Generate XmR Chart.

Generate simple XmR charts for your time series data to flag likely anomalies.

How XmR charts work.

XmR charts are a type of control chart used to monitor process stability over time. The "X" represents individual data points, while the "mR" refers to the moving range between consecutive data points.

The X chart plots individual measurements over time, helping to identify trends, shifts, or outliers in the process. The mR chart plots the moving range, which is the absolute difference between consecutive data points, helping to detect sudden changes in process variability.

By using both charts together, you can monitor the process level (X chart) and its variation (mR chart) to ensure the process remains stable and in control.

A marketer might find these charts useful for tracking key performance metrics, such as website traffic or conversion rates. For example, you can use XmR charts to monitor potential anomalies in monthly traffic data, like sudden drops or spikes due to changes in search engine algorithms or marketing campaigns. This helps in quickly identifying and addressing issues or capitalizing on positive trends.