FREQUENCY not working as expected

[mjp0]

FREQUENCY() is giving me weird results. I feed in 5 numbers as data, i.e. [ 4, 5, 5, 7, 10 ] and my bins are [ [ 4, 6 ], [ 6, 8 ], [ 8, 10 ], [ 10, 12 ], [ 12, 14 ] ] and I get back [ 1, 2, 0, 1, 0, 1, 0, 0, 0, 0, 0 ].

So with 5 items and with 5 buckets I get 11 values back. This is not how FREQUENCY works in Excel.

Any ideas?

edit: quick fix with lodash (note that if value is same as upper bin value, it will be moved to the next bin):

var frequencies = []
    _.each(bins, b => {
        var frequency = 0
        _.each(values, v => {
            if(b[0] <= v  && b[1] > v) {
                frequency++
            }
        })
        frequencies.push({bin: b, frequency: frequency})
    })