Texas Instruments TI-86 Manual Book page 351

PwrR
STAT CALC menu
Built-in equation variables
such as y1, r1, and xt1 are
case-sensitive. Do not use
Y1, R1, and XT1.
PwrR xList , yList , frequencyList
Fits a power regression model (y=ax
data pairs in xList and yList, using frequencies in
frequencyList. The regression equation is stored to
equationVariable, which must be a built-in equation
variable such as y1 , r1
Values used for xList, yList, and frequencyList are
stored automatically to built-in variables
and fStat , respectively. The regression equation is
stored also to built-in equation variable
PwrR xList , yList , equationVariable
Uses frequencies of 1.
PwrR xList , yList , frequencyList
Stores the regression equation to
PwrR xList , yList
Uses frequencies of 1, and stores the regression
equation to RegEq only.
PwrR equationVariable
Uses xStat , yStat , and
frequencyList, respectively. These built-in variables
must contain valid data of the same dimension;
otherwise, an error occurs. The regression equation is
stored to equationVariable and
Chapter 20: A to Z Function and Instruction Reference
, equationVariable
b
) to positive real
, and xt1 .
xStat , yStat
RegEq .
RegEq only.
fStat for xList, yList, and
RegEq .
In graphing mode:
Func
{1,2,3,4,5,6}¶L1 b
{1,17,21,52,75,133}¶L2 b
{1 17 21 52 75 133}
PwrR L1,L2,y1 b
,
Plot1(1,L1,L2) b
ZData b
339
{1 2 3 4 5 6}
Done