main svmのオプションを付ける int main( int argc, char *argv[] ) { char* filename_to_save = 0; char* filename_to_load = 0; char default_data_filename[] = "./letter-recognition.data"; char* data_filename = default_data_filename; int method = 0; int i; for( i = 1; i < argc; i++ ) { if( strcmp(argv[i],"-data") == 0 ) // flag "-data letter_recognition.xml" { i++; data_filename = argv[i]; } else if( strcmp(argv[i