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Replacement for “rename” in dplyr

... function in dplyr (yet): http://cran.rstudio.org/web/packages/dplyr/dplyr.pdf The function below works (almost) the same if you don't want to load both plyr and dplyr rename <- function(dat, oldnames, newnames) { datnames <- colnames(dat) datnames[which(datnames %in% oldnames)] <- ne...
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How to reorder data.table columns (without copying)

...this in the first item here: datatable.r-forge.r-project.org/datatable-faq.pdf – Frank Dec 2 '15 at 21:51 ...
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What is the Linux equivalent to DOS pause?

...n devoted to this subject (apple2scans.net/files/1982-A2F2116-m-a2e-aiiedg.pdf). – Gellweiler Apr 6 '18 at 17:26 ...
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How big can a user agent string get?

...nswer has a good example of this happening). In fact, the EFF did a study (pdf) about it. – patridge Mar 8 '11 at 20:29 1 ...
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Saving interactive Matplotlib figures

...pecified file of the saved data) and editing as you see fit or (b) save as PDF/SVG/PostScript format and edit in some fancy figure editor like Adobe Illustrator (or Inkscape). EDIT post Fall 2012: As others pointed out below (though mentioning here as this is the accepted answer), Matplotlib since ...
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Why does the Scala compiler disallow overloaded methods with default arguments?

...ng.org/sites/default/files/sids/rytz/Mon,%202009-11-09,%2017:29/named-args.pdf It states: Overloading If there are multiple overloaded alternatives of a method, at most one is allowed to specify default arguments. So, for the time being at any rate, it's not going to work. You could do someth...
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C++ new int[0] — will it allocate memory?

... The standard (open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3337.pdf) does indeed say (3.7.4.1/2) that different calls to operator new[] should return different pointers. BTW, the new expression has some additional rules (5.3.4). I couldn't find any clue that new with 0 size is actually re...
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What do parentheses surrounding an object/function/class declaration mean? [duplicate]

...pec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf. Taken verbatim from the docs: 11.1.6 The Grouping Operator The production PrimaryExpression : ( Expression ) is evaluated as follows: Return the result of evaluating Expression. This may be of type Reference. I...
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Algorithms based on number base systems? [closed]

... full thesis of Okasaky is avaiable online: cs.cmu.edu/~rwh/theses/okasaki.pdf – Gigi Feb 6 '12 at 4:19 add a comment  |  ...
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What's the difference between backtracking and depth first search?

... Mentioned in page 1 of the linked pdf. – Steve Chavez Apr 29 at 23:10 add a comment  |  ...