3.Press the function key that corresponds to the type of regression calculation*1 you want to perform.

To perform quadratic regression, for example, press

3(X2). This performs the regression calculation and displays the results.*2

You can press 5(COPY) here to copy the obtained regression formula to the graph relation list screen. See “Inputting an Expression of the Form Y=f(x) and Graphing It” (page 15-10) for more information.

4.To draw a regression graph, press 6(DRAW).

*1 For information about regression calculation types, see “Selecting the Regression Type” (page 6-15).

*2 For information about the meanings of the values that appear on this screen, see “Displaying Regression Calculation Results” (page 6-16) and the regression graph explanations on pages 6-16 through 6-20.

Note

Besides regression graphs, you also can specify your own expressions and graph them. See “Inputting an Expression of the Form Y=f(x) and Graphing It” (page 15-10).

uScrolling and Panning a Plot or Graph Screen

On the Picture Plot screen, you can use the cursor keys to scroll the XY-coordinate axes up, down, left, and right. Note that the background image is fixed and does not scroll.

You also can press K6(g)6(g)2(PAN) and pan (grab-and-drag) the XY-coordinate axes. The pan operation is the same as that in the Graph mode (page 5-10).

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