Wrong Histogram chart with integer numbers

[dmib]

Step to reproduce:

import plotly.express as px
tips = px.data.tips()
tips = tips[tips["size"].isin([1,4,6])]
fig = px.histogram(tips, x="size", y="tip", histfunc='count')
fig.show()

output:

expect result:

Thanks.

[nazariyb]

By default it used 4 bins and merge data from neighboring columns into one. Specify number of bins: fig = px.histogram(tips, x="size", y="tip", histfunc='count', nbins=len(tips))

[nicolaskruchten]

@nazariyb's answer is pretty much what I would write. The bins in your first figure are correct, they just span multiple sizes, and you can control this behaviour with nbins