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Coloring scatter plot based on count number

3 次查看(过去 30 天)
Hi,
I have a table (results) with time as a first column (result.time) and the count of an event in the second (result.event). I would like to plot the counts through time and colour the dots depending on the count number.
This is the start of my table:
time = ({'25-Jul-2018 00:00:00';'25-Jul-2018 00:15:00';'25-Jul-2018 00:30:00';'25-Jul-2018 00:45:00';'25-Jul-2018 01:00:00';'25-Jul-2018 01:15:00';'25-Jul-2018 01:30:00';'25-Jul-2018 01:45:00';'25-Jul-2018 02:00:00';'25-Jul-2018 02:15:00';'25-Jul-2018 02:30:00';'25-Jul-2018 02:45:00';'25-Jul-2018 03:00:00';'25-Jul-2018 03:15:00';'25-Jul-2018 03:30:00';'25-Jul-2018 03:45:00';'25-Jul-2018 04:00:00';'25-Jul-2018 04:15:00';'25-Jul-2018 04:30:00';'25-Jul-2018 04:45:00'})
time = datetime(time,'InputFormat','dd-MMM-yyyy HH:mm:ss');
event = ([0; 1; 0; 1; 0; 0; 2; 0; 0; 4; 0; 0; 0; 0; 0; 0; 0; 5; 10; 2])
results = table(time,event)
scatter(results.time,results.event)
In the scatter plot, I would like the event markers to be coloured differently depending on their value (e.g. from yellow for small numbers to red for bigger numbers).
Many thanks for your help!

采纳的回答

Adam Danz
Adam Danz 2021-9-17
编辑:Adam Danz 2021-9-17
Unchanged base code
time = ({'25-Jul-2018 00:00:00';'25-Jul-2018 00:15:00';'25-Jul-2018 00:30:00';'25-Jul-2018 00:45:00';'25-Jul-2018 01:00:00';'25-Jul-2018 01:15:00';'25-Jul-2018 01:30:00';'25-Jul-2018 01:45:00';'25-Jul-2018 02:00:00';'25-Jul-2018 02:15:00';'25-Jul-2018 02:30:00';'25-Jul-2018 02:45:00';'25-Jul-2018 03:00:00';'25-Jul-2018 03:15:00';'25-Jul-2018 03:30:00';'25-Jul-2018 03:45:00';'25-Jul-2018 04:00:00';'25-Jul-2018 04:15:00';'25-Jul-2018 04:30:00';'25-Jul-2018 04:45:00'});
time = datetime(time,'InputFormat','dd-MMM-yyyy HH:mm:ss');
event = ([0; 1; 0; 1; 0; 0; 2; 0; 0; 4; 0; 0; 0; 0; 0; 0; 0; 5; 10; 2]);
results = table(time,event);
Define color
scatter(results.time,results.event, 90, results.event, 'filled')
set colormap
colormap(flipud(autumn(255)))
cb = colorbar();
ylabel(cb, 'Count') % redundant with y-axis

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