Sökning: "median regression"

Visar resultat 1 - 5 av 135 avhandlingar innehållade orden median regression.

  1. 1. Nonlinear Quantile Regression for Longitudinal Data

    Författare :Andreas Karlsson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; bootstrap; dependent errors; median regression; Monte Carlo simulation; panel data; repeated measures; Statistics; Statistik; Biostatistics; Biostatistik;

    Sammanfattning : The overall objective of the two papers in this thesis is to examine the properties of the weighted nonlinear quantile regression estimator for the analysis of longitudinal data. To this end, the question of which weights to be used, the bias of the estimator and the possibility to calculate confidence intervals has to be examined. LÄS MER

  3. 2. Developing Median Regression for SURE Models : With Application to 3-Generation Immigrants' Data in Sweden

    Författare :Zangin Zeebari; Ghazi Shukur; Håkan Locking; Växjö universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Statistics; computer and systems science; Statistik; data- och systemvetenskap; Computer and Information Sciences Computer Science; Data- och informationsvetenskap;

    Sammanfattning : .... LÄS MER

  4. 3. Essays on Politics, Fiscal Institutions, and Public Finance

    Författare :Lovisa Persson; Eva Mörk; Jon H. Fiva; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Property taxation; housing market; fiscal institutions; balanced budget rule; local public finance; fiscal consolidation; political fragmentation; median voter model; regression discontinuity; citizen candidates; party effects; right-wing populism; welfare chauvinism.; Economics; Nationalekonomi;

    Sammanfattning : Essay 1 (with Mikael Elinder): We show that house prices in general did not respond to a large cut in the property tax in Sweden. Our estimates are based on rich register data covering more than 100,000 sales over a time period of two and a half years. LÄS MER

  5. 4. Rank Estimation in Elliptical Models : Estimation of Structured Rank Covariance Matrices and Asymptotics for Heteroscedastic Linear Regression

    Författare :Kristi Kuljus; Silvelyn Zwanzig; Dietrich von Rosen; Jana Jureckova; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; elliptical distributions; multivariate ranks; rank covariance matrix; linear rank regression; heteroscedastic errors; linear rank statistics; Mathematical statistics; Matematisk statistik;

    Sammanfattning : This thesis deals with univariate and multivariate rank methods in making statistical inference. It is assumed that the underlying distributions belong to the class of elliptical distributions. LÄS MER

  7. 5. On Median and Ridge Estimation of SURE Models

    Författare :Zangin Zeebari; Ghazi Shukur; Thomas Holgersson; Björn Holmquist; Jönköping University; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : This doctoral dissertation is a progressive generalization of some of the robust estimation methods in order to make those methods applicable to the estimation of the Seemingly Unrelated Regression Equations (SURE) models. The robust methods are each of the Least Absolute Deviations (LAD) estimation method, also known as the median regression, and the ridge estimation method. LÄS MER