selecting mid points

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kash
kash 2012-1-7
I have a values
F=[3 5 6 15 17 21 35 45 46 51 56 57 66 70 71 ]
now i want to calculate the mid points that is
i have to take 2 values that is(3,5)and (5,6) cal mid point(4,5.5)
next (5,6),(6,15) mid point is(5.5,10.5)
(6,15)and(15,17) mid point(10.5,16)
(15,17)and(17,21) mid point is(16,19)
and so on
please help

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采纳的回答

Image Analyst
Image Analyst 2012-1-7
Use convolution (a sliding window filter), conv():
F=[3 5 6 15 17 21 35 45 46 51 56 57 66 70 71 ]
F_mid = conv(F, [0.5 0.5], 'valid')
Results:
F =
3 5 6 15 17 21 35 45 46 51 56 57 66 70 71
f_mid =
Columns 1 through 12
4.0000 5.5000 10.5000 16.0000 19.0000 28.0000 40.0000 45.5000 48.5000 53.5000 56.5000 61.5000
Columns 13 through 14
68.0000 70.5000
  1 个评论
kash
kash 2012-1-7
Thanks a lot now can u please tell how to combine as
4,5.5
5.5,10.5
10.5,16
so on

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