How do you create a new vector using every other number from your original vector. Including the first number of the original vector.

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Joshua Cook
Joshua Cook 2018-1-29
编辑： per isakson 2018-1-29
How do you create a new vector using every other number from your original vector. Including the first number of the original vector.

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per isakson
per isakson 2018-1-29
编辑：per isakson 2018-1-29
An example
>> vec = randi(3,1,18) % test data
vec =
Columns 1 through 14
3 3 1 3 2 1 1 2 3 3 1 3 3 2
Columns 15 through 18
3 1 2 3
>> vec( 1 : 2 : end ) % every other value
ans =
3 1 2 1 3 1 3 3 2
a better example
>> vec = 1:18;
>> vec( 1 : 2 : end )
ans =
1 3 5 7 9 11 13 15 17

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