/// <summary> /// Selects a set of SQL expressions. This is a variant of `select` that accepts SQL expressions. /// /// df.SelectExpr("colA", "colB as newName", "abs(colC)") /// /// </summary> /// <param name="columnExpressions"></param> /// <returns></returns> public DataFrame SelectExpr(params string[] columnExpressions) { return(new DataFrame(dataFrameProxy.SelectExpr(columnExpressions), sparkContext)); }