Description Usage Arguments Value See Also Examples
groupstats
is a function which estimates the
proportion, mean and standard deviation for a mixture
distribution with one component.
1 | groupstats(mixdat)
|
mixdat |
A data frame containing grouped data, whose first column should be right boundaries of grouping intervals where the first and last intervals are open-ended; whose second column should consist of the frequencies indicating numbers of observations falling into each interval. |
A list containing the following components:
pi |
the value is |
mu |
the estimated mean of |
sigma |
the estimated standard deviation of |
mixgroup
for grouping data, mixparam
for
constructing starting values of parameters.
1 2 |
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