^{ICustomBoxSeries.Quartile1
ICustomBoxSeries}

<sup>property Quartile1: Double;

Type Library
TeeChartx

Description
Read from Quartile1 to get SampleValues first quartile. Approximately 25% of the data will fall on or</sup>

^{below Quartile1. Write to Quartile1 to override ICustomBoxSeries default calculating algorithm and use supplied value to construct box plot.}

^{NOTE: Writing to Quartile1 does not ensure custom value will be used to construct a box plot. An additional requirement is the UseCustomValues property is True.}