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Baba
Baba 2011 年 11 月 17 日
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.

回答 (1 件)

Walter Roberson
Walter Roberson 2011 年 11 月 17 日
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.
  2 件のコメント
Baba
Baba 2011 年 11 月 18 日
is there a way to create n spaces between matrix elements and then fill those spaces in?
Walter Roberson
Walter Roberson 2011 年 11 月 18 日
No, there isn't. Matrix elements _always_ have a value.

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