## join

Deprecated: use join(null,ds2) instead.

## join

join( QDataSet ds1, QDataSet ds2 ) → QDataSet

Join two rank N datasets to make a rank N+1 dataset, with the first dimension having two elements. This is the anti-slice operator. If the first dataset is rank N+1 JoinDataset and the other is rank N, then the rank N dataset is added to the rank N+1 dataset. This is under-implemented right now, and can only join two rank N datasets or if the first dataset is the result of a join.

### Parameters

ds1 - rank N dataset, or null
ds2 - rank N dataset

### Returns:

rank N+1 dataset

### See Also:

slices
concatenate
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