Adjusting histogram bin width.
61 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I have a histogram with a large range of data. It can run up to figures of 10^135(not many), these figures however are largely irrelevant as everything interesting is happening at very close to zero(most figures are close to zero). I need to somehow fit about 20-30 bins between the range of -0.3 and 0.3 to see what is happening, but the bin widths that matlab has is too large as it just puts everything close to zero in one single bar and that's no use to me.
How do I adjust the bin widths? I tried increasing the number of bins but that doesn't seem to help, I still get one giant spike near zero and this needs to be split up to more bins.
0 Kommentare
Antworten (2)
Josh Meyer
am 27 Mär. 2015
If you use the new histogram function, introduced in R2014b, there is a great deal of control for problems like this.
To plot a histogram with 30 bins between -0.3 and 0.3, try this:
x = randn(1000,1);
h = histogram(x,30,'BinLimits',[-0.3 0.3])
Note that when you specify the BinLimits, histogram only plots the data that falls within those limits inclusively.
To plot all of the data but still improve the resolution between -0.3 and 0.3, you can just explicitly specify all of the bin edges with a vector as the second input, perhaps something like this:
edges = [-5:0.5:-0.5, linspace(-0.5,0.5,30), 0.5:0.5:5];
h = histogram(x,edges)
More information:
0 Kommentare
Siehe auch
Kategorien
Mehr zu Histograms finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!