Hello,
try doing:
import matplotlib.pyplot as plt
import random
rolls = list()
for i in range(1000):
rolls.append(random.randint(1,6))
plt.hist(rolls, bins=6)
plt.show()
Reason why your histogram is weird is because you only can have 6 bins
in your example. But the default bin number for hist function is 10.
The borders of bins are therefore set at half intervals. When you roll
1, bin 0 to 0.6 gets incremented, when you roll 2.2 bin 2-2.6 gets
incremented, but the bin 0.6-2.2 never does.
Follow me? (also I just made those numbers up...) Point is only the
bottom bins of your roll values are filled which leaves a gap in your
image.
Dino
2014-12-03 21:51 GMT+01:00 Amit Saha <[email protected]>:
> On Thu, Dec 4, 2014 at 6:45 AM, Brendan Barnwell <[email protected]>
> wrote:
>> On 2014-12-03 12:39, Amit Saha wrote:
>>>
>>> Hi,
>>>
>>> Please find attached a simple histogram created using the hist()
>>> function. Any idea why the last two bars are squeezed into each other?
>>> Is there a simple way to fix this while plotting?
>>
>>
>> It looks like the bins are set up so that there are empty bins
>> between each of the other bars. How are you setting the bins? You could
>> try adjusting the bin boundaries.
>
> Thanks for the reply. This is my program:
>
> import matplotlib.pyplot as plt
> import random
>
> def roll():
> return random.randint(1, 6)
>
> if __name__ == '__main__':
> rolls = []
> for i in range(1000):
> rolls.append(roll())
> # create a histogram plot
> plt.hist(rolls)
> plt.show()
>
>
> So, just using the hist() function for now.
>
> Thanks, Amit.
>
>>
>> --
>> Brendan Barnwell
>> "Do not follow where the path may lead. Go, instead, where there is no
>> path, and leave a trail."
>> --author unknown
>
>
>
> --
> http://echorand.me
>
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