2D Chart for WinForms | ComponentOne
C1.Win.C1Chart.4.8 Assembly / C1.Win.C1Chart Namespace / C1Chart Class / GenerateHistogramData Method / GenerateHistogramData(Double[],Double,Double,Int32,Double,Double[],Double[],Double[]) Method
Specifies a double array containing data values.
Specifies the starting boundary of the first interval.
Specifies the width of each interval.
Specifies the number of consecutive, uniform width intervals.
Specifies the interval width to be used for normalization. If less than or equal to zero, normalization is not performed.
A reference to a double array which will receive the actual ordered and trimmed boundaries of the intervals making up the histogram. This array is generated internally from the input Boundaries array.
A reference to a double array which will receive the count of data points that fall into the interval specified by the IntervalBounds array. The IntervalCounts array will necessarily have one less element than the IntervalBounds array.
A reference to a two element double array which will receive the count of data points that fall outside the specified Boundaries array. Element zero (0) of the array receives the count of data points with values less than the lowest value in the Boundaries array. Element one (1) of the array receives the count of data points with values greater than the highest value in the Boundaries array.

In This Topic
    GenerateHistogramData(Double[],Double,Double,Int32,Double,Double[],Double[],Double[]) Method
    In This Topic
    Generates histogram data from raw data and a series of interval boundaries specified by a starting value, an interval width and the number of intervals.
    Syntax
    'Declaration
     
    Public Overloads Shared Function GenerateHistogramData( _
       ByVal RawData() As System.Double, _
       ByVal Start As System.Double, _
       ByVal IncrementalWidth As System.Double, _
       ByVal Count As System.Integer, _
       ByVal NormalizationWidth As System.Double, _
       ByRef IntervalBounds() As System.Double, _
       ByRef IntervalCounts() As System.Double, _
       ByRef BoundaryIntervals() As System.Double _
    ) As System.Boolean
    public static System.bool GenerateHistogramData( 
       System.double[] RawData,
       System.double Start,
       System.double IncrementalWidth,
       System.int Count,
       System.double NormalizationWidth,
       ref System.double[] IntervalBounds,
       ref System.double[] IntervalCounts,
       ref System.double[] BoundaryIntervals
    )

    Parameters

    RawData
    Specifies a double array containing data values.
    Start
    Specifies the starting boundary of the first interval.
    IncrementalWidth
    Specifies the width of each interval.
    Count
    Specifies the number of consecutive, uniform width intervals.
    NormalizationWidth
    Specifies the interval width to be used for normalization. If less than or equal to zero, normalization is not performed.
    IntervalBounds
    A reference to a double array which will receive the actual ordered and trimmed boundaries of the intervals making up the histogram. This array is generated internally from the input Boundaries array.
    IntervalCounts
    A reference to a double array which will receive the count of data points that fall into the interval specified by the IntervalBounds array. The IntervalCounts array will necessarily have one less element than the IntervalBounds array.
    BoundaryIntervals
    A reference to a two element double array which will receive the count of data points that fall outside the specified Boundaries array. Element zero (0) of the array receives the count of data points with values less than the lowest value in the Boundaries array. Element one (1) of the array receives the count of data points with values greater than the highest value in the Boundaries array.

    Return Value

    A boolean indicating success or failure.
    Exceptions
    ExceptionDescription
    Thrown when RawData is null.
    Thrown when the RawData array is too short.
    Remarks
    Each pair of consecutive interval boundary values is used to specify an interval. This results in one less interval than the number of boundary points. For example, if Start=1, IncrementalWidth=2 and Count=4, then intervals bounded by 1,3,5,7,9 are created, resulting in 4 intervals of 1-3, 3-5, 5-7, and 7-9.

    Since all intervals are of equal width, it is not necessary to perform interval count normalization when only a single set of data is used. However, if multiple sets of data are used, and different interval widths are supplied, normalization provides a more consistent result.

    See Also