How do I insert a placeholder in a plot where I don't have data?

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Victoria Helm 2020-6-16

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https://ww2.mathworks.cn/matlabcentral/answers/549519-how-do-i-insert-a-placeholder-in-a-plot-where-i-don-t-have-data

评论： dpb 2020-6-17

I'm making a plot from two columns/variables in my data table where one of the variables is the day that the data was collected on. I want to look for trends/patterns in my data as the number of days increases. However, there are certain dates on which I did not collect any data. So I'd like to insert a place holder on the dates when no data was collected and include these in my plot. Is this possible?

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Victoria Helm 2020-6-16

I know how to use markers and change the x-axis ticks. I'm trying to find a way to prevent my plot from dropping off to zero on the y-axis because I'm dealing with daily data. It looks like I might need to work with a timetable rather than a data time like dbp mentioned.

dpb 2020-6-17

" I'm trying to find a way to prevent my plot from dropping off to zero on the y-axis..."

That's why I asked about "showing" versus "nonshowing" markers.

Use NaN or (NaT if x-axis is datetime)

It would be much easier to write actual code example if we knew what your data format looked like -- still for the purpose the timetable or a table with the time/date column as a datetime would make it drop-dead simple.

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