Le vendredi 12 septembre 2008 à 10:46 -0400, Marlon Nelson a écrit : > I originally thought this was a bug and was about 30 seconds from > submitting one to bugzilla when I began to suspect the problem is with > my understanding of what a histogram is. > > With the data listed below (frequency of daily returns of Merrill > Lynch stock over the last 10 years), I created a histogram chart. The > highest point on the chart reaches 50,000. I was expecting 1011. > > Reading a bit from wikipedia, I see what I was actually expecting to > see is a bar chart. > > But given a histogram chart of this data, what do the y-axis numbers mean? > > Bin Frequency > -15% 1 > -13% 1 > -11% 4 > -9% 6 > -7% 13 > -5% 53 > -3% 167 > -1% 510 > 1% 1011 > 3% 489 > 5% 156 > 7% 57 > 9% 26 > 11% 6 > 13% 4 > 15% 3 > 17% 2 > > -- > -eom-
The histogram plots the density, as the 1011 data are in a 0.02 interval, you get 1011 / 0.02 = 50550 as the largest value. Regards, Jean _______________________________________________ gnumeric-list mailing list gnumeric-list@gnome.org http://mail.gnome.org/mailman/listinfo/gnumeric-list
