https://www.na-mic.org/w/index.php?action=history&feed=atom&title=NAMIC_Wiki%3AShapeAnalysis%3AOutputFeature_format 2026-05-04T02:27:27Z Revision history for this page on the wiki MediaWiki 1.33.0 https://www.na-mic.org/w/index.php?title=NAMIC_Wiki:ShapeAnalysis:OutputFeature_format&diff=3429&oldid=prev 2006-12-18T13:22:24Z

<p>Update from Wiki</p> <p><b>New page</b></p><div>== Shape Analysis Output of Statististical Tests ==<br /> <br /> This page serves as a main starting point for discussion regarding describing the result from statistical tests on shape data.<br /> <br /> === General ===<br /> <br /> * 2 main statistical tests: Global tests and local tests<br /> * Results of these tests can be cumulative for the whole study (such as p-values) or population (such as an average object) or per object (such as a classification)<br /> ** There is a great deal of flexibility for each filter, but the filter needs to store its results in the studyObject datastructure in a consistent way<br /> <br /> === Global Tests/Data ===<br /> <br /> Global tests return single scalar values, such as p-value for the significance, or additional values for the power or effect size of the test. Results can be the following type :<br /> <br /> * Significance, power, effect size, statistical metrics (such as t, z, T^2 etc) per population<br /> * Classification of the data, either probabilistic or hard, per object<br /> * Intermediate statistical data from the tests, such as classification planes, linear multivariate models etc. Their definition is fully left to the developer of a statistical test.<br /> <br /> === Local Tests ===<br /> <br /> Local tests return a map/vector/array of values, each representing a single location of region. For each location or region there are the same possible results as in the global tests.<br /> <br /> * Surface data results: Stored and visualized as AttributedMeshSpatialObject ([[NAMIC_Wiki:ShapeAnalysis:InputPop_format#Contents_on_the_object_level|Object level description]]). Default pluggable colormaps for p-values, z-scores, t, T^2 scores etc.<br /> <br /> === IO contents ===<br /> <br /> * ID / name of test<br /> * Global results are stored directly in datastructure(?)<br /> * Local results are stored in separate files that are referenced in datastrusture<br /> ** e.g. Image data as 3D float data in any ITK readable format<br /> ** e.g. Surface data as SurfaceSpatialObject based class (MetaIO format)</div>

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