.Net Analytics Controls  Standard Deviation
The Standard Deviation chart is designed to plot time series data that consists of multiple observations (called samples in the control) per subgroup. The value plotted is the standard deviation of the observations/samples within a subgroup. The control allows for data to be plotted via index, code, datetime, or name. Some of the features of the Standard Deviation control are
discussed below. Other features are listed in the
documentation and
API:
Multiple Series
Multiple series may be added to the chart. The series can be shown together, as seen in the example below, or series can have their visiblily turned off so that only one series is shown at a time.
Interactive chart: Move mouse over subgroups to see tooltips and click on subgroups to see dialog

Split Limits
The control allows for the limits to be split. An example of this can be seen in
the chart below. The chart on the left is the Xbar which contains the same data. Split limits
are used when a process changes at a particular observation/sample. The limits
can be split at an index, code, or datetime.
Interactive chart: Move mouse over subgroups to see tooltips and click on subgroups to see dialog

Interactive chart: Move mouse over subgroups to see tooltips and click on subgroups to see dialog

Run Rules
There are nine rules built into the controls (including the Western
Electric rules) and users can build custom rules as well. The first run rule
(check to see if a sample is above the UCL, the upper control limit, or below
the LCL, the lower control limit) can be seen in the example below. The chart on the left is the Xbar which contains the same data.
Interactive chart: Move mouse over subgroups to see tooltips and click on subgroups to see dialog

Interactive chart: Move mouse over subgroups to see tooltips and click on subgroups to see dialog

Zones
The control allows for zones (A, B, and C) to be shown. The zones represent 1, 2, and 3 sigma deviations from the center line. An example is shown below. The chart on the left is the Xbar which contains the same data.
Interactive chart: Move mouse over subgroups to see tooltips and click on subgroups to see dialog

Interactive chart: Move mouse over subgroups to see tooltips and click on subgroups to see dialog

Statistics
The Standard Deviation control supports a number of statistics. These can be retrieved
at any point programmatically, or they can be shown in the statistics box. If
you require a statistic that is not in the control, you may contact our
Support department, and we can work with you in
adding the statistic. The statistics that are currently supported by the Standard Deviation control are:
 Above USL
 AndersonDarling
 Average Squared Deviation
 CL
 Count
 Below LSL
 Count
 Cp
 Cpk
 Cpl
 Cpm
 Cpu
 Cr
 Dixon
 DNS
 EstStdDev
 Grand Average
 Kurtosis
 LCL
 LSL
 Maximum
 Mean
 Median
 Minimum
 NSL
 PCI
 Percent nonConforming High
 Percent nonConforming Low
 Percent nonConforming Ppm
 Percent nonConforming Total
 Pp
 Ppk
 Ppl
 Ppm
 Ppu
 Pr
 Range
 RMS Deviation
 Skewness
 Standard Deviation
 Specification Tolerance In Measurement Units
 Specification Tolerance In Sigma Units
 Standard Deviation
 UCL
 USL
 Variance
 Zl
 Zmin
 Zu