I want to know how to access the value weighted return function from the SASECRSP library my data is of the following form      obs       |ticker |      date      | volume  |price   1          |  aapl |05/01/2023 |  121      | 100$ 2           | civi   |05/01/2023  |  34        | 200$ . . . 200000 | .....|.....................|.............|...........   so I want to add a column in my data set that representes the value weighted return for the given stock for that specific date in the previous data dell, but I dont understand the documentation for retrieving the datat from the SASECRESP library      Best Regards,  Jose Fernandez ... View more