ProbDistPlotQQ
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Function Description
Returns a quantile-quantile plot (versus the normal
distribution) of the quantile function of the probability distribution given by
DistributionName and with parameter values given in ParamValues (with
their order matching the parameter names listed by MnProbDistParamNames).
More precisely, returns a string which is the (temporary) code for a SmartChart that plots such
information.
To make it easier to see how close to a normal distribution
the given distribution appears we also show a ‘standardised’ expected QQ-plot
for an equivalent normal distribution. As not all distributions have a standard
deviation we standardise the expected QQ-plot so that it goes through the lower
quartile and upper quartile of the selected distribution.
Probability distributions currently recognised by the
website may be listed using MnRecognisedProbDists.
For further details on how to use the ChartFormat
parameter to format a chart see using the ChartFormat
parameter.
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Output type / Parameter details
Output type: String
Parameter Name | Variable Type | Description |
DistributionName | String | Name of distribution |
ParamValues | Double() | Array containing parameter values for distribution |
xMinimum | Double | Minimum value of x included in plot |
xMaximum | Double | Maximum value of x included in plot |
n | Integer | Number of points plotted to create plot |
ChartTitle | String | Title for chart |
ChartFormat | String | Text defining format of chart |
Links to:
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Interactively run function
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Interactive instructions
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Example calculation
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Output type / Parameter details
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Illustrative spreadsheet
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Other Probability distribution analysis functions
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Computation units used
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