HP F2226A - 48GII Graphic Calculator User Manual page 591

@CANCL
•
Determine the fitting equation and some of its statistics:
@) S TAT @) F IT@ @£LINE
@@@LR@@@
3 @PREDX
1 @PREDY
@CORR
@@COV@@
L@PCOV
• Obtain summary statistics for data in columns 1 and 2: @) S TAT @) S UMS:
@@@£X@@
@@@£Y@@
@@£X2@
@@£Y2@
@@£XY@
@@@N£@@
•
Fit data using columns 1 (x) and 3 (y) using a logarithmic fitting:
L @) S TAT @) £ PAR 3 @YCOL
@) M ODL @LOGFI
returns to main display
'1.5+2*X'
produces
produces Intercept: 1.5, Slope: 2
produces 0.75
produces 3. 50
produces 1.0
produces 23.04
produces 19.74...
produces 38.5
produces 87.5
produces 280.87
produces 1370.23
produces 619.49
produces 7
select Ycol = 3, and
select Model = Logfit
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