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public interface IMultivariateOp
Provides access to members that perform multivariate analysis on raster data.
| Method Summary | |
|---|---|
void |
bandCollectionStats(IGeoDataset rasterBands,
String dataFile,
boolean computeMatrices)
Calculates the statistics for a raster band collection. |
IGeoDataset |
classProbability(IGeoDataset rasterBands,
String signatureFile,
int aPrioriWeighting,
Object aPrioriFile,
Object outputScalingFactor)
Creates probability layers, for each class in the signature file. |
void |
createSignatures(IGeoDataset rasterBands,
IGeoDataset sampleDataset,
String signatureFile,
boolean computeCovariance)
Creates an ascii signature file of classes defined in an input dataset. |
void |
dendrogram(String signatureFile,
String dendrogramFile,
boolean computeWithVariance,
Object lineWidth)
Constructs a tree diagram showing attribute distances between sequentially merged classes in a signature file. |
void |
editSignatures(IGeoDataset rasterBands,
String signatureFile,
String signatureRemapFile,
String newSignatureFile,
Object sampleInterval)
Edits and updates a signature file. |
void |
isoCluster(IGeoDataset rasterBands,
String signatureFile,
int numberClasses,
Object numberIterations,
Object minimumClassSize,
Object sampleInterval)
Uses isodata clustering to get characteristics of natural cell groupings in multi-dimension attribute space. |
IGeoDataset |
mLClassify(IGeoDataset rasterBands,
String signatureFile,
boolean createConfidenceOutput,
int aPrioriWeighting,
Object aPrioriFile,
Object rejectFraction)
Performs a maximum-likelihood classification on a raster band collection. |
IGeoDataset |
principalComponents(IGeoDataset rasterBands,
String dataFile,
Object numberComponents)
Performs principal components analysis on a raster band collection. |
| Method Detail |
|---|
IGeoDataset classProbability(IGeoDataset rasterBands,
String signatureFile,
int aPrioriWeighting,
Object aPrioriFile,
Object outputScalingFactor)
throws IOException,
AutomationException
|
rasterBands |
name of the input rasterBand to derive the probability layers |
|
signatureFile |
name of the signature file whose class signatures are used to generate the posteriori probability layers in the output stack |
|
aPrioriWeighting |
enumeration specifying the a priori probabilities, or weights, for the classes represented in the signature file The enumeration types are: esriGeoAnalysisEqual all classes will have the same a priori probability esriGeoAnalysisSample a priori probabilities will be proportional to the number of cells in each class relative to the total number of cells sampled in all classes in the signature file esriGeoAnalysisAPrioriFile a priori probabilities will be assigned to each class from an aPrioriFile ASCII file |
|
[aPrioriFile] |
an ASCII file containing a priori probabilities for the classes of the input signature file |
|
[outputScalingFactor] |
factor for scaling the range of values in the output probability layers The outputScalingFactor is a number such as 2, 10, or 5.5 and can either be an integer or floating point value. |
rasterBands - A reference to a com.esri.arcgis.geodatabase.IGeoDataset (in)signatureFile - The signatureFile (in)aPrioriWeighting - A com.esri.arcgis.spatialanalyst.esriGeoAnalysisAPrioriEnum constant (in)aPrioriFile - A Variant (in, optional, pass null if not required)outputScalingFactor - A Variant (in, optional, pass null if not required)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
void createSignatures(IGeoDataset rasterBands,
IGeoDataset sampleDataset,
String signatureFile,
boolean computeCovariance)
throws IOException,
AutomationException
|
rasterBands |
name of a multiband Raster to derive class signatures using class samples defined by the sampleDataset |
|
sampleDataset |
name of the input Raster, RasterDataset, RasterBand, or RasterDescriptor or FeatureClass, FeatureClassDescriptor delineating the set of class samples |
|
signatureFile |
name of the output signature file |
|
[computeCovariance] |
Boolean specifying whether the covariance matrices will be calculated If True, then the covariance matrices and the means for all classes of the sampleDataset will be computed. If False, only the means for all classes of the sampleDataset will be calculated. |
rasterBands - A reference to a com.esri.arcgis.geodatabase.IGeoDataset (in)sampleDataset - A reference to a com.esri.arcgis.geodatabase.IGeoDataset (in)signatureFile - The signatureFile (in)computeCovariance - The computeCovariance (in, optional, pass false if not required)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
void dendrogram(String signatureFile,
String dendrogramFile,
boolean computeWithVariance,
Object lineWidth)
throws IOException,
AutomationException
|
signatureFile |
name of the input signature file whose class signatures are used to produce a dendrogram.A “.gsg” extension is required. |
|
dendrogramFile |
the path to an output dendrogram file. The file contains a table of distances between pairs of sequentially merged classes and a graphical representation showing the relationships among classes and the hierarchy of the merging. |
|
[computeWithVariance] |
A Boolean specifying the manner in which the distances between classes in multi-dimensional attribute space are defined. If True, The distances between classes will be computed based on the variances and the Euclidean distance between the means of their signatures. If False, The distances between classes will be determined only by the Euclidean distances between the means of the class signatures. |
|
[lineWidth] |
The value specifies the width of the graph based on the number of characters. The default value of 78, is also the minimum valid number to be entered. |
signatureFile - The signatureFile (in)dendrogramFile - The dendrogramFile (in)computeWithVariance - The computeWithVariance (in, optional, pass false if not required)lineWidth - A Variant (in, optional, pass null if not required)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
