Getting Started

Summary of Features

SAS/INSIGHT software provides a comprehensive set of exploratory and analytical tools.

To explore data, you can

identify observations in plots
brush observations in linked scatter plots, histograms, box plots, line plots, contour plots, and three-dimensional rotating plots
exclude observations from graphs and analyses
search, sort, and edit data
transform variables
color observations based on the value of a variable

To analyze distributions, you can

compute descriptive statistics
create quantile-quantile plots
create mosaic plots of cross-classified data
fit parametric (normal, lognormal, exponential, Weibull) and kernel density estimates for distributions
fit parametric and empirical cumulative distribution functions
test hypotheses of completely specified (known parameters) or specific (unknown parameters) parametric distributions based on Kolmogorov's D statistic

To analyze relationships between a response variable and a set of explanatory variables, you can

fit curves with polynomials, kernels, and smoothing splines
fit curves with nonparametric local polynomial smoothers using either a fixed bandwidth or loess smoothing
add confidence bands for mean and predicted values
fit surfaces with polynomials, kernels, and smoothing splines
create residual and leverage plots
fit the general linear model, including classification effects for analysis of variance and analysis of covariance
fit the generalized linear model, including logistic regression, Poisson regression, and other models

To analyze relationships between variables, you can

calculate correlation matrices and scatter plot matrices with confidence ellipses for relationships among pairs of variables
reduce dimensionality of interval variables with principal component analysis
examine relationships between two sets of interval variables with canonical correlation analysis and maximum redundancy analysis
examine relationships between a nominal variable and a set of interval variables with canonical discriminant analysis

In addition, you can

process data by groups
process multiple data sets
store option settings to customize SAS/INSIGHT operation
store results as SAS data sets, SAS/GRAPH catalogs, and text files
record and submit SAS/INSIGHT statements
obtain context-sensitive help

Finally, because it is a part of the SAS System, you can use SAS/INSIGHT software to explore results from any SAS procedure. Conversely, you can use any SAS procedure to analyze results from SAS/INSIGHT software.

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