Re: internal error: stack not empty

[Martin Helm]

Am Montag, 23. August 2010, 21:45:11 schrieb yi lu:
> I tried to plot a graph that used mometum against its events.
> The graph looks all right but when I tried to run it, it always show
> internal error: stack not empty.
> 
> Here is my script:
> reset;
> set terminal x11;
> set termopt enhanced;
> set termopt font "Helvetica,24";
> bin_width = 0.25;  # bin width in GeV
> bin_number(x) = floor(x/bin_width);
> binc(x) = bin_width * ( bin_number(x) + 0.5 );
> total_protons = 12500.0;
> isType(x,type) = (x==type)
> piplus = 8; piminus=9; Kplus = 11; Kminus = 12; KOL= 10; KOS=16;
> proton = 14; antiproton = 15; neutron = 13; lambda = 18;
> mom(px,py,pz) = sqrt(px*px+py*py+pz*pz);
> tan(px,py,pz)=(sqrt(px*px+py*py)/pz);
> datafile =  "~/Desktop/120gev_hg_total_data.txt";
> set xlabel "Angle";
> set ylabel "Number of pions";
> bin_width = 1;
> plot datafile using (binc(tan($4,$5,$6))):(isType($7,piplus)/total_protons)
> \ title "{/Symbol p}^{+}" smooth frequency w points;
> 
> and attachment is part  of the data
> since it is too big

I think you are on the wrong mailing list, gnuplot list is 
address@hidden and there is a group at
news://comp.graphics.apps.gnuplot

- mh