the art of r programming data

The Art of R Programming: A Tour of Statistical Software Design ppt

Ngày tải lên : 23/03/2014, 05:24

... .Rprofile located either in your home directory or in the directory from which you are running R. The latter directory is searched for this file first, which allows you to have custom profiles for ... that the exam 1 scores, which are stored in the first column of our data frame, are collectively referred to as examsquiz[,1]. Omission of the first subscript (the row number) means that we are referring ... auxiliary packages to my R search path. Like most programs, R has the notion of your current working directory. Upon startup, this will be the directory from which you launched R, if you’re using...

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Tài liệu Develop computer programs for simplifying sums that involve binomial coefficients: The Art of Computer Programming, Volume 1: Fundamental Algorithms pdf

Ngày tải lên : 20/12/2013, 19:15

... similar, but much shorter, time lag took place before the third phase of the proof theory ﬂowered. In the 1940s, the main ideas for the automated discovery of recurrence relations for hypergeometric ... of Problem 2 above, write out the complete proof of the identity, using the full text of the standardized WZ proof together with the appropriate rational function certiﬁcate. 4. For each of the ... involving rational numbers is thus to compute some normal form for A−B, and then check whether the numerator equals 0. The reader who prefers canonical forms might remark that rational numbers do have...

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Tài liệu The Art of Assembly Language Programming P1 ppt

Ngày tải lên : 12/12/2013, 22:15

... 2001, By Randall Hyde Page 3 5.1 Questions 119 5.2 Programming Projects for Chapter Two 124 5.3 Programming Projects for Chapter Three 124 5.4 Programming Projects for Chapter Four 125 5.5 ... Chapter 128 5.5.4 Creating and Modifying HLA Programs 129 5.5.5 Writing a New Program 129 5.5.6 Correcting Errors in an HLA Program 130 5.5.7 Write Your Own Sample Program 131 5.6 Laboratory Exercises ... Support 479 4.12 Putting It All Together 481 5.1 Chapter Overview 483 5.2 Records 483 5.3 Record Constants 485 5.4 Arrays of Records 486 5.5 Arrays/Records as Record Fields 487 5.6 Controlling...

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Tài liệu The Art of Assembly Language Programming P2 ppt

Ngày tải lên : 22/12/2013, 19:17

... chapter. The material for Chapter One appears in the “ch01” subdirectory of the “volume1” directory in the AoA directory tree, the material for Chapter Two appears in the “ch02” subdirectory of the ... identifier. You must pick an appropriate, descriptive, name for your program. In particular, pgmID would be a horrible choice for any real program. If you are writing programs as part of a course ... functions, or are of little interest to the application programmer. Eight of these bits (or flags) are of interest to application programmers writing assembly language programs. These are the overflow,...