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Baba on 17 Nov 2011
i have a column of data that has 100 points I also have a time column which only has 10 points basically data was sampled at 10Hz, but my time vector contains time value for every 10th sample.
How would I plot this? I run into a problem since the vectors are of different size.

Answers (1)

Walter Roberson
Walter Roberson on 17 Nov 2011
FirstTime = Time(1) - 9/10 * mean(diff(Time));
NewTimes = linspace(FirstTime, Time(end), length(Data));
plot(NewTimes, Data);
The above code is for the case where the Time vector was first sampled at the 10th data point, and assumes that the time vectors were sampled at intervals that average out equally. The first line is to back-project to the starting time.
The code would be pretty similar in spirit if instead the first Time corresponds to the starting time, and it was the end time that was unknown.
Walter Roberson
Walter Roberson on 18 Nov 2011
No, there isn't. Matrix elements _always_ have a value.

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