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:: Concentration - 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 calculator computes the following Concentration statistics: entropy, maximum entropy, normalized entropy, exponential index, Lorenz curve, Herfindahl index, Gini coefficient, and concentration coefficient. To be used with (absolute) frequencies.

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

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Concentration - Ungrouped Data
Entropy1.392321
Maximum Entropy1.609438
Normalized Entropy0.865098
Exponential Index0.248498
Herfindahl0.285000
Normalized Herfindahl0.106250
Gini Coefficient0.360000
Concentration Coefficient0.450000
Categories5

Concentration 2 - Ungrouped Data
CategoryElements (Absolute)Elements (Relative)Entropy (Absolute)Entropy (Relative)
180.0000000.4000000.3665160.263241
260.0000000.3000000.3611920.259417
310.0000000.0500000.1497870.107580
420.0000000.1000000.2302590.165377
530.0000000.1500000.2845680.204384

Concentration 3 - Ungrouped Data
CategoryElements (Absolute Cumulated)Elements (Relative Cumulated)Entropy (Absolute Cumulated)Entropy (Relative Cumulated)
180.0000000.4000000.3665160.263241
2140.0000000.7000000.7277080.522658
3150.0000000.7500000.8774950.630239
4170.0000000.8500001.1077530.795616
5200.0000001.0000001.3923211.000000

Concentration 4 - Lorenz Curve - Ungrouped Data
Cumulative % of populationCumulative % of variable
ExpectedObserved
0%0.0000000.000010
20%0.2000000.050000
40%0.4000000.150000
60%0.6000000.300000
80%0.8000000.600000
100%1.0000001.000000




Concentration

Relative Contribution

Cumulative Relative Contribution

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Last computationDelete history
Server DateModuleCommand
Thu, 23 Oct 2014 01:34:31 +0100ConcentrationPrint | Word | Excel | Blog this | Delete
Thu, 23 Oct 2014 01:34:31 +0100Start of session-
Top | Output | Charts | References | History | Feedback

To cite Wessa.net in publications use:
Wessa, P. (2014), Free Statistics Software, Office for Research Development and Education,
version 1.1.23-r7, URL http://www.wessa.net/

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Software Version : 1.1.23-r7
Algorithms & Software : Patrick Wessa, PhD
Server : www.wessa.net

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