Application Guide

ExpReg
Catalog >
All the lists must have equal dimension
except for Include.
X and Y are lists of independent and
dependent variables.
Freq is an optional list of frequency values.
Each element in Freq specifies the
frequency of occurrence for each
corresponding X and Y data point. The
default value is 1. All elements must be
integers ≥ 0.
Category is a list of category codes for the
corresponding X and Y data.
Include is a list of one or more of the
category codes. Only those data items
whose category code is included in this list
are included in the calculation.
For information on the effect of empty
elements in a list, see “Empty (Void)
Elements,” page 236.
Output
variable
Description
stat.RegEqn
Regression equation: a•(b)
x
stat.a, stat.b Regression coefficients
stat.r
2
Coefficient of linear determination for transformed data
stat.r Correlation coefficient for transformed data (x, ln(y))
stat.Resid Residuals associated with the exponential model
stat.ResidTrans Residuals associated withlinear fit of transformeddata
stat.XReg
List of data points inthe modified X List actually usedin the regression based on
restrictions of Freq, Category List, and Include Categories
stat.YReg
List of data points inthe modified Y List actually used in the regression based on
restrictions of Freq, Category List, and Include Categories
stat.FreqReg
List of frequencies corresponding to stat.XReg andstat.YReg
Alphabetical Listing 67