Flight Lab / Deploy and archive / 05

Lesson 05 of 05 · about 5 min

Robust z

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A robust z is 0.6745 times (sample − median) / MAD. The 0.6745 makes the MAD comparable to a standard deviation for a normal cloud. This archive flags a point when the absolute robust z exceeds 3.5.

The median is 10 and the MAD is 2. Call the sample at 24 and the sample at 18.

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