Using custom color scheme in vaex.viz.histogram

[DanielvdC]

Hi,

I am trying to visualise a large amount of timestamps of deliveries made in the past two years (+- 3 billion data points) where each data point has a value associated with it regarding its timing: 'Too early', 'On time' or 'Too late'.

I successfully plotted the data points with the viz.histogram function, but is it possible to color datapoints regarding to their value? I would like them to be yellow, green and red, respectively. Otherwise, is there perhaps another way of visualising that would better suit my needs?

Thanks in advance!

[JovanVeljanoski]

Well, you can't really plot 3 billion points anyway (if I understand you correctly).. That's why we do histograms.
Maybe I am misunderstanding what you are trying to do.

You can easily overplot 3 histograms associated with each of your 3 flags. Would that be helpful?
You can do it with something like

df.viz.histogram(df.timestamps, selection=df.flag == 'Too early') # And similar for the other 2 choices. 

[DanielvdC]

This will do the trick indeed. Thanks!

[maartenbreddels]

Maybe stacked histograms?