Drawing A Sinusoidal Regression Graph ( Sin( B·x ) - Casio ClassPad 300 User Manual

Drawing a Sinusoidal Regression Graph (
Sinusoidal regression is best for data that repeats at a regular fixed interval over time.
u ClassPad Operation
Start the graphing operation from the Statistics application's Graph window or List window.
From the Graph window
Tap [Calc] [Sinusoidal Reg] [OK] [OK] ".
From the List window
Tap [SetGraph][Setting...], or G.
On the Set StatGraphs dialog box that appears, configure a StatGraph setup with the
setting shown below, and then tap [Set].
Type: SinR
Tap y to draw the graph.
The following is the sinusoidal regression model formula.
y a b x
= ·sin( ·
• MSe =
n – 2
Tip
• Make sure that "Radian" is selected for the [Angle] setting on the Basic Format dialog box (page
13-3-2) before drawing a sinusoidal regression graph. The graph cannot be drawn correctly when
the [Angle] setting is "Degree".
• Certain types of data may cause calculation to take a long time. This is normal and does not
indicate malfunction.
Graphing Paired-Variable Statistical Data
c d
+ ) +
n
1
Σ
(y – (a·sin (b·x
i
i=1
7-5-13
y a b
= ·sin(
2
+ c) + d ))
i
20021201
x c d
· + ) + )