NaN or null values should not be removed from data series

Description

Not all data is perfect. 🤷

When we pass data to our charts, we ensure to validate the data has no NaN values before getting the charts to display, however, missing points (like NaN) are also valuable information for users, as missing data can convey that an issue must be addressed.

echarts provides a way to display missing data points in a line, and we should do the same, so our charts are more powerful in representing problems in the data displayed: