Write function to expand array and average adjacent entries.

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.

[Matt Kindig]

Sounds good. Go for it.

Answer 1

[Matt J]

Hint: interp1

Answer 2

[Matt Fig]

Please show what you have done so far for your homework problem....

The more effort you show, the more help you will likely get.

Answer 3

[Sean de Wolski]

I answered this here:

http://www.mathworks.nl/matlabcentral/answers/4929