how make multiple cut or crop of time series

I've got multiple time series. One has gaps and was concatenated when exported to a Mat file. Now some of the data was continuous and much longer than the concatenated. I need a way to cut the sections out of the continuous data at known time points and duration. I wanted to do something like this, but it obviously does not work.

SpeedCropped = Speed(1318:1409 1903:2065 2278:2445);

Is it possible? What is the correct syntax or do I have to do this 9 times?

Thanks

Answer 1

[Star Strider]

We do not know the dimensions of ‘Speed’. Assuming it is a vector, to concatenate the indices, enclose them in square brackets:

SpeedCropped = Speed([1318:1409 1903:2065 2278:2445]);

If there are more dimensions, add additional default dimensions, such as for ‘Speed’ being a 2D matrix, where you are addressing the rows:

SpeedCropped = Speed([1318:1409 1903:2065 2278:2445],:);

or:

SpeedCropped = Speed(:,[1318:1409 1903:2065 2278:2445]);

if you are addressing the columns.

[RichardB]

Thanks. Should have known that.

[Star Strider]

As always, my pleasure!

No worries! Not everything in MATLAB is immediately obvious, and there is a lot to remember about it.