Dear,
(root6/ macOs 10.10)
I am running macros in root which use external libs (also build with root).
Everything works fines, but I would like to understand two small issues.
.x Analysis_1.C (see code below)
-
Why graphs disappear suddenly after having been created?
(I realized but I am not sure of the reason that if in my macros I let space before the first “{”, this situations appears.) -
As I am loading many times for test the same macro, I need to erase the variables. In fact I have error of re-declarations.
Maybe I am wrong in my way to use macros… 
If the file starts here. The line below is the extra space I mentioned in the text. If I remove it the graph stays.
{
// trying to make the plots stays
char List_files[]=“List_strain_files.frl”;
char Name_channel[]=“L1:GDS-CALIB_STRAIN”;
int Rate = 16384;
CWB::frame ifr(List_files, Name_channel,“READ”);
int nb_files=ifr.getNfiles();
waveSegment range=ifr.getFrRange();
int file_duration=(range.stop-range.start)/nb_files;
cout<<"Times: starting “<<range.start<<”\t stop “<<range.stop<<endl;
cout<<“Reading " << nb_files <<” files”<< endl;
cout<<"Reading the channel "<< ifr.getChName()<<endl;
cout<<"File duration "<<file_duration<<endl;
int N = Rate*(range.stop-range.start );
wavearray x(N);
x.rate(Rate);
x.start(range.start);
ifr >> x;
watplot pl;
// // pl.plot(x,const_cast<char*>(“APL”),1,2.,510.,false,0.,0.,true,1.); //const char is compulsary now
pl.plot(x,const_cast<char*>(“APL”),1,x.start()+1., x.stop()-1,true,1.,2000.,true,1.);
pl.canvas->SetLogy();
return pl.canvas; // used by THtml doc
}