Understanding, organizing, and validating data directly affects the accuracy of stories. New tools make cleaning accessible ...

We show that, compared with surgeon predictions and existing risk-prediction tools, our machine-learning model can enhance ...

The @ symbol can also appear in regular formulas outside of tables when Excel thinks you're trying to reference a single value from a range. If you see it pop up unexpectedly, it usually means Excel ...

Excel offers no such constraint. If someone is determined to enter bad data, they can simply paste values over a validated ...