Returns a frame with columns shifted by the specified offset. When the offset is positive, the values are shifted forward and first `offset` keys are dropped. When the offset is negative, the values are shifted backwards and the last `offset` keys are dropped. Expressed in pseudo-code: result[k] = series[k - offset] ## Parameters - `offset` - Can be both positive and negative number. - `frame` - The input frame whose columns are to be shifted. ## Remarks If you want to calculate the difference, e.g. `df - (Frame.shift 1 df)`, you can use `Frame.diff` which will be a little bit faster. [category:Frame transformations]

public static Frame<R, C> Shift<R, C>(
	int offset,
	Frame<R, C> frame
)