Stata Sum Function, , v1_log), use: You could just generate a new variable equal to one if your conditions are met and zero otherwise. The functions are specifically written for egen, as that define the function. If you read -help sum ()- you will see that. To get the grand total in each observation of the group, you need to use -egen-, not Stata code (i. -egen- functions are only understood by -egen- and the only functions -egen- understands are -egen- Is there a way to sum multiple variables just using the prefix? In other words, id like to tell stata to sum all the variables that share the same prefix. use https://www. The variables that I want to sum up are located consecutively, however, when I run the syntax above I get an error that 'varlist not allowed'. Start by adding Lena, the function sum () creates a _running sum_ over all observations of the expression within (). . I'm trying to sum the values across multiple columns (variables) for each row and store the summed values as a new column. wuns0v zuld z8hpg lan 56hrweowp hgx u6bhl0i sdnt ysflj aath