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Table 4-4
describes
the
FRCST
menu. The next sections describe two-
list
calculations
in
more
detail.
Table 4-4. The
FRCST Menu
Menu Key
Description
x-variable
y-variable
'ljlt;lBffi..sli+'
ii!il,\jlih!.,!i*i*::.ijr.r.i:i+
i:l,1i1i;.ii.dr.r,l+tq.;Ig[!1:i$.4{1]-f-..rb'?i-
,+.i:lf.-3i;!Yr'1::b-1,Y,itrlA.+fl.
!{iiiii+tlir+E&!rJ.n:n:-tji
i *
ii$.1.81'le,\1ffitari!Hr,trniiff.i.11$
u
#ig1$il**r,ffiffiH+l
tEl:i.:$!.rft:ffi
!]!iiiiiiiililE::#r:niilits.*ii$;1.:.;++
ire+1il*l$*iffi*Ffs$
+:+i
*+ffi,.+5-S
iii!:iltltl$i|i$elEE{tli{+:
.r.;.:.*1iltL1,i$.'$l.i,:-1\T.,1$$-:$
,i..,J,$-tii,i\iffi .rsi*;iiii+i.iii#
:NYii{ii.i.+}ilil5l4g4ldl*1#rP-<?B$i
I;::]llilitii+llr$$d?,illiI:iI:++i!:{ii
iriii'tf.:$.*
&-S..,*,1'.f;"f.:$
nii.tsl-rliiiryjiF;tll),i+-i.:1i.,Xi1
r:t!!i!jtsr:nlffi
ii{#F-B\-t*.'.}iift#i.tB..+
iif*r,ilTH&iffi
tsai;fl"$!i
{sfrF,1ffiff'ffir#ffi
i,fr$itiiiffi }jjlltu\.fff
1$
iat{r,iti'i.$iilll$FiGrlSH?31#iii
iiiri;iH.\,+jEt.rHs-{*.;:.+.i.:1ifr
Used
for
estimation
calculations.
Store
x
and
calculate
y
or
vice
versa.*
Displays
the
correlation coefficient. The correlation coefficient
is
a
number in
the range
-
1
through +
1
that
measures how
closely
the
data
fits
the calculated curve.
A
value
of
+
1
indi-
cates
a
perfect positive correlation,
-
1
indicates
a
perfect
negative correlation.
A
value close
to
0
indicates
the
curve
is
a
poor
fit.
Displays
M.
For
the
linear
model,
this is the
slope.
Displays
B.
For
the
linear
model,
this is
the
y-intercept.
I
liffi
j
irj?$.rr!{.q$#,Nsi's.s.nxrrsf
Displays
a
choice
of the four
curve
fitting
models.
Calculates the weighted
mean
of
the x-values using the
y-val-
ues as weights (or
frequencies).
Calculates
the
standard deviation
of
a set
of
numbers
(x-val-
ues)
occurring
with the
specified integer
frequencies
(y'
values).
Displays
the
number
of
items in each
list.
I
l'$*ffi
t
*irsi$\.R}ircl$8:i'.
.. ..
.
Calculates
the
sum (total)
of
the
x-values.
Calculates
the
sum (total)
of
the
y-values.
Calculates
the
sum
of the
squares
of
the
x-values.
Calculates
the
sum
of the
squares
of
the
y-values.
Calculates
the
sum
of the
pr.oducts
of
the
x-
and
y-values.
.
Calculated using
the transformed
equations
for
the
exponential, logarithmic,
and
power
models (see
table 4-5
on
page
82).
80
4=
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