Predicting Values - HP NW280-200X User Manual

Plotting mark
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Predicting values

In Plot view
In Home
view
212
Page 1 of the Plot Setup view has fields namedS1MARK
through S5MARK. These fields enable you to specify one
of five symbols to use to represent the data points in each
data set. This will help you distinguish data sets in Plot
view if you have chosen to plot more than one.
Page 2 of the Plot Setup view has a
choose this option, straight lines join the data points in Plot
view.
PredX is a function that predicts a value for X given a
value for Y. Likewise, PredY is a function that predicts a
value for Y given a value for X. In both cases, the
prediction is based on the equation that best fits the data
according to the specified fit type.
You can predict values in the Plot view of the Statistics
2Var app and also in Home view.
1. In the Plot view, tap
curve for the data set (if it is not already displayed).
2. Make sure the trace cursor is on the regression curve.
(Press or
= \
3. Press > or <
regression curve and the corresponding X and Y
values are displayed across the bottom of the screen.
(If these values are not visible, tap
You can force the cursor to a specific X value by tapping
, entering the value and tapping
jumps to the specified point on the curve.
If the Statistics 2Var app is the active app, you can also
predict X and Y values in the Home view.
Enter PredX(Y)
•
specified Y value.
Enter PredY(X)
•
specified X value.
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to display the regression
if it is not.)
. The cursor moves along the
to predict the X value for the
E
to predict the Y value for the
E
field. If you
.)
. The cursor
Statistics 2Var app