PlotStandardisedQQ
[this page | pdf | references | back links]
Function Description
Returns a standardised Quantile-Quantile (‘QQ’) plot. More
precisely, returns a string which is the (temporary) code for a SmartChart that plots such
information.
A standardised QQ-plot for a series of observations produces
a plot of the observed quantile value versus the expected quantile value, with
the series ‘standardised’ to have zero mean and unit standard deviation using a
formula along the lines of:
where 
is the (sample) standard
deviation of the data series 
.
To allow users to plot several different series together,
this function takes as input two different arrays, one containing all of the
input data for all of the series (i.e. InputData), positioned
consecutively and the other containing the number of entries in each series
(i.e. InputDataSizes). So if InputDataSizes is {3,4} then two series
are being analysed simultaneously, the first with three data points and the
second with four, so InputData should have seven entries, the first
three of which are for the first series and the last four for the second
series.
For further details on how to use the ChartFormat
parameter to format a chart see using the ChartFormat
parameter.
NAVIGATION LINKS
Contents | Prev | Next
Links to:
-
Interactively run function
-
Interactive instructions
-
Example calculation
-
Output type / Parameter details
-
Illustrative spreadsheet
-
Other Charting functions
-
Computation units used
Note: If you use any Nematrian web service either programmatically or interactively then you will be deemed to have agreed to the Nematrian website License Agreement