Cluster img and Faq does software stop working if maintenance expires: Difference between pages

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===Purpose===
===Issue:===


Perform automatic clustering of image using sample distances.
Does the software stop working if my maintenance expires?


===Synopsis===
===Possible Solutions:===


:[clas,basis,info,h] = cluster_img(x,nclusters,options)
Many of our software products come with a "maintenance agreement". The details of this service are given on the [http://www.eigenvector.com/maintagreement.htm Maintenance Agreement Page.]  
:clas = cluster_img(x,basis,options)


===Description===
If your maintenance expires, the software does '''''not''''' stop working. Expired maintenance means you no longer have free access to new releases nor access to our help desk support.


Automatically identifies unique pixels in a given image and classifies all other pixels as to which of the unique pixels they are closest to. Pixels are chosen using the DISTSLCT algorithm, the selected samples are normalized to unit length and the remaining pixels are projected onto that basis to determine distances. Although significantly faster, this algorithm returns slightly different results than knn clustering.
For more information, also see the [http://www.eigenvector.com/evriblog/?p=19 Blog post about the Maintenance Program]
====Inputs====
* '''[clas,basis,info,h] = cluster_img(x,nclusters,options)''' - The data to cluster (x), the total number of clusters to form (nclusters), and an optional (options) structure (see below), or
* '''[clas,basis,info,h] = cluster_img(x,max_fract,options)''' - The data to cluster (x), the maximum fraction of samples allowed in a cluster (max_fract), and an optional (options) structure (see below), or
* '''clas = cluster_img(x,basis,options)''' - A "prediction" call given the data to cluster (x), a previously calculated basis set returned by cluster_img (basis), and an optional (options) structure.


====Optional Inputs====
''Related Question: Can I continue to use my license after the maintenance expires? Answer: Yes''
* '''second''' = optional second input is this.


====Outputs====
Outputs are a vector of integer classes for each sample in x <tt>clas</tt>, the
corresponding normalized basis spectra <tt>basis</tt>, information on the
targets and correlation <tt>info</tt>, and the handle <tt>h</tt> of a figure if
created. The output <tt>info</tt> is a structure containing the following
fields:
* '''corr''' = the correlation of each pixel to each target.
* '''targets''' = the indices of the pixels used as targets.


'''Still having problems? Please contact our helpdesk at [mailto:helpdesk@eigenvector.com helpdesk@eigenvector.com]'''


===Options===
[[Category:FAQ]]
 
options =  a structure array with the following fields:
 
* '''plots''': [ 'none' |{'final'}] governs plotting of results.
* '''algorithm''': [ 'distslct' |{'kmeans'}] algorithm for determining classes distslct is based solely on most unique samples; kmeans adjusts class target to mean of class (iterative).
* '''minarea''': { 1 } minimum area (in %) that a class must account for to be retained as a unique class.
* '''preprocessing''': { [] } preprocessing structure (see PREPROCESS).
* '''pca''': [ {'no'} | 'yes' ] When 'yes', A PCA model is calculated from the data and the scores are used to perform clustering. The output basis is in terms of the original variables.
* '''ncomp''': [ 1 ] Number of PCs (components) to retain from the PCA model. Only used if options.pca is 'yes'.
 
===See Also===
 
[[cluster]], [[distslct]], [[knn]]

Latest revision as of 12:04, 5 December 2018

Issue:

Does the software stop working if my maintenance expires?

Possible Solutions:

Many of our software products come with a "maintenance agreement". The details of this service are given on the Maintenance Agreement Page.

If your maintenance expires, the software does not stop working. Expired maintenance means you no longer have free access to new releases nor access to our help desk support.

For more information, also see the Blog post about the Maintenance Program

Related Question: Can I continue to use my license after the maintenance expires? Answer: Yes


Still having problems? Please contact our helpdesk at helpdesk@eigenvector.com