::Free Statistics and Forecasting Software::

v1.2.1

 

:: ML Fitting and QQ Plot - Beta Distribution - Free Statistics Software (Calculator) ::

All rights reserved. The non-commercial (academic) use of this software is free of charge. The only thing that is asked in return is to cite this software when results are used in publications.

This free online software (calculator) computes the shape1 and shape2 parameter of the Beta distribution fitted against any data series that is specified. The computation is performed by means of the Maximum-likelihood method. In addition the PPCC Contour Plot (Probability Plot Correlation Coefficient Contour Plot) and the QQ Plot are shown.

Note: it is often not possible to find optimal values for shape1 and shape2. The reason is that the estimation algorithm need good starting values.

Special thanks to 'Kyle' for pointing out the missing 'xbar' in line 39 of the R code!

Enter (or paste) your data delimited by hard returns.

Send output to:
Data
[reset data]
 
minimum value of shape1 parameter 
maximum value of shape1 parameter 
minimum value of shape2 parameter 
maximum value of shape2 parameter 
Chart options
Width:
Height:



Source code of R module
Top | Output | Charts | References



Cite this software as:
Wessa P., (2015), Maximum-likelihood Beta Distribution Fitting (v1.0.6) in Free Statistics Software (v1.2.1), Office for Research Development and Education, URL http://www.wessa.net/rwasp_fitdistrbeta.wasp/
The R code is based on :
Venables, W. N. and Ripley, B. D. (2002), Modern Applied Statistics with S., Fourth edition., Springer.
Top | Output | Charts | References

To cite Wessa.net in publications use:
Wessa, P. (2017), Free Statistics Software, Office for Research Development and Education,
version 1.2.1, URL https://www.wessa.net/

© All rights reserved. Academic license for non-commercial use only.
The free use of the scientific content, services, and applications in this website is granted for non commercial use only. In any case, the source (url) should always be clearly displayed. Under no circumstances are you allowed to reproduce, copy or redistribute the design, layout, or any content of this website (for commercial use) including any materials contained herein without the express written permission.

Information provided on this web site is provided "AS IS" without warranty of any kind, either express or implied, including, without limitation, warranties of merchantability, fitness for a particular purpose, and noninfringement. We use reasonable efforts to include accurate and timely information and periodically update the information, and software without notice. We make no warranties or representations as to the accuracy or completeness of such information (or software), and it assumes no liability or responsibility for errors or omissions in the content of this web site, or any software bugs in online applications. Your use of this web site is AT YOUR OWN RISK. Under no circumstances and under no legal theory shall we be liable to you or any other person for any direct, indirect, special, incidental, exemplary, or consequential damages arising from your access to, or use of, this web site.

Software Version : 1.2.1
Algorithms & Software : Patrick Wessa, PhD
Server : wessa.net

About | Comments, Feedback & Errors | Privacy Policy | Statistics Resources | Wessa.net Home

 © Wessa.Net 2002-2017