titleLabelOffsetX (titleLabelOffsetX) {
        if (!arguments.length) {
            return this._titleLabelOffsetX;
        }
        this._titleLabelOffsetX = titleLabelOffsetX;
        return this;
    }
Get of set the x offset (horizontal space between right edge of row and right edge or text.
@param {Number} [titleLabelOffsetX=2]
@returns {Number|RowChart}