Calculating predicted values
H I N T
The functions PREDX and PREDY estimate (predict) values
for X or Y given a hypothetical value for the other. The
estimation is made based on the equation that has been
calculated to fit the data according to the specified fit.
1. In the Plot view, draw the regression curve for the
to move to the regression curve.
and enter the value of X. The cursor
jumps to the specified point on the curve and the
coordinate display shows X and the predicted value
In the Home view:
for the independent variable given a hypothetical
Enter PREDY(x-value) to find the predicted value of the
dependent variable given a hypothetical independent
You can type PREDX and PREDY into the edit line, or you
can copy these function names from the Commands menu
under the Apps, Statistics 2Var category.
In cases where more than one fit curve is displayed, the
PREDX and PREDY functions use the first active fit defined
in the Symbolic view.
to find the predicted value
Statistics 2Var app