Silverlight Analytics Controls - Histogram

The Histogram chart is designed to plot the frequency of observations. The Histogram control contains the same statistics as the time series charts (Individuals, Moving Range, Xbar, Range, Standard Deviation...) as the Histogram is often used in conjunction with those charts. Three of the features of the Histogram control are discussed below. Other features are listed in the documentation and API:


Limits and Bins

The control allows for USL and LSL limits to be set for a series. These limits are used when calculating certain statistics. In the example below, these limits can be shown on the control. The histogram also allows for the number of bins to be changed, a cumulative histogram, a normal curve to be displayed, and several other features are built in as well.

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Statistics

The Histogram 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. An example of a control with the statistics box is shown below (click on Series 1 to show the statistics):

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The statistics that are currently supported by the Histogram control are:

  • Above USL
  • CL
  • Count
  • Below LSL
  • Count
  • Cp
  • Cpk
  • Cpl
  • Cpm
  • Cpu
  • Cr
  • DNS
  • EstStdDev
  • Grand Average
  • LCL
  • LSL
  • Maximum
  • Mean
  • Median
  • Minimum
  • NSL
  • PCI
  • Percent non-Conforming High
  • Percent non-Conforming Low
  • Percent non-Conforming Ppm
  • Percent non-Conforming Total
  • Pp
  • Ppk
  • Ppl
  • Ppm
  • Ppu
  • Pr
  • Range
  • Specification Tolerance In Measurement Units
  • Specification Tolerance In Sigma Units
  • Standard Deviation
  • UCL
  • USL
  • Variance
  • Zl
  • Zmin
  • Zu