., the time starting from the moment code is shown to the participant until the moment when...
EDIT: Ok, solved my own problem. It was a problem with the characters at the end of the line. Mac OS X is Unix based, and uses "\n" at the end of a line. But after doing some searching, I found that there is a problem with Excel on Macs that saves .csv files with "\r"....
#include <iostream>#include <fstream>#include <sstream>#include <string>classCSVMatrix {public:voidloadMatrix(std::istream& inStream) { std::string line; std::stringstream lineStream; std::string cell;introw=0;//read lineswhile( std::getline(inStream, line) ) { std::cout <<"row="<...
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