Bins for histogram about dataplotly HOT 1 CLOSED

import plotly
import plotly.graph_objs as go

vl = iface.activeLayer()

f1 = []
for i in vl.getFeatures():
    f1.append(i['PH'])
    
trace1 = go.Histogram(
x = f1,
nbinsx = 6
)

layout = go.Layout(
    showlegend = True
)


data = [trace1]
fig = go.Figure(data=data, layout = layout)
plotly.offline.plot(fig)