Box Plot of Assay Data
Use the Geochem Analysis > GeochemUtilities > Box Plot option (CHBOXPLOT GX) to create a box plot of the selected assay data.
Box Plot of Assay Data dialog options
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Assay channel
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Select an assay channel from the drop-down list. Assay channels have their "class" attribute set to "ASSAY".
Script Parameter: CHBOXPLOT.CHAN
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Categorization channel
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Select a channel from the list of available string-type channels. All data values corresponding to each unique item in this channel are plotted to a single box.
Script Parameter: CHBOXPLOT.CATCHAN
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Plot mean as ‘+’
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If "yes", plot the value of the mean as a small red cross.
Script Parameter: CHBOXPLOT.PLOTMEAN
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Single box width (mm)
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The width of an individual box plot in mm. The full plot width is determined by this parameter, and the number of separate categories/classes.
Script Parameter: CHBOXPLOT.WIDTH
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Plot height (mm)
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The height of the plot box in mm. With the title text and category labels at the bottom, the entire plot will be taller than this.
Script Parameter: CHBOXPLOT.HEIGHT
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Axis scaling
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Select "Linear", "Logarithmic" or "Default". The "Default" setting
makes use of the assay attributes "Logarithmic distribution" setting.
Script Parameter: CHBOXPLOT.SCALING (-1:Default, 0:Linear, 1:
Logarithmic; default = 0: Linear)
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Plot uncategorized data?
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If there is no categorization value for some of the data, it is
collected into a single category and plotted as "(none)". If you do not wish to
view this data, select "No".
Script Parameter: CHBOXPLOT.PLOT_UNCATEGORIZED (0: No (default),
1: Yes)
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Application Notes
A box plot divides the data up based on the input categorization channel, then
plots a box-like figure which shows the data minimum and maximum, as well as the
25%, 50% (median) and 75% break points in the data.
