A Course in Categorical Data Analysis (Chapman & Hall Texts by Thomas Leonard

By Thomas Leonard

Specific data-comprising counts of people, gadgets, or entities in numerous categories-emerge often from many parts of research, together with medication, sociology, geology, and schooling. they supply very important statistical info which may result in real-life conclusions and the invention of clean wisdom. consequently, the facility to control, comprehend, and interpret express info turns into of interest-if no longer essential-to execs and scholars in a extensive variety of disciplines.

Although t-tests, linear regression, and research of variance are valuable, legitimate tools for research of dimension info, express facts calls for a distinct technique and strategies usually now not encountered in introductory data classes. constructed from lengthy event in educating express research to a multidisciplinary mixture of undergraduate and graduate scholars, A path in specific info research provides the simplest, simplest methods of extracting real-life conclusions from contingency tables. the writer makes use of a Fisherian method of express info research and contains various examples and actual info units. even supposing he deals S-PLUS workouts in the course of the web, readers should not have complete wisdom of a statistical software program package.

In this distinct textual content, the writer chooses tools and an technique that nurtures intuitive pondering. He trains his readers to concentration now not on discovering a version that matches the information, yet on utilizing assorted types which could bring about significant conclusions. The ebook deals a few uncomplicated, cutting edge ideas no longer highighted in different texts that help in making the e-book obtainable to a extensive, interdisciplinary viewers. A direction in express info research permits readers to speedy use its supplying of instruments for drawing clinical, scientific, or real-life conclusions from express facts units.

Show description

Read or Download A Course in Categorical Data Analysis (Chapman & Hall Texts in Statistical Science) PDF

Similar probability & statistics books

A handbook of statistical analyses using Stata

Stata - the robust statistical software program package deal - has streamlined info research, interpretation, and presentation for researchers and statisticians around the globe. as a result of its strength and broad gains, besides the fact that, the Stata manuals are fairly unique and vast. the second one variation of A instruction manual of Statistical Analyses utilizing Stata describes the positive factors of the most recent model of Stata - model 6 - in a concise, handy structure.

Numerical Methods for Finance (Chapman & Hall/CRC Financial Mathematics Series)

That includes overseas individuals from either and academia, Numerical tools for Finance explores new and appropriate numerical equipment for the answer of sensible difficulties in finance. it's one of many few books solely dedicated to numerical tools as utilized to the monetary box. providing cutting-edge tools during this zone, the e-book first discusses the coherent danger measures concept and the way it applies to useful possibility administration.

Statistics of Random Processes: II. Applications

The topic of those volumes is non-linear filtering (prediction and smoothing) idea and its software to the matter of optimum estimation, keep watch over with incomplete information, info conception, and sequential trying out of speculation. the necessary mathematical historical past is gifted within the first quantity: the speculation of martingales, stochastic differential equations, absolutely the continuity of likelihood measures for diffusion and Ito methods, parts of stochastic calculus for counting tactics.

Machine Learning in Medicine - a Complete Overview

The present publication is the 1st ebook of a whole assessment of computing device studying methodologies for the scientific and health and wellbeing zone. It was once written as a coaching better half and as a must-read, not just for physicians and scholars, but in addition for anybody occupied with the method and growth of healthiness and wellbeing and fitness care.

Extra info for A Course in Categorical Data Analysis (Chapman & Hall Texts in Statistical Science)

Sample text

16 Perform a significance test to investigate whether or not substantially more students obtain a D rather than an F. 7. Perform the calculations for the B2 test (a) using prog1 and (b) using a hand calculator. Also perform the calculations for X2, X;, and LRS. Let Y '" B«(}, n) denote a single binomial frequency, and let U = log{Y/(n - Y)}, a = log{(} /(1 - On, and w(O) = 0- 1(1 - 0)-1. Then, when n is large, the distribution of U is approximately normal with mean a and variance n- l w(O). 5, use this result to find an approximation to p(Y ~ 460).

Ij K ~ ij (i 1, 2; j = 1, 2), where the ~ij are completely specified, and sum to unity, the distribution of BZ, with eij = N~ij' where N = Y**, is approximately chi-squared, under HJ, with three degrees of freedom. , Multiplying each ~ij by 71 556 gives our appropriate eij. Our observed test statistic on three degrees of freedom is therefore B; Other 5 y Y 5 ='iosebleed ;=1 j=1 : l' = y) = (nlCy)(n2Cml_y)/(nCml)' ) ... , min(nl , ml)' As an example, consider the table max (0 , m 1 -n 2, 2 B; L L Yij [log(Yij / 57 FISHER'S EXACT TEST 51 For the two-sided version of Fisher's exact test we should consider the significance probability oc p = 2min{p(Yll :; y),p(Yll 2: y)}, where y is the value of Yl l actually observed.

Ir and meaningful way. 6, for the single multinomial model. It therefore does lint. n·ally matter, for the purposes of an association analysis, whether or /lOt. w(~ regard the row totals a'l fixed. ~plmdlmt. Il1'l Ill' IIl1f, I'ach car is n·d, l II TWO-BY-TWO CONTINGENCY TABLES 52 and whether or not each car is British. Suppose that our aggregate data are recorded as follows British Not British I' Red 31 20 51 Not Red 32 30 63 11 Denote the cell frequencies, as before, by Yij, for i I , 2 and j 1,2, and let the Yij be numerical realizations of random variables Yij.

Download PDF sample

Rated 4.92 of 5 – based on 23 votes