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Galculating Subtotals
The
followi.g
Solver equation
calculates
subtotals
of a
STAI list:
srOTL=E(
I
:
srHRT
r
sr0p
:
I
r
ITEl,l(
namer
I
)
)
where
SThRT
and
STOP
define range
of
items
subtotaled-
ITEM(S?hRD
through
ITEM(STOP),
and
name
is the
name
of
the
STAI hst containing the
data.
l.
Press
llsoivel
ffi
and enter the
equation.
2.
Press
lrcfTr
I
to
enter
the STAI application. Enter your
data.
3.
Name
the list, making sure the name matches
name
in
the
equation.
4.
Press
tfsolvtrl
to
return to the
Solver.
Display the menu of vari-
ables
for the
equation
(press
m).
5.
Store values
for
START
and
STOP
by
keying
in
the
values and
pressing
the menu
keys.
6. Press
to
calculate
the
subtotal.
Example:
You
have collected the
followi.g
data. Calculate
the
subtotals
for
observations
'!.-9,
l-4,
and
2-G.
Obseryation 1
2
Ualue
25.1
l2.T
Enter
the
equation
into the
Solvef,
Keys:
Display:
ll
r\to5esl
I'f,r#1ffi#
1
l]N-PUil
lrcrnn
3456
35
.7
27
.2 lg.g
L
0.3
with
name
set
to
DATA.
Then:
Description:
Sets
display to one
deci-
mal
place.
Enters
the
STAI
application.
186
9: Additional
Examples
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