| Main Title |
Fitting Statistical Distributions to Air Quality Data by the Maximum Likelihood Method. |
| Author |
Holland, D. M. ;
Fitz-Simons, T. ;
|
| CORP Author |
Environmental Monitoring Systems Lab., Research Triangle Park, NC. |
| Year Published |
1982 |
| Report Number |
EPA-600/J-81-160; |
| Stock Number |
PB84-174606 |
| Additional Subjects |
Air pollution ;
Statistical distributions ;
Concentration(Composition) ;
Normal density functions ;
Weibull density functions ;
Probability theory ;
Reprints ;
Air quality data ;
Maximum likelihood estimation ;
Lognormal density functions ;
Gamma density functions ;
Johnson density functions ;
Beta density functions ;
Goodness of fit ;
MAXFIT computer program
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB84-174606 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
A computer program has been developed for fitting statistical distributions to air pollution data using maximum likelihood estimation. Appropriate uses of this software are discussed and a grouped data example is presented. The program fits the following continuous distributions: normal, three-parameter lognormal, three-parameter gamma, three-parameter Weibull, Johnson (S sub B), and four-parameter beta. The parameters of each distribution are estimated by closed solutions and the Nelder-Mead Simplex iterative search. Graphical output contains a plot of the fitted distribution superimposed upon the histogram of the data for each model. Six goodness-of-fit criteria are supplied and ranked by the program to aid in the selection of the most appropriate choice among the six models. |
| Availability Notes |
Pub. in Atmospheric Environment v16, n5 p1071-1076. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Fitting Statistical Distributions to Air Quality Data by the Maximum Likelihood Method. |
| PUB Date Free Form |
1982 |
| Category Codes |
13B; 12A; 9B; 68A |
| NTIS Prices |
Not available NTIS |
| Primary Description |
600/08 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
416025456 |
| Origin |
NTIS |
| Type |
CAT |
