http://imagej.273.s1.nabble.com/How-to-read-results-fromat-in-C-tp3683616p3683618.html
Thanks for your advice ！It works well in My eclipse. I will remember
the capitalization "R ". You are good at stream of C++. Thank you
> Hi Pei,
>
> On Thu, 4 Aug 2011, Pei wrote:
>
> > I want to use the C++ program to read the results.txt of ImageJ. But
> after load the data seem so strange: Here is the C++ code :
>
> You mean Results.txt with an upper-case 'R'. Even if you're on Windows, it
> is a good habit to get into to pay attention to the case of the letters.
>
> > int main() {
> >
> > double Length, Width, LStrip, WStrip, NLStrip, NWStrip,
> NMeshLstrip, NMeshWstrip;
> > double test[48];
> > if(!experData){
> > cout << "Unable to open myfile";
> > exit(1); // terminate with error
> >
> > }
> > while (! experData.eof()){
> > experData>>Length>>test[1]>>Width>>LStrip>>WStrip>>
> NLStrip>>NWStrip;
> > cout <<NWStrip<<"\n";
> >
> > }
> > But the Output of NWStrips is 5.56182e-308. But I do not have this data
> in my files. How to read the" results" format file? Thank you
>
> That number sounds awfully close to the smallest positive value you can
> have with double precision floating points according to the IEEE standard:
>
>
http://en.wikipedia.org/wiki/IEEE_754-2008#Basic_formats>
> Anyway, I gave it a try and this is what I came up with:
>
> -- snipsnap --
> #include <iostream>
> #include <fstream>
> #include <sstream>
> #include <string>
> #include <vector>
>
> std::istream& operator>>(std::istream& input_stream,
> std::vector<std::vector<double> >& table)
> {
> std::string line;
> table.clear();
>
> while (std::getline(input_stream, line, '\n')) {
> std::istringstream parse_line(line);
> std::vector<double> row;
> std::string field;
> double value;
>
> while (std::getline(parse_line, field, '\t')) {
> std::istringstream parse_field(field);
> parse_field >> value;
> row.push_back(value);
> }
> if (row.size() > 0)
> table.push_back(row);
> }
>
> return input_stream;
> }
>
> int main(int argc, char **argv)
> {
> std::ifstream input_stream(argv[1]);
> std::vector<std::vector<double> > table;
>
> input_stream >> table;
>
> std::cout << table.size() << " rows" << std::endl;
>
> for (int row = 0; row < table.size(); row++) {
> std::cout << "Row " << row << ": ";
> std::vector<double>& values = table[row];
> for (int column = 0; column < values.size(); column++)
> std::cout << (column > 0 ? "; " : "") <<
> values[column];
> std::cout << std::endl;
> }
>
> return 0;
> }
>