Looping through a vector within the select function

[gueyenono]

Unfortunately, the fact that your question is not reproducible makes it a bit difficult for us to provide any help. We have no information about the count and population datasets or the ageadjust.direct function. Helping you becomes easier if your question is reproducible. Take a look at this if you are not familiar with the term:

FAQ: What's a reproducible example (`reprex`) and how do I create one?

Why reprex? Getting unstuck is hard. Your first step here is usually to create a reprex, or reproducible example. The goal of a reprex is to package your code, and information about your problem so that others can run it and feel your pain. Then, hopefully, folks can more easily provide a solution. What's in a Reproducible Example? Parts of a reproducible example: background information - Describe what you are trying to do. What have you already done? complete set up - include any library() calls and data to reproduce your issue. data for a reprex: Here's a discussion on setting up data for a reprex make it run - include the minimal code required to reproduce your error on the data…