2.13.5.3 weibullfit(Pro)

1 Menu Information
2 Brief Information
3 Additional Information
4 Command Line Usage
5 X-Function Execution Options
6 Variables
7 Description
- 7.1 Percentile Line Tree Details
8 More Information
9 Related X-Functions

Menu Information

Statistics: Survival Analysis: Weibull Fit

Brief Information

Perform a Weibull fit on survival data

Additional Information

This feature is for OriginPro only.

Command Line Usage

1. weibullfit irng:=(1,2) censor:=0 

2. weibullfit irng:=(1,2) censor:=0 conf:=99 rt:=<new name:= Weibull>

3. weibullfit irng:=(1,2) censor:=0  xmin:=1E-4 xmax:=200;

X-Function Execution Options

Please refer to the page for additional option switches when accessing the x-function from script

Variables

Display Name	Variable Name	I/O and Type	Default Value	Description
Input	irng	Input Range		Specify input data range, including time data range and censor data range. Time data range Specify time data column Censor data range Specify censor data column
Censoring Value(s)	censor	Input vector		Specify the censored value.
Estimation Method	method	Input int	1	Specify the estimation method. Two methods are supported: Least Squares Maximum Likelihood
Confidence Level(%) for Parameters	conf	Input double	95	Text box to enter a confidence level to be used when computing errors for the survival function and upper and lower limits of the quartile estimates.
Covariance Matrix	cov	Input int	0	Select this check box to output covariance matrix. It is only accessible when Estimation Method = Least Squares.
Probability Plot	pplot	Input int	1	Specify whether to output a Weibull probability plot in the report sheet.
Percentile Line	percentile	Input Treednode	1	Available only when Probability Plot is selected. Select this checkbox to add percentile lines to P-P plot. See details below.
Survival Plot	sf	Input int	0	Select this check box to export survival plot.
Hazard Plot	hazard	Input int	0	Select this check box to export Hazard plot
X Minimum	xmin	Input double	1	For information on calculation of Auto value, see the Origin Help File.
X Maximum	xmax	Input double	99	For information on calculation of Auto value, see the Origin Help File.
Output Results	rt	Output ReportTree	[<input>]<new>	Specify the report worksheet destination
Plot Data	rd	Output ReportData	[<input>]<new>	Specify the destination of the plot data.

Description

This X-Function is used to perform Weibull fit on survival data.

Percentile Line Tree Details

Percentile Line Tree

The Percentile Line tree specifies percentile line options.

Syntax: percentile.Treenode:=<value>

Treenode	Label	Type	Default	Description
percentileType	Specify Percentile Lines by	int	0	Specify the type of percentile lines. Option list: 0: Percent(%) Specify percentile lines by percentage. 1: Time Specify percentile lines by time.
percentileValue	Percent Value(%)/Time Value	int	50	Specify the percent value (time value) when Percent(%) (Time) is selected for Specify Percentile Lines by.