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DESC(1) |STAT January 20, 1987
NAME
desc - describing a single data distribution
SYNOPSIS
desc [-cfhopsv] [-i interval] [-m min] [-M max] [-F|-t Ho]
DESCRIPTION
_d_e_s_c does a number of summary statistics and frequency counts. The
program's input is a series of numbers separated by newlines, tabs or
spaces.
OPTIONS
-c changes -f and -p options to Cumulative.
-f table of midpoints and Frequencies. Data on bin boundaries end
up in the next lower bin, except for data on the lower boundary
of the first bin, which are put in the first bin. Thus, the
first bin is a doubly closed interval, while all the others are
half open: [],(],(],(],(],...(]
-F Ho
requests a F-test of mean = Ho rather than 0 (also -t).
-h prints a Histogram with frequencies.
-i width
sets the Interval width for -h, -f & -p.
-m min
sets the Minimum of the first interval. Numbers below it are
ignored on input.
-M max
sets the Maximum value allowed. Numbers above it are ignored on
input.
-o requests Order statistics (the default with no options).
-p table of midpoints and Proportions.
-s summary Statistics according to SPSS formulas.
-t Ho
same as -F option, which also prints a t-test.
-v output statistics in Variable (name=value) format.
LIMITS
Use the -L option to determine the program limits. _d_e_s_c does its
computations in either one or two passes, depending on whether the
data is stored. If the -i and -m options are used, then it is not
necessary to store the data for frequency tables. Otherwise, or if
order statistics are requested (which require storing and sorting the
data), then the number of input points is limited to some large
number, which can be found with the -L option.
MISSING VALUES
Missing data values (NA) are counted but not included in the analysis.
EXAMPLES
desc -cf -m 0 -i 10 < file
prints a table of Cumulative Frequencies with Minimum = 0 and Interval
width = 10.
desc -s -m 100 -M 1000 < file
prints summary Statistics for inputs between 100 and 1000.
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.