Does R have quote-like operators like Perl's qw()?

Does R have quote-like operators like Perl's qw()? - No, but you can write it yourself: I have added this function to my Rprofile.site file (see ? which uses a similar strategy to hadley's answer:

perlop - perldoc.perl.org - I have added this function to my Rprofile.site file (see ?Startup if you are not familiar) qw <- function(x) unlist(strsplit(x, "[[:space:]]+")) qw("You can type text here

Quote and Quote-like Operators - A few operators such as &&= have special evaluation rules that can result in an They include variables, quote and quote-like operators, any expression in .. $r in the equation ($r = $m - $i*$n) where $i is a certain integer that makes $r have

Perl | Operators - They include variables, quote and quote-like operators, any expression in . $i*$ b) where $i is a certain integer that makes $r should have the same sign as the

PERL -- Operators - You may wish to review Regexp Quote-Like Operators, Quote-Like then we need to escape it, too; otherwise perl will think we're trying to \t tab \n newline \r carriage return \b backspace say qq|a-\t-b-\n-c|; #:a- -b- #:-c.

perlop - Quote-like Operators. In these operators, {} will represent a pair of delimiters that user choose. In this category there are

the perlop manpage - (If you are used to the awk behavior of using == for either string or numeric The operator is bistable, like a flip-flop, and emulates the line-range (comma) skip header lines s/^/> / if (/^$/ .. eof()); # quote body As an array operator: for (101 . The interpretation of the file permission operators -r, -R, -w, -W, -x and -X is

Perl Quote-like Operators Example - While we usually think of quotes as literal values, in Perl they function as operators, providing various kinds of interpolating and pattern matching capabilities. \t tab (HT, TAB) \n newline (LF, NL) \r return (CR) \f This is done as a second pass, after variables are

perl operator

Perl Operators - In Perl, the operator determines what operation is performed, independent of the type of the operands. For example $x + $y is always a numeric addition, and if

perlop - Perl - Operators - Simple answer can be given using the expression 4 + 5 is equal to 9. Here 4 and 5 are called operands and + is called operator. Perl language

Perl - Operators - A Perl operator is a series of one or more symbols used as part of the syntax of a language. Each operator operates on zero or more operands. Think of an operator as a special sort of function the parser understands and its operands as arguments. You've seen how Perl manages context through its operators.

PERL -- Operators - Concatenation of two strings. .= The concatenation assignment operator. eq: String equality (== is numeric equality). For a mnemonic just think of "eq" as a string.

Perl | Operators - It is a conditional operator which is a shorthand version of if-else statement. Perl program to demonstrate the working.

Perl matching operator - m operator in Perl is used to match a pattern within the given text. The string passed to m operator can be enclosed within any character which will be used as a

Perl Operators - The chomp() operator (or function) removes the last character in a string and returns a number of characters that was

Comparison operators for numbers and strings - In controlling the logic of a conditional expression logical operators are frequently required. In Perl, The logical AND operator is && and logical OR is || .

Perl Programming/Operators - The smart match operator ~~ is new in perl 5.10. To use it, you'll need to explicitly say that you're writing code for perl

What is //= in Perl? - It is documented in the Perl operators ( perldoc perlop ) in two places Also, in case you're wondering, the // operator appeared in the Perl

perl bitwise operators

The Bitwise Operators - The bitwise operators are similar to the logical operators, except that they work on a or using the bit patterns (this is just an example-you can't do this in Perl).

Perl Bitwise Operators Example - Binary AND Operator copies a bit to the result if it exists in both operands. Binary OR Operator copies a bit if it exists in eather operand. Binary XOR Operator copies the bit if it is set in one operand but not both. Binary Ones Complement Operator is unary and has the efect of 'flipping' bits.

perlop - (See also Integer Arithmetic and Bitwise String Operators.) Note that the width of the result is platform-dependent: ~0 is 32 bits wide on a 32-bit platform, but 64

Bitwise Operators (Programming Perl) - Like C, Perl has bitwise AND, OR, and XOR (exclusive OR) operators: &, |, and ^. You'll have noticed from your painstaking examination of the table at the start of

Bit operations for beginners - There are 4 bit operations, and, or, xor and inverse, which in Perl is accessable as the The distiction is that ~ is the "bitwise" not operator.

16. Working with Bits - Mastering Perl [Book] - Working with Bits Perl is a high-level language, so I don't have to play with The bitwise AND operator returns the bits set in both first and second arguments.

Perl shift operators and bitwise operators - Introduction for perl Bitwise operator and shift operator,

Perl: Bitwise Operations - The following operators work on the binary representation of the values & AND | OR ^ XOR ~ NOT (complement) >> right shift << left shift

Perl | Operators - These operators are used to perform the bitwise operation. It will first convert the number into bits and perform the bit-level

Avoid (unwanted) bitwise operators - or, if you are using perl 5.10 or newer then the correct way is Actually I think there are very few applications where bitwise operators are needed. It might be

perl operators cheat sheet

Perl Cheat Sheet - Perl Cheat Sheet. Functions. Get information Operators and Loops. Assign value. $x = 1 Test for a match: See Matching cheat sheet. Loops foreach my $i ( 1

Perl cheat sheet Datatypes & variables Operators Flow control - Perl cheat sheet. Brian McGill - Jan 9, 2000. Datatypes & variables. 3 data types: $scalar (may be float number or string). @array. %hash access arrays: @var

Perl Cheat Sheet: a handy reference - Perl Cheat Sheet: a handy reference. Getting Help: PerlDoc: perlreftut, perlref, perldsc, perllol,perldata binary operators with strings, eg. print "wxyz" ^ " ","\n";.

