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Length: 1746 (0x6d2)
Types: TextFile
Names: »oneway«, »ttest«
└─⟦87ddcff64⟧ Bits:30001253 CPHDIST85 Tape, 1985 Autumn Conference Copenhagen
└─⟦this⟧ »cph85dist/stat/doc/cat/oneway«
└─⟦this⟧ »cph85dist/stat/doc/cat/ttest«
ONEWAY/TTEST(1) UNIX User's Manual ONEWAY/TTEST(1)
NAME
oneway/ttest - one way analysis of variance and t-test
SYNOPSIS
oneway [-t] [-s splitter] [group names]
DESCRIPTION
_▶08◀o_▶08◀n_▶08◀e_▶08◀w_▶08◀a_▶08◀y does a one-way analysis of variance on data from dif-
ferent groups. The group sizes can differ, in which case, a
weighted means solution is used.
The input format is simple: each group's data is separated
from other groups' by including a special value, called the
splitter.
OPTIONS
Group names can be supplied on the command line. Otherwise,
names like ``Group 1'' are used.
-s splitter
This value is used to tell when one group's data ends
and another's begins.
-t Request a between group's t-test format for the signi-
ficance test. This option is automatic when the pro-
gram is called _▶08◀t_▶08◀t_▶08◀e_▶08◀s_▶08◀t.
EXAMPLE
Suppose you had two groups of data in two files, called
``long'' and ``short.'' To compare these, you would do some-
thing like:
echo 999 | cat long - short | oneway -s 999 long short
ALGORITHM
The algorithm follows Guilford & Fruchter's _▶08◀F_▶08◀u_▶08◀n_▶08◀d_▶08◀a_▶08◀m_▶08◀e_▶08◀n_▶08◀t_▶08◀a_▶08◀l
_▶08◀S_▶08◀t_▶08◀a_▶08◀t_▶08◀i_▶08◀s_▶08◀t_▶08◀i_▶08◀c_▶08◀s _▶08◀f_▶08◀o_▶08◀r _▶08◀P_▶08◀s_▶08◀y_▶08◀c_▶08◀h_▶08◀o_▶08◀l_▶08◀o_▶08◀g_▶08◀y _▶08◀a_▶08◀n_▶08◀d _▶08◀E_▶08◀d_▶08◀u_▶08◀c_▶08◀a_▶08◀t_▶08◀i_▶08◀o_▶08◀n (_▶08◀5_▶08◀t_▶08◀h _▶08◀E_▶08◀d_▶08◀i_▶08◀t_▶08◀i_▶08◀o_▶08◀n).
SEE ALSO
unixstat(1), pair(1), anova(1)
AUTHOR
Gary Perlman
BUGS
_▶08◀o_▶08◀n_▶08◀e_▶08◀w_▶08◀a_▶08◀y duplicates some functionality of _▶08◀a_▶08◀n_▶08◀o_▶08◀v_▶08◀a (_▶08◀1) but is
included to make this common type of data more easily
analyzed.
KEYWORDS
interential statistics, data analysis
Printed 6/30/85 March 9, 1985 1