Trying to Create Hotelling T2 Charts in Excel?

QI Macros can create them for you!

Create an Hotelling T2 Chart using QI Macros:

  1. Select your data.
  2. Click on QI Macros menu > Control Charts (SPC) > Special> Hotelling T2.
  3. QI Macros will do the math and draw the chart for you.
  4. QI Macros will also turn any unstable points or conditions red.

Go Deeper: Hotelling Chart Evaluates Two Interacting Measurements Simultaneously.

Similar to the XmR Chart, the Hotelling T2 Chart evaluates the covariances of the ranges between each of the two measures and the covariances of the actual data points. This gives two charts that are similar to the average and Range in the XmR.

Imagine for a moment that you are measuring the location of a hole drilled in a sheet of metal. It could be left or right, up or down. It's possible that both measurements, taken separately, could be stable and predictable, but the two together could have outliers.

To run a hotelling chart in QI Macros, select two columns of data and then select Hotelling T2 Chart from the Control Charts (SPC) > Special (CUSUM, EWMA) menu. QI Macros will create two charts:

Hotelling T2 control chart


Hotelling Chart Template in QI Macros for Excel:

Find the Hotelling Chart template by clicking on the QI Macros menu > Control Chart Templates > Special (CUSUM, EWMA) > Hotelling Chart:

control-chart-hotelling-menu

Stop Struggling with Hotelling T2 Charts!
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