Title for colorbar in Plotly Heatmap

Question

This is my code:

fig = go.Figure(
    data=go.Heatmap(z=z_values, y=[str(x) for x in params_1], x=[str(x) for x in params_2]), 
    layout=go.Layout(
        title="Analysis results",
        xaxis=dict(title='Diameter'),
        yaxis=dict(title='Max Distance')
    ),
)
fig.show()

It generates a 2D-heatmap (snippet below), but I'd like to include a title for the colorbar:

Unfortunately the plotly example also does not have a colorbar title. I have tried to include the colorbar properties with the "marker" but this throws an error. How can I do that hence?

Answer 1

Try

fig = go.Figure(
    data=go.Heatmap(z=z_values, y=[str(x) for x in params_1], x=[str(x) for x in params_2]), 
colorbar=dict(title='Title') , 
    layout=go.Layout(
        title="Analysis results",
        xaxis=dict(title='Diameter'),
        yaxis=dict(title='Max Distance')
    ),
)
fig.show()