Hi Abdullah, A good job of proof reading, something too often neglected in documentation.
Jim On Fri, Jun 11, 2021 at 4:51 PM Abdullah Khasawneh <abdullahkhasaw...@hotmail.com> wrote: > > Dear all, > > I have recently finished reading "Introduction to R" and enjoyed it and > benefited from it immensely. Thank you very much for your efforts. > > I feel the word "corrections" is a bit presumptuous, so below are a few > suggestions I have regarding the text. Please let me know if I am mistaken in > any. > > Thank you again. > > Best regards, > Abdullah Khasawneh > > ---------------------------------------------------------------- > > Page 2: > (Indeed most of the system supplied functions are themselves written in the S > language.)\ > I suggest a hyphen between the two highlighted words. > > Page 2: > We prefer to think of it of an environment within which many classical and > modern statistical techniques have been implemented. > Perhaps "as an environment"? > > Page 4: > The ‘Search Engine and Keywords’ link in the page loaded by help.start() is > particularly useful as it is contains a high-level concept list which > searches though available functions. > I think these should be "as it contains" and "through". > > Page 5: > Commands are separated either by a semi-colon (‘;’), or by a newline. > I think the two words have been connected inadvertently. > > Page 6: > When R is started at later time from the same directory it reloads the > workspace from this file. > I think it's "at a later time". > > Page 6: > ... but it can be quite hard to decide what they might be when the several > analyses have been conducted in the same directory. > Perhaps it should be "when several analyses", without "the". > > Page 7: > Notice that the assignment operator (‘<-’), which consists of the two > characters ‘<’ (“less than”) and ‘-’ (“minus”) occurring strictly > side-by-side and it ‘points’ to the object receiving the value of the > expression. > I suggest a comma here, and deleting "and it". > > Page 14: > Similarly character() is a empty character vector, and so on. > It should be "an empty". Also, a comma after "similarly" would be nice. > > Page 14: > ... makes it an object of length 5 consisting of just the former components > with even index. > Should it be "with even indices"? > > Page 17: > Since there is an builtin function var() to calculate... > I suggest "a built-in". > > Page 17: > Note that R’s a builtin function sd() is something different. > There is no need for the indefinite article, and perhaps "built-in" should be > hyphenated. > > Page 20: > For example, if the vector h contains 24 or fewer, numbers then the command... > The comma should be after the word "numbers". > > Page 20: > ... would use h to set up 3 by 4 by 2 array in Z. > I believe it's "a 3-by-4-by-2". I am not sure about the hyphenation, but > there should be an indefinite article. > > Page 21: > The result of the function is an array of the same size as a but with old > dimension given by perm[j] becoming the new j-th dimension. > It's "with the old dimension". > > Page 24: > In this case any vector argument, possibly cyclically extended, are of course > taken as row vectors. > Either "argument" should be pluralized, or other parts of the sentence > singularized. > > Page 27: > ... and by default1 character vectors are coerced to be factors, whose levels > are the unique values appearing in the vector. > Unfortunately, in the current edition of R, they are coerced to be character > variables, if I'm not mistaken. > > Page 30: > By default numeric items (except row labels) are read as numeric variables > and non-numeric variables, such as Cent.heat in the example, as factors. > I suggest a comma after "By default". Also, please refer to the note above > about coercion into factors. > > Page 47: > ... it replaces the value, in that environment, with the value of right hand > side. > Maybe it should be "of the right-hand side". > > Page 54: > ... (Akaike’s An Information Criterion)... > I think it's "Akaike information criterion". > > Page 63: > Although this is done automatically, it may useful to know that... > This is missing the verb "be". > > Page 66: > Also lm.obj may be list with a coefficients component of length 2... > I recommend adding the indefinite article "a" before the word "list". > > Page 68: > The identify() functions performs no plotting itself, but... > The word "functions" is pluralized. > > Page 76: > R does not have builtin capabilities for dynamic or interactive graphics, > e.g. rotating point clouds or to “brushing” (interactively highlighting) > points. > I suggest a hyphen in "built-in", and perhaps "for" instead of "to". > > Page 79: > ... platforms, considerable effort has gone into make the scripting > facilities as platform-independent as is feasible. > The gerund "making" should be used here. > > End of list. > Thank you for your patience. > ---------------------------------------------------------------- > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
