Search for dissertations about: "fit statistic"

Showing result 1 - 5 of 7 swedish dissertations containing the words fit statistic.

  2. 1. On the Measurement of Model Fit for Sparse Categorical Data

    Author : Katrin Kraus; Dag Sörbom; Ghazi Shukur; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; goodness-of-fit; sparseness; model fit; categorical data; fit statistic; sparse contingency table; Statistics; Statistik;

    Abstract : This thesis consists of four papers that deal with several aspects of the measurement of model fit for categorical data. In all papers, special attention is paid to situations with sparse data. READ MORE

  4. 2. Random Multigraphs : Complexity Measures, Probability Models and Statistical Inference

    Author : Termeh Shafie; Ove Frank; Krzysztof Nowicki; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; multigraph; vertex labeled graph; edge labeled graph; isomorphism; edge multiplicity; simplicity and complexity; entropy; joint information; information divergence; goodness-of-fit; Statistics; statistik;

    Abstract : This thesis is concerned with multigraphs and their complexity which is defined and quantified by the distribution of edge multiplicities. Two random multigraph models are considered.  The first model is random stub matching (RSM) where the edges are formed by randomly coupling pairs of stubs according to a fixed stub multiplicity sequence. READ MORE

  5. 3. Some Contributions to Description and Validation of the Extreme Value Distribution

    Author : MirNabi PirouziFard; Statistiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; weighted least squares estimator.; probability plot; power of tests; extreme value distribution; variances and covariances; goodness-of-fit tests; order statistics; Approximations of means;

    Abstract : This thesis focuses on the validation and description of the Gumbel distribution. Since this is a scale and location parameter distribution, the generalized least squares regression of the order statistics on the expected values can be used, without the necessity of iteration, to obtain the best linear unbiased estimates of the parameters. READ MORE

  6. 4. Essays on structural equation modelling with applications of the basic univariate twin model

    Author : Stefan Mattson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Informatics; computer and systems science; Informatik; data- och systemvetenskap; Informatics; computer and systems science; Informatik; data- och systemvetenskap; statistik; Statistics;

    Abstract : Structural equation models have proven useful for studies of genetic and environmental effects forvarious traits end the classical twin study has been considered as a powerful design for such studies. This thesis consist of five papers dealing with the analysis of structural equation models with applications of the basic univariate twin model. READ MORE

  7. 5. Pre-testing and specification search in an autoregressive moving average process with extension to unit root cases

    Author : Thimothy Oke; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Statistics; Statistik; Statistics; Statistik; Statistics; statistik;

    Abstract : Several methods are applied in well defined contexts in the search for an appropriatestatistical model to fit a data set. Preliminary tests of significance for this end aretermed pre-testing. The aim of this study was to investigate some of the consequencesof such pre-testing in a few specific time series processes. READ MORE