normals {mixdist} | R Documentation |
Scale mixture of three normal distributions.
The normals
data frame has 25 rows and 2 columns.
data(normals)
This data frame contains the following columns:
the boundaries of grouping intervals.
the frequencies of observation falling into each interval.
A total of 249 observations were generated by computer to follow the mixture distribution 1/3 N(12.5, 1) + 1/3 N(12.5, 3) + 1/3 N(12.5, 5) where N(m, s) denotes a normal distribution with mean m and standard deviation s.
http://www.math.mcmaster.ca/peter/mix/demex/exscle.html
data(normals)
plot.mixdata(normals)