As Darren said, normed=1 means that the integral of the histogram is
normalized to one, not the height. In other words, the total area under the
histogram curve is set to one.
Imagine a histogram with a single bin. If the width of the bin is less than
one, the height must be greater than one in order for the area to equal one.
Therefore the y-axis scale can be greater than one even when normed=1.
-Roban
On Mon, Mar 30, 2009 at 12:11 PM, Bala subramanian <
bala.biophys...@gmail.com> wrote:
> There was a typo in my previous mail.
> y axis goes scale is more than one when i use normed=1. I am not getting
> why this happens.
>
>
> On Mon, Mar 30, 2009 at 6:10 PM, Bala subramanian <
> bala.biophys...@gmail.com> wrote:
>
>>
>>
>>
>> Darren,
>>> But y axis goes scale is than one when i use normed=1. I am not getting
>>> why this happens.
>>>
>>>
>>> On Mon, Mar 30, 2009 at 5:39 PM, Darren Dale <dsdal...@gmail.com> wrote:
>>>
>>>> On Mon, Mar 30, 2009 at 11:25 AM, Bala subramanian <
>>>> bala.biophys...@gmail.com> wrote:
>>>>
>>>>> Friends,
>>>>>
>>>>> I tried to plot a histogram and pdf of my data (data file attached
>>>>> 1.dat). When i see the figure (attached file test.png) , i see y axis more
>>>>> than 1 (although it should not when i use normed=1. I am not getting why
>>>>> this happens.
>>>>>
>>>>> Somebody kindly write me i) Why the y-axis scales more than 1 ii) after
>>>>> plotting histogram and pdf, how to delete the histogram and show only the
>>>>> normal curve.
>>>>>
>>>>> The following are the commands i used.
>>>>> data=load('1.dat')
>>>>> x=[:,1]
>>>>> mu=mean(x);st=std(x)
>>>>> n,bins,patch=hist(x,50,normed=1,histtype='stepfilled')
>>>>> y = normpdf( bins, mu, st)
>>>>> plot(bins, y, 'k--', linewidth=1.5)
>>>>>
>>>>
>>>> hist plots a distribution whose integral is 1.
>>>>
>>>
>>>
>>
>
>
> ------------------------------------------------------------------------------
>
> _______________________________________________
> Matplotlib-users mailing list
> Matplotlib-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>
------------------------------------------------------------------------------
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
