How can you tell? If you don’t see a line of code ... The above code generates a table from my_filtered_data. The data set and table will update whenever a user types something into the search ...

Degrees of freedom are the number of independent variables that can ... and you can determine the correct critical value by using a data set's t distribution with the degrees of freedom.

Thus, if you use program statements to create new variables, their values in each observation are missing until you assign the values in an assignment statement, as shown in the following DATA step: ...