STAT
~+
TOT
COU
UTPC
HP-28S
statistics
~
MEAN
CORR
UTPF
commands
n x m matrix called
matrix is
The
not
the
numbers),
data
statistics matrix .
data
Data
defined
current
already
statistics matrix
exist,
command
and
point
entered
points
that
Point
1
2 X
to
when
~
+. A
is
stored
The n dimension
have
N~
SDEV
COY
UTPN
deal
the
current statistics matrix.
be
a matrix
~DAT
you
begin
data
point
as
one
sets
the m dimension
been
entered
Coordinate
1 2 .
X
11
21
CU
VAR
LR
UTPT
with
statistical
stored
in
the
is created automatically, if it
entry
of
statistical
is a vector
row
in
of
the
statistics matrix.
(number
(number
X
12
X
22
as
illustrated
of rows) is
Number
STO~
MAX~
PRDEV
COMB
data
The
variable
m
coordinate
of
below:.
..
.. .
...
RCU
MIN~
PERM
collected in
current
data
statistics
~DAT.
points
values (real
The
columns)
the
number
m
X
X2m
1m
does
with
of
an
first
the
of
n
Certain
of
numbers,
the
list
tion
statistics
the
statistics matrix. User variable
the
columns
are
the
slope
of
the
linear
X
commands
first two
with
the
and
regression
n1
intercept
combine
of
which
command
command
X
n2
data
~PAR
identify
COL~.
computed
.. .
from two specified
contains a list
the
two
columns. You
The
from
last two
the
numbers
most
LR.
Dictionary
Xnm
columns
of
four
real
select
in
the
recent execu-
245
un
STAT
Because
ndry
the
The
(covariance)
ple
If
the
lation
1.
2.
3.
4.
These
data
~DAT
commands
specific statistics
commands
calculate
of
the
population. These
data
represent
statistics as follows.
Execute
data.
Execute
Execute SDEV,
population.
Execute ~-
data.
~+
commands
to
or
delete
and
~PAR
are
ordinary
to recall, view,
commands
SDEV (standard deviation),
sample
the
entire
MEAN
~+
~-
to
to
add
VAR,
DROP
allow
data
from
return a data
you to select a statistics matrix,
or
alter their contents, in
that
statistics using
commands
population,
the
mean
or
COY.
to
remove
the
matrix.
variables, you
deal
with
VAR
data
that
are described in detail below.
you
can
point
representing
data
point
to
The
result is
the
mean
data
CL~
can
addition
the
variables.
(variance),
represent a sam-
calculate
the
the
data.
the
statistics for
point
STO~
and
use
ordi-
and
the
popu-
mean
from
RCL~
to
to
COY
the
the
add
~+
~
+
adds
~DAT.
246
[X1
[[x11
one
or
Dictionary
Level 1
x
X2
•..
X12
more
Sigma Plus
xm]
...
x1m]
data
I
..
..
..
points to
the
current
Command
statistics matrix
...
STAT
For a statistics matrix
~+
in several ways:
Entering one
gument
Entering one
argument
Entering several
n
rows
of
In
each
case,
rent
statistics matrix
creates it as
does
exist,
number
doesn't
~-
data
for
~
+ is a real
data
for
~
+ is a vector
m real
the
an
n x m matrix
an
error occurs if it
of
coordinate
match
the
data
coordinate
coordinate
number
with
m columns, you
point with a single coordinate value.
number
point with multiple coordinate values.
points.
of
.
m real
The
can
coordinate
argument
enter
for
values.
~
the
argument
+ is a matrix
values.
stored
values
values are
in
~DAT.
stored
does
in
of
columns
Sigma Minus
not
each
..
added
If
~DAT
in
the
contain
data
in
as
new
does
variable
a real matrix,
point
entered
~DAT.
Level 1
x
rows
to
not
exist,
~DAT.
If
with
Command
The
The
the
cur-
~+
~DAT
or
if
~+
for
ar-
of
the
~
-
returns
corresponding
by
~+
into
matrix is
The
to
the
deleted
vector
returned
statistics matrix
a vector
to
the
of
the
coordinate
statistics matrix
.
by ~ -
m real
by
~
numbers,
values
~DAT.
can
be
+ .
in
The
edited
or
one
number
the
last
data
last
row
or replaced,
Dictionary
of
if m =
point
the
then
1,
entered
statistics
restored
247