Introduction | The Measures | The Data | Loading Example Data | Loading your own data | Inspecting Table Structure | Review the structure of a loaded dataset | View the first few rows | Data types | Example: Converting character dates to proper date formats | Example: Converting numbers stored as character strings | Example: Replacing empty strings with NA | Why these steps matter | Dealing with problematic column names | Understanding Required Inputs | Running the NEMSQA Measures Using nemsqar | nemsqar workhorse functions | Running the wrapper function for Asthma‑01 | Running the asthma_01 wrapper function using grouping | Working with the *_population() functions | Using asthma_01_population() to examine the target population | Examine a summary of counts for the NEMSQA population | Asthma-01 summary of attributes of the target population | Using filter_process from the population functions | Common Pitfalls for New R Users | Incorrect variable types | Unintended name changes | Missing required tables | Duplicated records | Next Steps