Everyone wants to get rid of time gaps in plot, I want them to be shown!
So I have a table in my workspace (tableM) with two variables (Date and Temperature).
Date is in the "datenum" format. I have done a lot of preprocessing on the data and had to remove many rows. Thus, I have ended up with a date variable with gaps.
When I plot the Temperature through this code: plot(tableM.Temperature), MATLAB plots the temperature normally and it just connects the two points (before the missing date with after the missing date).
When I plot temperature through this code plot(tableM.Date,tableM.Temperature) and use the datetick function, I get a plot where the date is fixed in the horizontal axis and for the date gaps, MATLAB connects the two points (before and after the missing date) with a straight line over this gap period.
What I want is to get zero for the gap period instead of this straight line connecting these points.
How do I do this?
This is the example:
% Generating data:
Date = [datenum(now-2000):datenum(now+2000)]';
Temperature = rand(4001,1); Temperature = sort(Temperature);
% Creating gaps:
Date(500:600) = []; Temperature(500:600) = [];
Date(500:600) = []; Temperature(500:600) = [];
Date(1500:2000) = []; Temperature(1500:2000) = [];
Date(1500:2000) = []; Temperature(1500:2000) = [];
% To make illustration mroe understandable:
Temperature(601:1499) = 1.8 * Temperature(601:1499);
% Normal plot:
figure; plot(Date,Temperature)
ax = gca; ax.XTickLabelRotation = -45; ax.XTick = Date(1,1):200:Date(end,1);
datetick('x',20,'keepticks','keeplimits'); ylabel('Temperature (C)'); axis tight
% Scatter plot:
figure; scatter(Date,Temperature,'.')
ax = gca; ax.XTickLabelRotation = -45; ax.XTick = Date(1,1):200:Date(end,1);
datetick('x',20,'keepticks','keeplimits'); ylabel('Temperature (C)'); axis tight
IMPORTANT: My "Date" vector is on "hourly" basis. I don't know if that creates any particular difference between the datenum values in the Date vector that could be useful.
Image1: Normal and Scatter Plots
Image2: Preferred Plot
