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The Gradient Test - Artur Lemonte - Bog - Elsevier Science Publishing Co Inc - Plusbog.dk

The Gradient Test - Artur Lemonte - Bog - Elsevier Science Publishing Co Inc - Plusbog.dk

The Gradient Test: Another Likelihood-Based Test presents the latest on the gradient test, a large-sample test that was introduced in statistics literature by George R. Terrell in 2002. The test has been studied by several authors, is simply computed, and can be an interesting alternative to the classical large-sample tests, namely, the likelihood ratio (LR), Wald (W), and Rao score (S) tests. Due to the large literature about the LR, W and S tests, the gradient test is not frequently used to test hypothesis. The book covers topics on the local power of the gradient test, the Bartlett-corrected gradient statistic, the gradient statistic under model misspecification, and the robust gradient-type bounded-influence test.

DKK 479.00
3

WISC-V - James A. Holdnack - Bog - Elsevier Science Publishing Co Inc - Plusbog.dk

WISC-V - James A. Holdnack - Bog - Elsevier Science Publishing Co Inc - Plusbog.dk

WISC-V: Clinical Use and Interpretation, Second Edition provides practical information for clinicians on the selection of subtest measures, along with their proper administration and interpretation. Full Scale IQ is identified as important for predicting relevant behaviors and primary index scores for characterizing the child’s strengths and weaknesses. Classroom indicators of low scores on each of these abilities are identified, with suggested interventions, accommodations and instructional strategies for low scorers. Coverage includes ethnic differences for the Full Scale IQ and each primary index score, along with evidence of the profound influence of parental attitudes and expectations. Several other societal and contextual factors relevant to understanding racial/ethnic differences are presented. Two chapters review use of the WISC-V for identifying learning disabilities, testing of individuals with dyslexia, and best-practice recommendations to ensure accurate diagnosis and intervention. Concluding chapters describe advances in the Q-interactive system platform allowing administration of the WISC-V on iPads and other tablets, and how clinicians can tailor assessment using select WISC-V subtests and features.

DKK 468.00
3

Environmental Data Analysis with MatLab - William Menke - Bog - Elsevier Science Publishing Co Inc - Plusbog.dk

Environmental Data Analysis with MatLab - William Menke - Bog - Elsevier Science Publishing Co Inc - Plusbog.dk

Environmental Data Analysis with MatLab is a new edition that expands fundamentally on the original with an expanded tutorial approach, new crib sheets, and problem sets providing a clear learning path for students and researchers working to analyze real data sets in the environmental sciences. Since publication of the bestselling Environmental Data Analysis with MATLAB®, many advances have been made in environmental data analysis. One only has to consider the global warming debate to realize how critically important it is to be able to derive clear conclusions from often noisy data drawn from a broad range of sources. The work teaches the basics of the underlying theory of data analysis and then reinforces that knowledge with carefully chosen, realistic scenarios. MATLAB®, a commercial data processing environment, is used in these scenarios. Significant content is devoted to teaching how it can be effectively used in an environmental data analysis setting. This new edition, though written in a self-contained way, is supplemented with data and MATLAB® scripts that can be used as a data analysis tutorial. New features include boxed crib sheets to help identify major results and important formulas and give brief advice on how and when they should be used. Numerical derivatives and integrals are derived and illustrated. Includes log-log plots with further examples of their use. Discusses new datasets on precipitation and stream flow. Topical enhancement applies the chi-squared test to the results of the generalized least squares method. New coverage of cluster analysis and approximation techniques that are widely applied in data analysis, including Taylor Series and low-order polynomial approximations; non-linear least-squares with Newton’s method; and pre-calculation and updating techniques applicable to real time data acquisition.

DKK 649.00
3

Analysis for Time-to-Event Data under Censoring and Truncation - Huan Wang - Bog - Elsevier Science Publishing Co Inc - Plusbog.dk

Analysis for Time-to-Event Data under Censoring and Truncation - Huan Wang - Bog - Elsevier Science Publishing Co Inc - Plusbog.dk

Survival Analysis for Bivariate Truncated Data provides readers with a comprehensive review on the existing works on survival analysis for truncated data, mainly focusing on the estimation of univariate and bivariate survival function. The most distinguishing feature of survival data is known as censoring, which occurs when the survival time can only be exactly observed within certain time intervals. A second feature is truncation, which is often deliberate and usually due to selection bias in the study design. Truncation presents itself in different ways. For example, left truncation, which is often due to a so-called late entry bias, occurs when individuals enter a study at a certain age and are followed from this delayed entry time. Right truncation arises when only individuals who experienced the event of interest before a certain time point can be observed. Analyzing truncated survival data without considering the potential selection bias may lead to seriously biased estimates of the time to event of interest and the impact of risk factors.

DKK 504.00
3

Poincare-Andronov-Melnikov Analysis for Non-Smooth Systems - Michal Pospisil - Bog - Elsevier Science Publishing Co Inc - Plusbog.dk

Poincare-Andronov-Melnikov Analysis for Non-Smooth Systems - Michal Pospisil - Bog - Elsevier Science Publishing Co Inc - Plusbog.dk

Poincare-Andronov-Melnikov Analysis for Non-Smooth Systems is devoted to the study of bifurcations of periodic solutions for general n-dimensional discontinuous systems. The authors study these systems under assumptions of transversal intersections with discontinuity-switching boundaries. Furthermore, bifurcations of periodic sliding solutions are studied from sliding periodic solutions of unperturbed discontinuous equations, and bifurcations of forced periodic solutions are also investigated for impact systems from single periodic solutions of unperturbed impact equations. In addition, the book presents studies for weakly coupled discontinuous systems, and also the local asymptotic properties of derived perturbed periodic solutions. The relationship between non-smooth systems and their continuous approximations is investigated as well. Examples of 2-, 3- and 4-dimensional discontinuous ordinary differential equations and impact systems are given to illustrate the theoretical results. The authors use so-called discontinuous Poincare mapping which maps a point to its position after one period of the periodic solution. This approach is rather technical, but it does produce results for general dimensions of spatial variables and parameters as well as the asymptotical results such as stability, instability, and hyperbolicity.

DKK 649.00
3