Identifying data from specific time periods

Hi, I have data which represents a persons activity over 5 consecutive days. I want to try and identify data from specific time periods e.g. there activity between 3pm-8pm on Wednesday and between 9am-1pm on Friday. Any suggestions on how I can do this? Thanks

[John D'Errico]

Huh? What does it mean to you to identify data? Explain your question CLEARLY. Give an example.

https://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

[Guillaume]

With so little information, how can we answer?

Is the timing of the activity stored in your data? If not, is the activity measured at a regular interval (which is ...?). Basically how do you know what the activity timing is?

Answer 1

[Guillaume]

With so little information, it's difficult to go into details, but matlab has the function isbetween.

[M Lamb]

Thanks Guillaume. The activity has been classified as either active (1) or not active (0) in Matlab, for the whole 5 day period (120 hours), with a measurement being taken every tenth of a second. So I can calculate total active and non-active time for the whole 5 day period, but I would like to specifically look at certain times of the day. Is that a bit clearer?