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Applied statistics: using SPSS, STATISTICA, MATLAB and R by Joaquim P. Marques de Sá PDF

By Joaquim P. Marques de Sá

ISBN-10: 3540719717

ISBN-13: 9783540719717

Meant for an individual desiring to use statistical research to a wide number of technological know-how and engineering difficulties, this e-book indicates tips to use SPSS, MATLAB, STATISTICA and R for info description, statistical inference, category and regression, issue research, survival facts and directional facts. The 2d variation contains the R language, a brand new part on bootstrap estimation equipment and a far better therapy of tree classifiers, plus extra examples and routines.

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Sav in current operation). spo), print operations, etc. Spreadsheet edition. View configuration of spreadsheets, namely of value labels and gridlines. Insertion and deletion of variables and cases, and operations with the data, namely sorting and transposition. More operations with data, such as recoding and computation of new variables. Statistical analysis tools. Operations with graphs. Variable definition reports, running scripts, etc. Besides the menu options there are alternative ways to perform some operations using icons.

An important one, since it occurs frequently in statistical studies, is the binomial distribution. It describes the probability of occurrence of a “success” event k times, in n independent trials, performed in the same conditions. The complementary “failure” event occurs, therefore, n – k times. The probability of the “success” in a single trial is denoted p. The complementary probability of the failure is 1 – p, also denoted q. Details on this distribution can be found in Appendix B. The respective probability function is:  n  n P ( X = k ) =   p k (1 − p) n − k =   p k q n − k .

V3 36 35 36 V4 39 39 40 V5 37 36 38 For future use we may now proceed to save this data frame in e:meteo, say, with save(meteo,file=“e:meteo”). At a later session we can immediately load in the data frame with load(“e:meteo”). 34 2 Presenting and Summarising the Data It is often convenient to have appropriate column names for the data, instead of the default V1, V2, etc. names parameter value. names=l) > meteo PMax RainDays T80 T81 T82 1 181 143 36 39 37 2 114 132 35 39 36 3 101 125 36 40 38 ...

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Applied statistics: using SPSS, STATISTICA, MATLAB and R by Joaquim P. Marques de Sá


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