Tabulate shortens array. Why?

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Pete Ronklis
Pete Ronklis 2018-1-9
编辑： per isakson 2018-1-10
I use tabulate command like this:
a = array(352360x1)
b = tabulate(a)
b = array *(19231x3)*
Why is B array shorter than A ? Thanks

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回答（1 个）

Roger Stafford
Roger Stafford 2018-1-9
编辑：Walter Roberson 2018-1-9
The number of rows in the output of 'tabulate' is the number of unique values in the input, so there must have been 19231 unique values among the 352360 elements of your 'a' array. Read the description of 'tabulate' at:
https://www.mathworks.com/help/stats/tabulate.html

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