Hybrid conditional plot of goodness-of-fit for gumbel distribution (Plot bersyarat hibrid bagi ujian kebagusan penyuaian untuk taburan gumbel)

A Gumbel model is an extreme value model that describes the event of extreme behaviour. The Gumbel model has an exponential tail. Generally, the goodness-of-fit for the Gumbel model is evaluated by the graphical form of probability plot (PP) and quantiles plot (QQ). The model fits the observed value...

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Main Authors: Nahdiya Zainal Abidin, Mohd Bakri Adam, Habshah Midi
Format: Article
Published: Penerbit Universiti Kebangsaan Malaysia 2012
Online Access:http://journalarticle.ukm.my/5459/
http://www.ukm.my/jqma/index2.html
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author Nahdiya Zainal Abidin,
Mohd Bakri Adam,
Habshah Midi,
author_facet Nahdiya Zainal Abidin,
Mohd Bakri Adam,
Habshah Midi,
author_sort Nahdiya Zainal Abidin,
building Tun Sri Lanang Library
collection Institutional Repository
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
continent Asia
country Malaysia
description A Gumbel model is an extreme value model that describes the event of extreme behaviour. The Gumbel model has an exponential tail. Generally, the goodness-of-fit for the Gumbel model is evaluated by the graphical form of probability plot (PP) and quantiles plot (QQ). The model fits the observed values if the probability and the quantiles of the hypothetical distribution are linearly plotted against that of the observed values. However, the QQ plot is quite sensitive to the deviation at the tail of the plot, as opposed to the PP plot which is somewhat robust. Thus, distribution of extreme values is likely to deviate from the linear line at the tail of the QQ plot. An alternative approach of plotting the Gumbel model is given, in which the approach is expected to produce the linear plot. The conditional plot and stabilised plot are employed and the performances of both are compared. The plots are transformed into the hybrid plot so that the departures of the hypothetical quantiles values from the observed quantiles values are illustrated. The result shows that the hybrid conditional QQ plot is a better plot of goodness-of-fit for Gumbel model.
format Article
id my-ukm.journal-5459
institution Universiti Kebangsaan Malaysia
publishDate 2012
publisher Penerbit Universiti Kebangsaan Malaysia
record_format eprints
spelling my-ukm.journal-54592012-08-28T08:17:06Z http://journalarticle.ukm.my/5459/ Hybrid conditional plot of goodness-of-fit for gumbel distribution (Plot bersyarat hibrid bagi ujian kebagusan penyuaian untuk taburan gumbel) Nahdiya Zainal Abidin, Mohd Bakri Adam, Habshah Midi, A Gumbel model is an extreme value model that describes the event of extreme behaviour. The Gumbel model has an exponential tail. Generally, the goodness-of-fit for the Gumbel model is evaluated by the graphical form of probability plot (PP) and quantiles plot (QQ). The model fits the observed values if the probability and the quantiles of the hypothetical distribution are linearly plotted against that of the observed values. However, the QQ plot is quite sensitive to the deviation at the tail of the plot, as opposed to the PP plot which is somewhat robust. Thus, distribution of extreme values is likely to deviate from the linear line at the tail of the QQ plot. An alternative approach of plotting the Gumbel model is given, in which the approach is expected to produce the linear plot. The conditional plot and stabilised plot are employed and the performances of both are compared. The plots are transformed into the hybrid plot so that the departures of the hypothetical quantiles values from the observed quantiles values are illustrated. The result shows that the hybrid conditional QQ plot is a better plot of goodness-of-fit for Gumbel model. Penerbit Universiti Kebangsaan Malaysia 2012 Article PeerReviewed Nahdiya Zainal Abidin, and Mohd Bakri Adam, and Habshah Midi, (2012) Hybrid conditional plot of goodness-of-fit for gumbel distribution (Plot bersyarat hibrid bagi ujian kebagusan penyuaian untuk taburan gumbel). Journal of Quality Measurement and Analysis, 8 (1). pp. 43-53. ISSN 1823-5670 http://www.ukm.my/jqma/index2.html
spellingShingle Nahdiya Zainal Abidin,
Mohd Bakri Adam,
Habshah Midi,
Hybrid conditional plot of goodness-of-fit for gumbel distribution (Plot bersyarat hibrid bagi ujian kebagusan penyuaian untuk taburan gumbel)
title Hybrid conditional plot of goodness-of-fit for gumbel distribution (Plot bersyarat hibrid bagi ujian kebagusan penyuaian untuk taburan gumbel)
title_full Hybrid conditional plot of goodness-of-fit for gumbel distribution (Plot bersyarat hibrid bagi ujian kebagusan penyuaian untuk taburan gumbel)
title_fullStr Hybrid conditional plot of goodness-of-fit for gumbel distribution (Plot bersyarat hibrid bagi ujian kebagusan penyuaian untuk taburan gumbel)
title_full_unstemmed Hybrid conditional plot of goodness-of-fit for gumbel distribution (Plot bersyarat hibrid bagi ujian kebagusan penyuaian untuk taburan gumbel)
title_short Hybrid conditional plot of goodness-of-fit for gumbel distribution (Plot bersyarat hibrid bagi ujian kebagusan penyuaian untuk taburan gumbel)
title_sort hybrid conditional plot of goodness-of-fit for gumbel distribution (plot bersyarat hibrid bagi ujian kebagusan penyuaian untuk taburan gumbel)
url http://journalarticle.ukm.my/5459/
http://www.ukm.my/jqma/index2.html
url_provider http://journalarticle.ukm.my/