Statistical Description of Data part 5

... . . 1. red # of red males N 11 # of red females N 21 # of green females N 22 # of green males N 12 # of males N 1 ⋅ # of females N 2 ⋅ 2. green # of red N ⋅ 1 # of green N ⋅ 2 ... association. In this case, the probability of a particular value of x given a particular value of y should be the same as the probability of that value of x regardless of y. Therefore...

Ngày tải lên: 28/10/2013, 22:15

... Chapter 14. Statistical Description of Data 14.0 Introduction In this chapter and the next, the concept of data enters the discussion more prominently than before. Dataconsist of numbers, of course. ... this chapter. 609 610 Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0 -52 1-43108 -5) Cop...

Ngày tải lên: 20/10/2013, 17:15

... significance of a difference of means is not the number of standard deviations that they are apart, but the number of so-called standard errors that they are apart. The standard error of a set of values ... moment)"); } 614 Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0 -52 1-43108 -5) Copy...

Ngày tải lên: 24/10/2013, 15:15

... square root of the number of points in the sample. 616 Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0 -52 1-43108 -5) Copyright ... significance of a difference of means is not the number of standard deviations that they are apart, but the number of so-called standard errors that they are apart....

Ngày tải lên: 24/10/2013, 15:15

... 620 Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0 -52 1-43108 -5) Copyright (C) 1988-1992 by Cambridge ... *prob=gammq(0 .5* (*df),0 .5* (*chsq)); Chi-square probability function. See §6.2. } 622 Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIE...

Ngày tải lên: 28/10/2013, 22:15

... deviation σ(z) ≈ 1 √ N − 3 (14 .5. 8) 638 Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0 -52 1-43108 -5) Copyright (C) 1988-1992 ... or erfcc of §6.2. A small value of (14 .5. 2) indicates that the 14 .5 Linear Correlation 637 Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING...

Ngày tải lên: 07/11/2013, 19:15

... difference of ranks. *d += SQR(wksp1[j]-wksp2[j]); 642 Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0 -52 1-43108 -5) Copyright ... r), but could not 640 Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0 -52 1-43108 -5)...

Ngày tải lên: 07/11/2013, 19:15

... effective D as the average 646 Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0 -52 1-43108 -5) Copyright (C) 1988-1992 by Cambridge ... points. quadct(x1[j],y1[j],x1,y1,n1,&fa,&fb,&fc,&fd); (*quadvl)(x1[j],y1[j],&ga,&gb,&gc,&gd); *d1=FMAX(*d1,fabs(fa-ga)); *d1=FMAX(*d1,fabs(...

Ngày tải lên: 07/11/2013, 19:15

... 0.371 0. 257 2 4 0 0.086 −0.143 −0.086 0. 257 0.886 2 5 5 −0.084 0.021 0.103 0.161 0.196 0.207 0.196 0.161 0.103 0.021 −0.084 4 4 4 0.0 35 −0.128 0.070 0.3 15 0.417 0.3 15 0.070 −0.128 0.0 35 4 5 5 0.042 ... 650 Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0 -52 1-43108 -5) Copyright (C) 1988-19...

Ngày tải lên: 15/12/2013, 04:15

... ×∇χ 2 (a cur )( 15. 5.3) where the constant is small enough not to exhaust the downhill direction. To use ( 15. 5.2) or ( 15. 5.3), we must be able to compute the gradient of the χ 2 function at any set of parameters ... Figure 15. 4.1. Also define a vector b of length N by b i = y i σ i ( 15. 4 .5) and denote the M vector whose components are the parameters to be fitted, a 1 , ,a M ,bya...

Ngày tải lên: 15/12/2013, 04:15