ArcEngine 中能调用地统计分析模块中的Exploratory Spatial Data Analysis (ESDA) 工具吗？

<P>我用ArcEngine9.0+VB.NET编程画等值面和等值线。代码如下：<BR>        Dim pInRaster As IRaster<BR>        Dim pSemiVariogram As IGeoAnalysisSemiVariogram<BR>        pSemiVariogram = New GeoAnalysisSemiVariogram<BR>        Dim dRange As Double<BR>        Dim dSill As Double<BR>        Dim dNugget As Double<BR>        Dim dLag As Double<BR>        dRange = 481.49<BR>        dSill = 1.2116<BR>        dNugget = 0.52669<BR>        dLag = 1.0<BR>        pSemiVariogram.Lag = dLag<BR>        pSemiVariogram.DefineVariogram(esriGeoAnalysisSemiVariogramEnum.esriGeoAnalysisSphericalSemiVariogram, dRange, dSill, dNugget)</P>
<P>       pInRaster = pIntOp.Variogram(pFDescr, pSemiVariogram, pRadius, False)</P>
<P>需要设置合适的dRange,dNugget,dSill ,dLag，否则，会出错“unable to estimate the Semi-Variogram ”<BR>怎么编程获取krige插值的Lag,Nugget,Range,Partial Sill？或者在ArcEngine中能调用</P>
<P>Exploratory Spatial Data Analysis (ESDA) tools in Geostatistical Analyst 或相应接口去分析数据，得到合适的Lag,Nugget（块金值）,Range(主要范围),Partial Sill(局部岩床)吗？</P>

<PRE><I>可以看看下面的例子</I></PRE><PRE><I><a href="http://webhelp.esri.com/arcgisdesktop/9.1/index.cfm?id=3216;pid=3205;topicname=Variogram" target="_blank" >http://webhelp.esri.com/arcgisdesktop/9.1/index.cfm?id=3216;pid=3205;topicname=Variogram</A></I></PRE><PRE><I></I> </PRE><PRE><I>'Create the RasterInterpolationOp object</I>
Dim pInterpolationOp As IInterpolationOp
Set pInterpolationOp = New RasterInterpolationOp

<I>'Create the input point object</I>
Dim pInputDatasetFC As IFeatureClass

<I>'Calls function to open the input point dataset from disk</I>
Set pInputDatasetFC = OpenPointDataset(&acirc;

谢谢帝国总统<BR>