Time Series Controls

Add a New Subgroup

Samples for the subgroup based control charts must be added to a subgroup. The time series controls of the .Net Analytics package that are based on subgroups include the following:

Xbar (XbarChart)
Range (RangeChart)
Standard Deviation (StdDevChart)
RMS Deviation (RMSDevChart)

In order to add samples (observations) to these charts, the samples must be added first to a subgroup. The series classes of these respective charts are:

The subgroup classes are:

The first step is to include the necessary namespaces for the controls and add a new series.

Add a Subgroup

Below, we will add a subgroup to a Xbar series (named xsSeries in the examples below) and to a Xbar chart (named xbarChart in the examples below). The process is similar for the other charts listed above:

[Visual Basic]

' Create a new subgroup
Dim xsSubgroup As New XbarSubgroup()
' Add the 
                  subgroup to the series
xsSeries.Add(xsSubgroup)

' An alternative is 
                  to add the subgroup directly to the series
xsSeries.Add("Subgroup 2")

                  

                  ' Another alternative is to add the subgroup directly to the series collection 
                  at the ith (0 below) series

                  xbarChart.SeriesCollection(0).Add("Subgroup 3")

[Visual C#]

// Create a new subgroup
XbarSubgroup xsSubgroup = new XbarSubgroup();
// Add the 
                  subgroup to the series
xsSeries.Add(xsSubgroup);

// An alternative is 
                  to add the subgroup directly to the series
xsSeries.Add("Subgroup 2");

                  

                  // Another alternative is to add the subgroup directly to the series collection 
                  at the ith (0 below) series

                  xbarChart.SeriesCollection[0].Add("Subgroup 3");

After the subgroups have been added, and samples have been added to the subgroups as described here, the resulting chart should look similar to the following: