Pasco SPARK Science Learning System User's Guide Instrukcja Użytkownika Strona 44

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36 DATA ANALYSIS
ANALYZING DATA IN A GRAPH
6. Optionally, select part of the data set for statistics to be applied to.
See “Selecting part of a data run for operation in a graph” on page 24.
To remove the statistics, touch the Statistics button again.
Applying a curve fit
Complete these steps to apply a linear, quadratic, power, inverse, inverse square,
or sine fit to a data run:
1. If more than one data run is displayed, first select a run:
a. Touch the graph legend.
The legend enlarges.
b. In the legend, touch the symbol of the run that you want to select.
The red outline moves to the selected run.
2. Touch the Graph Tools button to open the tool palette.
3. Touch the Curve Fit button to open the Curve Fit screen.
4. Touch one curve fit to select it.
5. Touch OK.
The curve and parameters of the curve appear on the graph.
6. Optionally, select part of the data set for the curve fit to be applied to.
See “Selecting part of a data run for operation in a graph” on page 24.
Removing a curve fit
1. Touch the Graph Tools button to open the tool palette.
2. Touch the Curve Fit button.
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