void editSignatures(IGeoDataset rasterBands,
String signatureFile,
String signatureRemapFile,
String newSignatureFile,
Object sampleInterval)
throws IOException,
AutomationException
|
rasterBands |
the name of a multiband Raster from which the signature file to be edited was created |
|
signatureFile |
the name of the input signature file to be edited |
|
signatureRemapFile |
an ASCII remap table containing the pairs of class IDs to be merged, renumbered, or deleted |
|
newsignatureFile |
the name of the output signature file |
|
[sampleInterval] |
the interval for sampling A common interval is 10. |
rasterBands - A reference to a com.esri.arcgis.geodatabase.IGeoDataset (in)signatureFile - The signatureFile (in)signatureRemapFile - The signatureRemapFile (in)newSignatureFile - The newSignatureFile (in)sampleInterval - A Variant (in, optional, pass null if not required)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
void isoCluster(IGeoDataset rasterBands,
String signatureFile,
int numberClasses,
Object numberIterations,
Object minimumClassSize,
Object sampleInterval)
throws IOException,
AutomationException
|
rasterBands |
name of a multiband Raster signatures to be used for clustering |
|
SignatureFile |
name of the output signature file |
|
numberClasses |
the number of classes to group the cells |
|
[numberIterations] |
the number of iterations of the clustering process. A commonly used number of iterations is 20 |
|
[minimumClassSize] |
the minimum number of cells in a valid class. A commonly used minimum class size is 20 |
|
[sampleInterval] |
the interval of sampling. A common sample interval is 10 |
rasterBands - A reference to a com.esri.arcgis.geodatabase.IGeoDataset (in)signatureFile - The signatureFile (in)numberClasses - The numberClasses (in)numberIterations - A Variant (in, optional, pass null if not required)minimumClassSize - A Variant (in, optional, pass null if not required)sampleInterval - A Variant (in, optional, pass null if not required)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
IGeoDataset mLClassify(IGeoDataset rasterBands,
String signatureFile,
boolean createConfidenceOutput,
int aPrioriWeighting,
Object aPrioriFile,
Object rejectFraction)
throws IOException,
AutomationException
|
rasterBands |
name of a multiband Raster to perform the classification |
|
signatureFile |
name of the signature file whose class signatures are used by the maximum-likelihood classifier when performing the classification of the rasterBands |
|
createConfidenceOutput |
an optional output Raster showing the certainty of the classification in 14 levels of confidence with the lowest values representing the highest reliability If the Boolean is set to True, the output Raster will be created. |
|
APrioriWeighting |
an esriGeoAnalysisAPrioriEnum specifying the type of a priori probabilities, or weights, for the classes represented in the aPriorFile The enumeration types are: esriGeoAnalysisEqual all classes will have the same a priori probability esriGeoAnalysisSample a priori probabilities will be proportional to the number of cells in each class relative to the total number of cells sampled in all classes in the signature file esriGeoAnalysisAPrioriFile a priori probabilities will be assigned to each class from an aPrioriFile ASCII file |
|
[aPrioriFile] |
a file containing user-defined a priori probabilities for the classes |
|
[rejectFraction] |
the portion of cells that will remain unclassified due to the lowest possibility of correct assignment The most common reject fraction is 0.0, indicating every cell will be classified. The 14 valid entries are 0.0, 0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 0.75, 0.9, 0.95, 0.975, 0.99, 0.995. |
rasterBands - A reference to a com.esri.arcgis.geodatabase.IGeoDataset (in)signatureFile - The signatureFile (in)createConfidenceOutput - The createConfidenceOutput (in, optional, pass false if not required)aPrioriWeighting - A com.esri.arcgis.spatialanalyst.esriGeoAnalysisAPrioriEnum constant (in, optional, pass 1 if not required)aPrioriFile - A Variant (in, optional, pass null if not required)rejectFraction - A Variant (in, optional, pass null if not required)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
IGeoDataset principalComponents(IGeoDataset rasterBands,
String dataFile,
Object numberComponents)
throws IOException,
AutomationException
|
rasterBands |
name(s) of the input rasterband to calculate statistics. The Rasterbands must have common intersecton. |
|
dataFile |
name of the output ASCII fille where the principal components parameters will be stored. |
|
[numberComponents] |
number of principle components. The default is equal to the number of input rasterbands |
rasterBands - A reference to a com.esri.arcgis.geodatabase.IGeoDataset (in)dataFile - The dataFile (in)numberComponents - A Variant (in, optional, pass null if not required)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
void bandCollectionStats(IGeoDataset rasterBands,
String dataFile,
boolean computeMatrices)
throws IOException,
AutomationException
|
rasterBands |
name(s) of the input rasterband to calculate statistics. The Rasterbands must have common intersecton. |
|
dataFile |
name of the output statistics file. An extension is required. Any extension can be used, but ".txt" is reccommended |
|
[computeMatrices] |
a Boolean specifying whether covariance and correlation matices are calculated. If TRUE, In addition to the standard statistics calculated, the covariance and correlation matieces will also be determined If FALSE, Only the basic statistical measures (minimum, maximum, mean, and standard deviation) will be calculated for every layer. |
rasterBands - A reference to a com.esri.arcgis.geodatabase.IGeoDataset (in)dataFile - The dataFile (in)computeMatrices - The computeMatrices (in, optional, pass false if not required)
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.
|
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