sys.stdout.flush();
self.db.execute("drop table if exists glitchrange;");
self.db.execute("create table glitchrange(time integer primary key asc,max,min);");
- self.db.execute("insert into glitchrange(time,max,min) select distinct time, 0, 0 from glitches;");
self.db.commit();
- print "Maximums...";
+ print "Calculating ranges...";
sys.stdout.flush();
- self.db.execute("update glitchrange set max=(select max(vcc) from glitches where glitches.time=glitchrange.time and count=0);");
- self.db.commit();
- print "Minimums...";
- sys.stdout.flush();
- self.db.execute("update glitchrange set min=(select min(vcc) from glitches where glitches.time=glitchrange.time and count>0);");
+
+ maxes={};
+ mins={};
+
+ c=self.db.cursor();
+ c.execute("select time,vcc,count from glitches;"); #Limit 10000 for testing.
+ progress=0;
+ for r in c:
+ progress=progress+1;
+ if progress % 1000000==0: print "%09i rows crunched." % progress;
+ t=r[0];
+ v=r[1];
+ count=r[2];
+ if count==0:
+ try: oldmax=maxes[t];
+ except: oldmax=-1;
+ if v>oldmax: maxes[t]=v;
+ elif count==1:
+ try: oldmin=mins[t];
+ except: oldmin=0x10000;
+ if v<oldmin: mins[t]=v;
+ print "List complete. Inserting.";
+ for t in maxes:
+ max=maxes[t];
+ try: min=mins[t];
+ except: min=0;
+ self.db.execute("insert into glitchrange(time,max,min) values (?,?,?)",(t,max,min));
self.db.commit();
- print "Ranges calculated.";
+ print "Done, database crunched.";
def graphx11(self):
try:
import Gnuplot, Gnuplot.PlotItems, Gnuplot.funcutils