Identifying the first number in a series in the same vector?

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Janet Wallace
Janet Wallace 2021-12-6
评论： Janet Wallace 2021-12-6
I need to identify the first number in a series that is within the same vector such as:
1.97756000000000
1.97784000000000
1.97856000000000
1.97884000000000
1.97912000000000
1.97920000000000
6.28712000000000
6.28968000000000
6.29108000000000
6.29148000000000
6.29180000000000
11.6901600000000
11.6903200000000
11.6904800000000
11.6906400000000
11.6910400000000
16.0839200000000
16.0843600000000
16.0850400000000
16.0852400000000
16.0856800000000
20.4872000000000
20.4883200000000
20.4885600000000
20.4887200000000
I need to list the first 1, 6, 11, 16...etc. Any help is appreciated for this basic question!

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采纳的回答

Jon
Jon 2021-12-6
编辑：Jon 2021-12-6
define your vector as x then
y = unique(floor(x))
floor gets rid of the decimal part, unique gets rid of the repetitions

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