Microcomputer graphics for statistical education

Statistical Graphics

Statistical Graphics for Survey Weights

Ponderación de la muestra se utilizan para corregir las diferencias conocidas entre la muestra y la población debido al diseño de la muestra, la falta de respuesta, la falta de cobertura, y otros factores. Sin embargo, consideraciones prácticas a menudo resultan en pesos que no se han construido de una manera sistemática. Los métodos gráficos pueden ser útiles en la comprensión de ponderaciones...

C4.1 Interactive Statistical Graphics

Examining data using graphical tools, such as histograms, bar charts, quantile plots, scatterplots and other statistical graphics, is a necessary part of any serious analysis effort. Statistical graphics are typically most useful at two stages of an analysis. Initially, plots are useful for data cleansing [cross-ref. C2.1] where unusual sets of values can be investigated, attribute distribution...

Statistical Graphics and Visualization

Statistical Based Vectorization for Standard Vector Graphics

In this paper a novel algorithm for raster to vector conversion is presented. The technique is mainly devoted to vectorize digital picture maintaining an high degree of photorealistic appearance specifically addressed to the human visual system. The algorithm makes use of an advanced segmentation strategy based on statistical region analysis together with a few ad-hoc heuristics devoted to trac...