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G-26
•Die folgende Tabelle zeigt die zu verwendenden
Tastenoperationen für das Aufrufen der Ergebnisse im
Falle der quadratischen Regression.
Um diesen Wert aufzurufen:
Führen Sie diese
Tastenoperation aus:
Σx
3
A U r r 1
Σx
2
y A U r r 2
Σx
4
A U r r 3
Regressionskoeffizient C A X r r 3
m1 A X r r r 1
m2 A X r r r 2
n
A X r r r 3
•Die Werte in den obigen Tabellen können innerhalb von
Ausdrücken verwendet werden, gleich wie Sie Variable
verwenden.
uLineare Regression
•Die Regressionsformel für die lineare Regression ist:
y = A + Bx.
Beispiel: Luftdruck und Temperatur
Die lineare Regression
ausführen, um die Terme und
den Korrelationskoeffizienten
der Regressionsformel für die
nebenstehenden Daten zu
bestimmen. Danach die
Regressionsformel
verwenden, um den Luftdruck bei 18°C und die
Temperatur bei 1000 hPa zu schätzen. Zum Schluss
noch das Bestimmtheitsmaß (
r
2
) und die
Stichproben-Kovarianz
berechnen.
In dem REG-Modus:
1
(Lin)
A B 1
(Scl) =
(Stat clear)
10
P1003 S
Mit jedem Drücken der S-Taste zum Registrieren Ihrer Eingabe,
wird die Anzahl der bis zu diesem Zeitpunkt eingegeben
Daten am Display angezeigt (n-Wert).
15 P 1005 S
20 P1010 S 25 P 1011 S
30 P 1014 S
Temperatur Luftdruck
10°C 1003 hPa
15°C 1005 hPa
20°C 1010 hPa
25°C 1011 hPa
30°C 1014 hPa
1.
n=
REG
28


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