The Partial Areas panel includes settings for the computation of partial areas under the curve. Partial area computations are optional. It is not necessary to enter or add any start times or end times in this panel. For descriptions of how the NCA object computes partial areas, see the “Partial area calculation” section.
None: Columns mapped to this context are not included in any analysis or output.
Sort: Categorical variable(s) identifying individual data profiles.
Area #: Number to identify the defined partial area.
Label: Title to use as a label for the defined partial area.
Start Time: The time at which to begin the partial area calculation.
End Time: The time at which to end the partial area calculation.
Some additional notes on partial areas:
Partial area computations are optional. To skip the computations leave the Start Time and End Time columns empty.
Up to 127 partial areas can be computed per subject.
The start times and end times can be after the last observed time if Lambda Z is estimable.
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