Python Seaborn plotting blank histogram

Question

I'm trying to plot a histogram using seaborn in python. But all it gives me is a blank figure.

Here is the describe() of my column:

The code:

plt.subplots(figsize=(7,7))
sns.histplot(data=contratos, x='duracao_contrato', bins='fd')

The output:

Answer 1

It seems the automatic bin estimation failed in your case. This can happen for some estimator-data combinations (see another example here).

Generally, estimators like fd should work with seaborn - seaborn passes the bin keyword to numpy because the calculation of the histogram data is performed by numpy. Unfortunately, if estimators fail in their bin calculation, they fail silently, so it is often not clear why the graph is not plotted.

So, what can be done in this case? First, one can try to use bins=auto - a versatile estimator that chooses the "best" of the available estimator functions. If this is unsatisfactory, try other estimators like bins="doane" or bins="stone" (seemingly, you have done this already). If this is still unsatisfactory define the number bins=10 (evenly spaced bins) or ranges bins=[-5000, 300, 350, 370, 400, 8000] (unevenly spaced bins).
BTW, another silent error can be created by using inf in the bin list bins=[-np.inf, 300, 350, 370, 400, np.inf] will probably also create an empty graph (I assume because the bins are used to determine the x-range of the graph).