This fits a continuous or discrete distribution to an observed data sample, in
order to estimate the parameters of the distribution and test the goodness of
fit.
Data Values
Specifies a variate containing the data.
Groups
For data values within a variate, this allows you to specify a grouping factor.
The distribution will be fitted to each group individually and combined for all
groups.
Distribution
Specifies which distribution is to be fitted. Select Discrete to display a list
of the available discrete distributions or Continuous to list the continuous
distributions. The Guide to GenStat® Part 2: Statistics
describes the distributions in detail and discusses the parameterization used
in each case.
Number of Classifying Groups
You can specify the number of groups into which the data is classified when
summarizing the fitted distribution. If Limits are given, this should be equal
to one more than the number of limits. If you do not set the number of groups it
is worked out from the Limits setting, or defaults to the square root of the
number of observations.
Limits
You can supply limits for classifying the data when summarizing the fit of
the distribution. Limits can be set to the identifier of a variate that contains
the required values, or to a list of values separated by spaces or commas.
Available Data
This lists variates that can be specified in the Data Values and Limits fields.
Double-click on a name to copy it to the current input field; alternatively,
you can type the name directly into the input field.
See Also