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ols(Local) MISC. REFERENCE MANUAL PAGES ols(Local)
NAME
ols - Estimate linear regressions.
SYNOPSIS
ols [-_✓h] [-_✓p] [-_✓r_✓a_✓w] [-_✓l labelstring] [-_✓m model_spec ]
[-_✓e_✓p_✓p] [_✓i_✓n_✓p_✓u_✓t_✓f_✓i_✓l_✓e_✓n_✓a_✓m_✓e]
DESCRIPTION
_✓o_✓l_✓s takes a set of observations from the specified input
file. There must be exactly one observation per line. If no
input file is specified, _✓o_✓l_✓s reads data from Standard Input.
How is this input file organised? All lines must have the
same layout of variables (fields), and the same number of
variables. Given a set of variables in a data file, you can
run any regression which uses some (but not necessarily all)
of these variables as l.h.s. or r.h.s. variable(s).
Defining the layout of the input lines and choosing r.h.s.
and l.h.s. variables "by hand" is slightly tedious. _✓o_✓l_✓s
offers a default behaviour which might be useful. In the
event that you do not choose l.h.s. and r.h.s. variables
yourself, it assumes you want a regression as follows: the
last (rightmost) variable on each line is considered to be
the l.h.s. variable and all other variables are used as
r.h.s. regressors.
The Intercept
_✓o_✓l_✓s knows nothing about the intercept of the regression
line. By default, there is no intercept. If you want an
intercept, you must include a variable in the dataset which
always takes the value 1.0. This is readily done using Unix
tools like _✓a_✓w_✓k(1) or _✓s_✓e_✓d(1).
Notice that omitting the intercept implies _✓f_✓o_✓r_✓c_✓i_✓n_✓g the
regression line to pass through the origin. If this res-
triction is forced unintentionally, it will almost certainly
lead to nonsensical results. Make sure you have a good rea-
son for wanting to impose such a restriction, and be aware
that _✓o_✓l_✓s will implicitly impose this restriction if you do
not include a r.h.s. regressor which always takes the value
1.
OPTIONS
-h This option gives some minimal quickstart help. All
other arguments are ignored if it is found.
-l labelstring
This option allows you to attach variable names to your
variables. Thus, if you have three numbers per line in
a regression of _✓y on _✓x with an intercept, you could use
a labelstring of the form 'constant x y'.
Sun Release 4.1 Last change: 24 May 1991 1
ols(Local) MISC. REFERENCE MANUAL PAGES ols(Local)
The labels do several things. They help in the pretty
printing of the regression results. When the -p switch
is used, the labels enable a more readable generated
ols(Local) MISC. REFERENCE MANUAL PAGES ols(Local)
NAME
ols - Estimate linear regressions.
SYNOPSIS
ols [-_✓h] [-_✓p] [-_✓r_✓a_✓w] [-_✓l labelstring] [-_✓m model_spec ]
[-_✓e_✓p_✓p] [_✓i_✓n_✓p_✓u_✓t_✓f_✓i_✓l_✓e_✓n_✓a_✓m_✓e]
DESCRIPTION
_✓o_✓l_✓s takes a set of observations from the specified input
file. There must be exactly one observation per line. If no
input file is specified, _✓o_✓l_✓s reads data from Standard Input.
How is this input file organised? All lines must have the
same layout of variables (fields), and the same number of
variables. Given a set of variables in a data
ols(Local) MISC. REFERENCE MANUAL PAGES ols(Local)
NAME
ols - Estimate linear regressions.
SYNOPSIS
ols [-_✓h] [-_✓p] [-_✓r_✓a_✓w] [-_✓l labelstring] [-_✓m model_spec ]
[-_✓e_✓p_✓p] [_✓i_✓n_✓p_✓u_✓t_✓f_✓i_✓l_✓e_✓n_✓a_✓m_✓e]
DESCRIPTION
_✓o_✓l_✓s takes a set of observations from the specified input
file. There must be exactly one observation per line. If no
input file is specified, _✓o_✓l_✓s reads data from Standard Input.
How is this input file organised? All lines must have the
same layout of variables (fields), and the same number of
variables. Given a set of variables in a data
ols(Local) MISC. REFERENCE MANUAL PAGES ols(Local)
NAME
ols - Estimate linear regressions.
SYNOPSIS
ols [-_✓h] [-_✓p] [-_✓r_✓a_✓w] [-_✓l labelstring] [-_✓m model_spec ]
[-_✓e_✓p_✓p] [_✓i_✓n_✓p_✓u_✓t_✓f_✓i_✓l_✓e_✓n_✓a_✓m_✓e]
DESCRIPTION
_✓o_✓l_✓s takes a set of observations from the specified input
file. There must be exactly one observation per line. If no
input file is specified, _✓o_✓l_✓s reads data from Standard Input.
How is this input file organised? All lines must have the
same layout of variables (fields), and the same number of
variables. Given a set of variables in a data