CODEWITHSUNDEEP
pythonnumpydistribution
Devinity
Devinity

Reputation: 377

How to normalize a histogram of an exponential distributionin scipy?

I'm trying to fit an exponential distribution to a dataset I have. Strangely, no matter what I do I can't seem to scale the histogram so it fits the fitted exponential distribution.

param=expon.fit(data)
pdf_fitted=norm.pdf(x,loc=param[0],scale=param[1])
plot(x,pdf_fitted,'r-')
hist(constraint1N55, normed=1,alpha=.3,histtype='stepfilled')

Probability distribution. Note how the histogram has much more area than the exponential fit.

For some reason, the histogram takes up much more space than the probability distribution, even though I have normed=1. Is there something I can do to make things fit more appropriately?

Upvotes: 1

Views: 3882

Answers (1)

Devinity
Devinity

Reputation: 377

You made an error. You fitted to an exponential, but plotted a normal distribution:

pdf_fitted=expon.pdf(x,loc=param[0],scale=param[1])

The data looks good when plotted properly:

enter image description here

Upvotes: 5

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