Perl For Dummies Cheat Sheet - Perl offers the standard programming tools — comparison operators, pattern- matching quantifiers, list functions — and has shortcuts for inputting character

perlcheat - Perl 5 Cheat Sheet - This 'cheat sheet' is a handy reference, meant for beginning Perl programmers. SYNTAX. OPERATOR PRECEDENCE foreach (LIST) { } for (a;b;c) { }.

perlcheat - perlcheat. NAME; DESCRIPTION. The sheet. ACKNOWLEDGEMENTS list of refs; SYNTAX; OPERATOR PRECEDENCE foreach (LIST) { } for (a;b;c) { }

Perl Reference Card - This is version 2 of the perl reference card. (cl) 2008 Michael Information taken liberally from the perl documentation and various other sources. You may freely

Perl 5 Regex Cheat sheet - When learning regexes, or when you need to use a feature you have not used yet or don't use often, it can be quite useful to have a place for quick look-up.

Perl Cheat Sheet - Perl 5 cheat sheet v8 by Juerd Waalboer, http://juerd.nl/ CONTEXTS SIGILS vs STRINGS LINKS OPERATOR PRECEDENCE = = perl.plover.com -> +

Perl 5 Quick Reference Guide - Quick Reference Guide. Johan Vromans. Squirrel Consultancy. Perl. 5 004 .. Perl operators have the following associativity and precedence, listed from

put quotes around text r

add quotation mark to a vector in R - You can try as.character(quote(c(lemon, orange, apple)))[-1]. Or another option as suggested by @MrFlick in the comments

[R] how to insert a double quote with the paste function? - Hupe at curie.fr] Sent: 11 September 2003 08:55 To: 'r-help at stat.math.ethz.ch' Subject: [R] how to insert a double quote with the paste

sQuote - Quote Text. Description. Single or double quote text by combining with appropriate single or double left and right quotation marks. Usage. sQuote(x, q = getOption("useFancyQuotes")) dQuote(x, q = getOption("useFancyQuotes")) Arguments. x. Details. Value. References. See Also. Examples.

Handling Text in R - Observe in the last example that R prints the embedded double quotes by preceding them Whatever you put in there will be inserted between strings, and then

Quoting in R - Another place implicit quoting shows up is with R 's "combine" operator where one can write either of the following. The wrapr package brings in a new function: qc() or "quoting c() " that gives a very powerful and convenient way to elide quotes. Notice quotes are not required on either side of the name assignment.

Quotes - Here is an example of Quotes: Let's get started by entering some strings in R.

Package 'eply' - Single or double quote text by combining with appropriate single or double left to provide a simple means of markup for quoting text to be used in the R output,

Handling Strings with R - R topics documented: The eply package provides ways to call eval(parse(text. = . Put quotes around each element of a character vector.

Feature request, quote multiple elements quickly. · Issue #1628 - You express character strings by surrounding text within double quotes: When writing strings, you can insert single quotes in a string with double quotes, and

perl dot operator

Perl - There are actually five dot operators in Perl. If the people on my training courses are any guide, most Perl programmers can only name two or

Dots and Perl - The Dot(.) sign is used instead of (+) sign in Perl. This operator takes two scalars variables as operands and combines them in a single scalar variable. Both scalars i.e left and right will convert into a single string.

The String Operators (. and x) - Perl has two different string operators-the concatenation (.) operator and the repetition (x) operator. These operators make it easy to manipulate strings in certain

arrays and dot operator - @array = 5..9; # this section works as expected print @array; # 56789 print "\n"; $ fred = pop(@array); print $fred; # 9 print "\n"; print @array;

Perl Operators - Perl also has a few other operators such as the following: The Dot Operator (.) This allows you to concatenate two strings together into one

String operators: concatenation (.), repetition (x) - In addition to the numerical operators Perl has two operators specially used for strings. One of them is . for concatenation, and the other is x (the lower-case X)

Perl three dot operator examples - the .. operator will process the end in the first line as soon as it reads it and will only print some text . The operator will not process the end on

Perl Range Operator (.. and ) - In a list context, this operator is easy to use and understand. It is much more 2005/06/12 Perl Range Operator (.. and ) But with the three dot version:

Perl string concatenation - Another way to concatenate Perl strings is to use the "dot" operator (i.e., the decimal character). In some circumstances it can make your Perl

perlop - Operator precedence and associativity work in Perl more or less like they do in the right operand until the next evaluation, as in sed, just use three dots ( ".