Control chart
Tell the normal ups and downs of a process from a real signal that needs action. The chart draws the limits for you and names every point that breaks a rule.
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STEP 1
Your data, in time order
Excel (.xlsx), CSV, or a file saved from this tool.
#
Date or label
Value
1
2
3
4
5
6
7
8
9
10
At least 20 points for limits you can trust; fewer still draws, with a warning. Up to 200.
STEP 2
Options
Chart type
Individuals (I-MR)One value per day, batch or order. The right choice for most improvement data.