Hi list I searched the list and google, but couldn't find a way to solve my pbm.
I have data stored in a list (from an sql query) , with these "columns": x = time serie in hours y = some level value There are some missing values : eg between 08:33 and 08:40. Here is my code : sqla="SELECT * FROM import_parcelle a WHERE dat_loc='" + date_traite + "' AND code_uc='" + code_uc + "' ORDER BY a.heu_loc ;" resa=db.query(sqla) data=resa.dictresult() #x = time serie x= [ datetime.datetime(*time.strptime(a["dat_loc"]+" "+a["heu_loc"],'%Y-%m-%d %H:%M:%S')[0:6] ) for a in data] #y5 = tank level y5= [float(a["niv_cuv"]) for a in data] # --> extraction de la colonne y1 figure() # the plot command with no mask plot_date(x,y5,color='b',linestyle='None',marker='',xdate=True,ydate=False) #the mask #ym5 = ma.masked_where(y5 <300, y5) #plot_date(x,ym5,color='r',linestyle='-',xdate=True,ydate=False) #the filling under the curve xs, ys = poly_between(x, 0, y5) fill(xs,ys) Here is the result: http://michaeldouchin.free.fr/17_2007-06-07_10B_vitesse.png As you see, I commented the lines with the mask, because it did not change anything To see what I am looking for, here is the result under R (a statistical tool) http://michaeldouchin.free.fr/17_2007-06-07_10B_vitesse.jpg As you see, between 08:48 and 08:50 (for example), there is a gap, showing we have no data for this interval. As I want to automatically draw this graph for different set of data, I can't look each set in detail. I tried to folow the example masked_demo.py, but I could not adapt it to my case.... Any hint ? Thanks very much in advance Michael ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users