http://manuals.pqstat.pl/ 2026-05-12T01:52:55+00:00 http://manuals.pqstat.pl/ http://manuals.pqstat.pl/lib/tpl/dokuwiki/images/favicon.ico text/html 2022-02-16T13:21:00+00:00 Anonymous (anonymous@undisclosed.example.com) http://manuals.pqstat.pl/en:przestrzenpl:autocorpl Spatial autocorrelation To conduct spatial autocorrelation on the basis of a Map data we should have at our disposal a point, multipoint, or polygonal file. In the case of an analysis of a polygonal file based on the calculation of objects distances, calculations are based on centroids of polygons, and in the case of a multipoint file they are based on centers of objects. text/html 2022-02-16T13:03:45+00:00 Anonymous (anonymous@undisclosed.example.com) http://manuals.pqstat.pl/en:przestrzenpl:gestoscpl Density analysis To conduct density analysis on the basis of a Map data we should have at our disposal a point, multipoint, or polygonal file. In the case of an analysis of a polygonal file, calculations are based on centroids of polygons, and in the case of a multipoint file they are based on centers of objects. text/html 2022-02-16T13:44:02+00:00 Anonymous (anonymous@undisclosed.example.com) http://manuals.pqstat.pl/en:przestrzenpl:lokalpl Local estimate of spatial clustering In the local analysis we try to define clusters according to their placement, size, and intensity. A cluster is understood as a limited gathering of objects of certain intensity, placed in space and/or time, an accidental appearance of which is highly improbable. If we identify such a gathering which is not accidental but is a statistically significant cluster we can infer the reasons for its occurrence. text/html 2022-02-16T13:08:12+00:00 Anonymous (anonymous@undisclosed.example.com) http://manuals.pqstat.pl/en:przestrzenpl:losdotpl Randomness of point distribution To conduct analysis of the randomness of point distribution on the basis of a Map data we should have at our disposal a point, multipoint, or polygonal file. In the case of an analysis of a polygonal file, calculations are based on centroids of polygons, and in the case of a multipoint file they are based on centers of objects. text/html 2022-02-16T11:41:01+00:00 Anonymous (anonymous@undisclosed.example.com) http://manuals.pqstat.pl/en:przestrzenpl:menmappl Map manager The Map Manager is a tool for managing a map and the layers ascribed to the map. It is possible to view both maps imported to the PQStat program and maps opened directly from an SHP file. The Map Manager is activated through the: - menu text/html 2022-02-16T12:20:03+00:00 Anonymous (anonymous@undisclosed.example.com) http://manuals.pqstat.pl/en:przestrzenpl:mwagpl Spatial weights matrix Spatial relations among objects presented on a map can be organized in the form of a matrix. The matrices are called weights matrices. Due to their large size and a great amount of detailed information, weights matrices are not carriers of knowledge which could be presented directly in the results of a conducted study but they form the basis of further analysis. The data included in the matrices are usually treated as weights in spatial analyses and, in this manner, allow… text/html 2022-02-16T12:41:03+00:00 Anonymous (anonymous@undisclosed.example.com) http://manuals.pqstat.pl/en:przestrzenpl:opisowepl Descriptive statistics Descriptive statistics of points To conduct Descriptive Statistics on the basis of a Map data we should have at our disposal a point, multipoint, or polygonal file. In the case of an analysis of a polygonal file, calculations are based on centroids of polygons, and in the case of a multipoint file they are based on centers of objects. text/html 2022-02-16T17:13:55+00:00 Anonymous (anonymous@undisclosed.example.com) http://manuals.pqstat.pl/en:przestrzenpl:wglpl Spatial smoothing The idea of spatial smoothing is obtaining a better (more stable and less noisy) value of the variable. The most common methods of building such a variable are based on borrowing the information from neighboring areas or on using a larger amount of information from the studied region (L.A. Waller 2004 text/html 2022-02-16T11:21:14+00:00 Anonymous (anonymous@undisclosed.example.com) http://manuals.pqstat.pl/en:przestrzenpl:wsteppl Spatial analysis - an introduction Basic definitions Geographic Information System - GIS -- is a system for entering, storing, processing, and visualization of geographic data. From the technical point of view GIS is a tool which allows the analysis of interrelated: