Understanding three-dimensional projections created by dimensionality reduction from high-variate datasets is very challenging. In particular, classical three-dimensional scatterplots used to display such projections do not explicitly show the relations between the projected points, the viewpoint used to visualize the projection, and the original data variables. To explore and explain such rela...

A graphical display of PLS regression of a data set is presented. Biplots in regression analysis has many advantages, including demonstrating the association between samples and variables graphically. The PLS biplot provides a single graphical representation of the samples alongside the predictor and response variables, as well as their interrelationships.

Science has become progressively more complex, requiring greater integration and collaboration between individuals, institutions and areas. Networking research establishes common rules and offers a suitable framework for this cooperation. Therefore, it is a good choice for both scientists and policy-makers. The objective of this study is to know whether the scientists perform better within thes...

BACKGROUND Falling is a common but devastating and costly problem of aging. There is no consensus in the literature on whether the spatial and temporal gait parameters could identify elderly people at risk of recurrent falls. OBJECTIVE To determine whether spatiotemporal gait parameters could predict recurrent falls in elderly women. METHOD One hundred and forty-eight elderly women (65-85 y...

Five-year data of SO2, PM10, NO, NO2, O3 and CO levels recorded at two air pollution monitoring stations in the city of Salamanca were analysed using a HJ-Biplot Simultaneous Representation analysis method in order to determine the possible relationships among the different pollutants and to gain insight into the temporal evolution of pollution in this city. Use of this statistical method prove...

Background Gait is an extremely complex motor task; therefore, gait data should encompass as many gait parameters as possible. Objective To provide reference values for gait measurements obtained from a Brazilian group of community-dwelling elderly females between the ages of 65 and 89 years and to apply the PCA-biplot to yield insight into different walking strategies that might occur during t...

Se presentan algunos aspectos teóricos sobre la relación entre las técnicas clásicas de MANOVA y Biplot, que son base gráfica MANOVA-Biplot. aplica esta técnica a un conjunto datos referentes al uso del suelo en tres regiones definidas por el Ecuador. indagan sus diferencias con propósito lograr una caracterización sintética sirva para compararlas estadísticamente sea utilidad proceso toma deci...