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Gallery of Plots
Plot Frame


Gallery of Plots

PSI-Plot and ProStat support various quality control charts. Each QC chart will be created at user specified sigma count. The supported types of QC chart are listed as follow:

QC charts for measurements without subgroup: X Chart(R), X Chart(s), Moving Range, Moving Average

QC charts for measurements with subgroup: R-Chart, S-Chart, X Bar Chart, S-Sq Chart

QC charts for attributes: P-Chart, NP-Chart, C Chart, and U-Sq Chart


QC Chart with 3 Sigma


QC Chart with 5 Sigma


QC Chart



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