CUSUM / QSum Question.

[Guest dinosaur_uk]

Hi there,

 

This is my first post here, so please dont bite my head off. I have a problem here, over time I have a equipment with I need to monitor. I was thinking of using CUSUM to detect a upward or downward trend. I have been using the CUSUM, which I have not been able to get to work. Can anyone point me in the right direction?

 

Sample Data:

591.7753

593.463

587.9513

587.8231

592.0743

591.9248

580.8374

588.1008

582.2474

591.1344

589.639

589.9167

582.5037

597.2656

592.0743

588.5281

584.3837

589.0408

588.7631

583.3156

581.5424

588.3785

595.2147

599.0387

599.5941

598.4832

597.9705

596.5819

593.3134

589.4467

599.8718

586.4345

584.7041

596.8383