Write function to expand array and average adjacent entries.

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Ashley
Ashley 2012-10-16
Write a function twice.m: function y = twice(x) ... end which expands the input signal by inserting the average of the adjacent entries. For example, >> twice([1 5 2 4]) ans = 1 3 5 3.5 2 3 4 You are not allowed to use for-loop in this problem.

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Matt J
Matt J 2012-10-16
Hint: interp1

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Matt Fig
Matt Fig 2012-10-16
编辑：Matt Fig 2012-10-16
Please show what you have done so far for your homework problem....
The more effort you show, the more help you will likely get.
Sean de Wolski
Sean de Wolski 2012-10-16

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