In the Plot view, press ),7_. This draws a curve to fit the checked
>3/27@
0(18_
),7_
>6<0%@
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| The expression in Fit2 |
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| shows that the |
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| slope=1.98082191781 and |
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Correlation | the |
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The correlation coefficient is stored in the CORR variable. It is | |||
coefficient | a measure of fit to a linear curve only. Regardless of the Fit | ||
| model you have chosen, CORR relates to the linear model. | ||
Relative Error | The relative error is stored in a variable named RELERR. The | ||
| relative error provides a measure of fit accuracy for all fits, | ||
| and it does depend on the Fit model you have chosen. | ||
| The relative error is a measure of the error between predicted | ||
| values and actual values based on the specified Fit. A smaller | ||
| number means a better fit. | ||
H I N T |
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In order to access these variables after you plot a set of | |||
| statistics, you must press >180@ to access the numeric view | ||
| and then 67$76_ to display the correlation values. The values | ||
| are stored in the variables when you access the Symbolic | ||
| view. | ||
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Statistics aplet |