Weibulldf and Release Notes Version 6 7: Difference between pages

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===Purpose===


Weibull distribution.
Version 6.7 of PLS_Toolbox and Solo was released in March, 2012.


===Synopsis===
For general product information, see [http://www.eigenvector.com/software/pls_toolbox.htm PLS_Toolbox Product Page]. For information on Solo, see [http://www.eigenvector.com/software/solo.htm Solo Product Page].


:prob = weibulldf(function,x,a,b)
(back to [[Release Notes PLS Toolbox and Solo]])


===Description===
==NEW FEATURES==


Estimates cumulative distribution function (cumulative, cdf), probability density function (density, pdf), quantile (inverse of cdf), or random numbers for a Weibull distribution.
===Design Of Experients (DOE) Tools===
* bla


This distribution is used to model lifetime data (time to failure). It is skewed to the right, but may appear symmetric for data in which there are relatively no small outcomes. Negative values in the sample are ignored.
===Other Method Improvements===
* bla
 
===Preprocessing===
* bla
 
===Import / Export===
* bla
 
===DataSet Editor===
* bla


===Plot Controls===
* Selectable plot themes. [[Image:Figbg_color.gif|thumb|| ]]
* bla


===[[AnalysisWindow_Layout|Analysis Window]]===
* Show CV results for confusion table when available.
* Improved [[modelcache]] performance and string handling.


====Inputs====
===[[WorkspaceBrowser_Layout|Workspace Browser]] ===
* Drag Drop - Enable dragging and dropping of system files onto the Browser window as well as to Analysis window. Enhanced highlighting of drop location.


* '''function''' =  [ {'cumulative'} | 'density' | 'quantile' | 'random' ], defines the functionality to be used. Note that the function recognizes the first letter of each string so that the string could be: [ 'c' | 'd' | 'q' | 'r' ].
===Command-line Tool Changes===
* bla


* '''x''' = matrix in which the sample data is stored, in the interval (-inf,inf).


*  '''for''' function=quantile - matrix with values in the interval (0,1).
==NEW FUNCTIONS AND FILES==


*   '''for''' function=random - vector indicating the size of the random matrix to create.
*''Full Support for Matlab R2012a''


* '''a''' = scale parameter (real).
===Misc New Functions===
:[[autoexport]] - Exports a DataSet object to a file of the specified format.
:[[classsummary]] - List class and axisscale distributions for a DataSet.
:[[figuretheme]] - Resets a figure background and axes to a specified color.
:[[meantrimmed]] - Trimmed mean.
:[[mediantrimmed]] - Trimmed median.
:[[windowfilter]] - Spectral filtering.


*  '''b''' = shape parameter (real and positive).
===Design of Analysis Tools===
:[[anovadoe]]        - Function to perform ANOVA for 2^k factorial model X, Y data


'''Note''': If inputs (x, a, and b) are not equal in size, the function will attempt to resize all inputs to the largest input using the RESIZE function.
===Other Changes===


'''Note''': Functions will typically allow input values outside of the acceptable range to be passed but such values will return NaN in the results.
:[[crossval]] - improved display of classification results, improved integration with model input
 
===Examples===
 
====Cumulative:====
 
>> prob = weibulldf('c',2,1,2)
 
prob =
 
    0.9817
 
>> x    = [0:0.1:10];
 
>> plot(x,weibulldf('c',x,1,2),'b-',x,weibulldf('c',x,3,7),'r-')
 
====Density:====
 
>> prob = weibulldf('d',2,1,1)
 
prob =
 
    0.1353
 
>> x    = [0:0.1:10];
 
>> plot(x,weibulldf('d',x,2,1),'b-',x,weibulldf('d',x,0.5,1),'r-')
 
====Quantile:====
 
>> prob = weibulldf('q',0.5,1,2)
 
prob =
 
    0.8326
 
====Random:====
 
>> prob = weibulldf('r',[4 1],2,1)
 
ans =
 
    5.4812
 
    4.9755
 
    1.0562
 
    4.4820
 
===See Also===
 
[[betadr]], [[cauchydf]], [[chidf]], [[expdf]], [[gammadf]], [[gumbeldf]], [[laplacedf]], [[logisdf]], [[lognormdf]], [[normdf]], [[paretodf]], [[raydf]], [[triangledf]], [[unifdf]]

Revision as of 10:36, 7 March 2012


Version 6.7 of PLS_Toolbox and Solo was released in March, 2012.

For general product information, see PLS_Toolbox Product Page. For information on Solo, see Solo Product Page.

(back to Release Notes PLS Toolbox and Solo)

NEW FEATURES

Design Of Experients (DOE) Tools

  • bla

Other Method Improvements

  • bla

Preprocessing

  • bla

Import / Export

  • bla

DataSet Editor

  • bla

Plot Controls

Analysis Window

  • Show CV results for confusion table when available.
  • Improved modelcache performance and string handling.

Workspace Browser

  • Drag Drop - Enable dragging and dropping of system files onto the Browser window as well as to Analysis window. Enhanced highlighting of drop location.

Command-line Tool Changes

  • bla


NEW FUNCTIONS AND FILES

  • Full Support for Matlab R2012a

Misc New Functions

autoexport - Exports a DataSet object to a file of the specified format.
classsummary - List class and axisscale distributions for a DataSet.
figuretheme - Resets a figure background and axes to a specified color.
meantrimmed - Trimmed mean.
mediantrimmed - Trimmed median.
windowfilter - Spectral filtering.

Design of Analysis Tools

anovadoe - Function to perform ANOVA for 2^k factorial model X, Y data

Other Changes

crossval - improved display of classification results, improved integration with model input