Estadisticas Descriptivas

Blanco y Asociados Análisis No Paramètrico de Tablas Cruzadas Aplicaciones Estadísticas Biblioteca I Biblioteca II Cálculo de Análisis de Varianza Cálculo de la T Contacto Correlación y Regresión Decisiones Estadísticas Determinantes sociales de la salud Enlaces y Prontuarios Estadisticas Descriptivas Estadisticas Inferenciales Estadisticas Interactivas Glosario Estadistico Gráficas Ley de Procedimiento Administrativo Libros Estadisticas y Metodologia Métodos de Investigación Números al Azar Organizaciones y Universidades Pro Etica Psicología y Salud Mental REPORT BY THE PRESIDENT’S TASK FORCE ON PUERTO RICO’S STATUS Revistas y Estadísticas de Administración Pública Salud Pública Salud Pública Africana Salud Pública Preventiva Servicios Profesionales Traducción Valores criticos de la F Valores criticos de la T El Tiempo Biblioteca

Calculators, Plotters, Function Integrators, and Interactive Programming Environments

Descriptive Statistics, Histograms, Charts

Statiscope -- a beautifully-implemented page for calculating and displaying a large number of descriptive statistics from a set of numbers you enter
WebStat (an integrated applet) can generate summary statistics, as well as histograms, stem and leaf plots, boxplots, dotplots, parallel coordinate plots, means plots, scatterplots, QQ plots, and time series plots
Descriptive Sampling Statistics -- Enter up to 80 numbers; this page will calculate the mean, variance, SD, CV, skewness and kurtosis.
Descriptive statistics (mean, SD, SEM, and CI of mean). Can enter or paste raw data, or enter mean, SD or SEM, and N to get CI.
Descriptive Statistics -- Enter up to 80 values; page calculates: N, mean, variance, SD, CV, skewness, kurtosis, SEM, median, min, max, range, 1^st & 3^rd quartiles, interquartile range, quartile deviation, coeff of quartile var, and absolute deviation.
Measuring for Accuracy-- Given a set of observed and predicted values, this page calculates the SD of errors, mean absolute & relative error, and Durbin-Watson statistic.
Arithmetic, Geometric, and Harmonic Means -- of up to 80 values.
Rweb - extensive tabular and graphical descriptive summarization: mean, quartiles, histograms, scatterplot matrices (with smoothers), QQ plots (normal and pairwise), time series, box plots. (When you get to the Rweb page, scroll down to the Analysis Menu and select Summary.)
The Data Applet provides descriptive statistics, histograms, boxplots, and scatterplots
A variety of descriptive statistics and a stem and leaf display
Detect Outliers -- this calculator performs Grubbs' test, also called the ESD method (extreme studentized deviate), to determine whether one of the values in the list you enter is a signficant outlier from the rest. Also contains an excellent discussion of what to do about outliers.
Combine Subgroups -- calculate the mean and SD of a combination of groups from the N, mean and SD of each group.
Computes summary statistics for one variable, draws a crude histogram, and sorts a list of values. Given pairs of values, it computes the least squares regression line and Pearson correlation coefficient.
Basic descriptive statistics (mean, sum of squares, variance, standard deviation, minimum, 25^th percentile, median, 75^th percentile, and maximum for up to 500 numbers
Empirical Distribution Function -- from up to 42 sets of [value, frequency].
Multinomial Distributions -- Enter up to 12 values and their corresponding probabilities, and this page will calculate Expected Value, Variance, Standard Deviation, & Coefficient of Variation
Paired Data Sets Statistics -- Enter up to 28 sample paired data sets, and this page will calculate means, variances, and covariance
Histogram -- Enter up to 80 numbers, and this page will display a histogram.
Histogram from a set of numbers, lets you dynamically alter the interval width and see the effect immediately
Histogram -- type in or upload a data set or give a URL; submit; returns a colored histogram that you can copy from the page; also does polygons and cumulative
Determination and Removal of Outliers -- Given a set of numbers, this page iteratively isolates potential outliers for removal.
Point Pattern Analysis -- used to describe and help analyze point patterns. It consists of 14 different analysis routines for a variety of basic descriptive statistics: nearest neighbor analysis, K-function, space-time Knox, Join-Count statistics, Global Moran%u2019s I and Geary%u2019s c, general Getis-Ord%u2019s G, local K-function, and more.
Draw a scattergram from {x,y} data
Draw a 3-dimensional scattergram from {x,y,z} data
Generate a VRML file to view 3-dimensional (x,y,z) data. To view the resulting files requires a VRML viewer.
Compute and plot a Kernel Density Estimate from a set of points, using Epanechnikov, triangular, biweight or Gaussian kernels
Compute Poisson change-point, that is: estimate when, in a long sequence of occurrences, the occurrence rate underwent a sudden change
Boxplot -- type in or upload a data set, or give a URL; submit; returns a colored boxplot that you can copy from the page
Parallel Boxplot -- type in or upload a bivariate data set with a continuous variable and a group indicator; submit; returns a colored parallel boxplots that you can copy from the page
Q-Q Plot -- type in or upload a data set, or give a URL; submit; returns a colored q-q plot that you can copy from the page
Plot up to 10 x,y data points