Plotkd: Difference between revisions
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===Purpose=== | ===Purpose=== | ||
Kernel density plot. | Kernel density plot. | ||
===Synopsis=== | ===Synopsis=== | ||
:plotkd(x,distname,kernel,userw,translate) | :plotkd(x,distname,kernel,userw,translate) | ||
===Description=== | ===Description=== | ||
Provides a kernel density plot of the input x and an overlay. | Provides a kernel density plot of the input x and an overlay. | ||
==== | |||
====Inputs==== | |||
* '''x''' = matrix (column vector) in which the sample data is stored. | * '''x''' = matrix (column vector) in which the sample data is stored. | ||
* '''distname''' = string, optional distribution name to assume as the parent distribution for the sample. Default value is 'normal'. | * '''distname''' = string, optional distribution name to assume as the parent distribution for the sample. Default value is 'normal'. | ||
* '''kernel''' = Integer between 1 and 7 indicating which kernel to use. | * '''kernel''' = Integer between 1 and 7 indicating which kernel to use. | ||
:: '''1''' - Bivwight | |||
:: '''2''' - Cosine | |||
:: '''3''' - Epanechnikov {default} | |||
:: '''4''' - Gaussian | |||
:: '''5''' - Parzen | |||
:: '''6''' - Triangle | |||
* '''userw''' = scalar, the optional window width to use in the kernel calculation. If not specified, then the optimal window width is used according to the calculation: | |||
* '''userw''' = scalar, the optional window width to use in the kernel calculation. If not specified, then the optimal window width is used according to the calculation: <tt>translate = scalar, axis translation.</tt> | |||
===Examples=== | ===Examples=== | ||
plotkd(x) | |||
plotkd(x,'normal') | plotkd(x) | ||
plotkd(x,'normal') | |||
===See Also=== | ===See Also=== | ||
[[plotcqq]], [[plotedf]], [[plotqq]], [[plotsym]] | [[plotcqq]], [[plotedf]], [[plotqq]], [[plotsym]] | ||
Latest revision as of 12:31, 9 October 2008
Purpose
Kernel density plot.
Synopsis
- plotkd(x,distname,kernel,userw,translate)
Description
Provides a kernel density plot of the input x and an overlay.
Inputs
- x = matrix (column vector) in which the sample data is stored.
- distname = string, optional distribution name to assume as the parent distribution for the sample. Default value is 'normal'.
- kernel = Integer between 1 and 7 indicating which kernel to use.
- 1 - Bivwight
- 2 - Cosine
- 3 - Epanechnikov {default}
- 4 - Gaussian
- 5 - Parzen
- 6 - Triangle
- userw = scalar, the optional window width to use in the kernel calculation. If not specified, then the optimal window width is used according to the calculation: translate = scalar, axis translation.
Examples
plotkd(x)
plotkd(x,'normal')