[Question] Keep sincronization with data generated at different rate

[torydebra]

Hi,

I have some data A that is generated at each loop
Then I have another data B that sometimes is not generated

So, if I log data B only when it is generated, I loose the time syncronization with data A, because B will have less columns (where the "time" is) and I can not understand which column B generated at loop X correspond to the column of A generated at the same loop X

A solution can be to generated always also B data, putting zeros as value when I do not have values.

Have you used different approaches? @liesrock @alaurenzi ?

[liesrock]

if you log the "real" time and you plot A and B w.r.t time you have A and B synchronized even if they do not have the same dimension.

[alaurenzi]

Yes, recording separate timestamps for both series is an option. You can try (I have never done it) to record NaNs instead of zeros, so that matlab won't show them in the plot.

[torydebra]

So,

• I would need a timestamp for each "not always available" variables plus one timestamp for all the "always available" ones
• Log everything adding NaN or some "invalid" value

Is there the possibility in the future to have timestamps directly integrated in the logged variable?