break

How to remove all line breaks (enter symbols) from the string using R? I've tried gsub("\n", "", my_string) , but it doesn't work, because new line and line break aren't equal. Thank you! You need to strip \r and \n to remove carriage returns and new lines. x <- "foo\nbar\rbaz\r\nquux" gsub("[\r\n]", "", x) ## [1] "foobarbazquux" Or library(stringr) str_replace_all(x, "[\r\n]" , "") ## [1] "foobarbazquux" I just wanted to note here that if you want to insert spaces where you found newlines the best option is to use the following: gsub("\r?\n|\r", " ", x) which will insert only one space

This question already has an answer here: Why do I need to use break? 5 answers When I create a switch statement in VS2008 C# like this (contrived): switch (state) { case '1': state = '2'; case '2': state = '1'; } it complains that I'm not allowed to drop through: Control cannot fall through from one case label ('case '1' (0x31):') to another If you're not allowed to drop through, then what is the purpose of the break statement at all? Why didn't the language designers just leave it out and automatically jump to the end of the switch statement instead of forcing us to put in an unnecessary

I want to jump from the middle of a switch statement, to the loop statement in the following code: while (something = get_something()) { switch (something) { case A: case B: break; default: // get another something and try again continue; } // do something for a handled something do_something(); } Is this a valid way to use continue ? Are continue statements ignored by switch statements? Do C and C++ differ on their behaviour here? visitor It's fine, the continue statement relates to the enclosing loop, and your code should be equivalent to (avoiding such jump statements): while (something =

I am trying to make a function that has an if/elif statement in it, and I want the if to break a while loop.. The function is for a text adventure game, and is a yes/no question. Here is what i have come up with so far.. def yn(x, f, g): if (x) == 'y': print (f) break elif (x) == 'n' print (g) name = raw_input('What is your name, adventurer? ') print 'Nice to meet you, '+name+'. Are you ready for your adventure?' while True: ready = raw_input('y/n ') yn(ready, 'Good, let\'s start our adventure!', 'That is a real shame.. Maybe next time') Now I'm not sure if I am using the function right, but

Currently having trouble with breaking this for loop. I want to break it if the variable is not found in this list so it can move two another for loop. It expects an indented block for the top of the for loop, but if I change the position of the break or of the start of the for loop, it doesn't work. Help! while cyclenumb <= 10000: for x in userpassword[k]: for z in lowercaselist: if x in z: newpasswordlist.append(z) k +=1 break else: for x in userpassword[k]: for z in uppercaselist: if x in z: newpasswordlist.append(z) k +=1 break else: You'll need to break out of each loop separately, as

I have a set of data in which I need to code values of certain variables (numeric) into 3 classes. My data set is similar to this but has 60 more variables: anim <- c(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15) wt <- c(181,179,180.5,201,201.5,245,246.4,189.3,301,354,369,205,199,394,231.3) data <- data.frame(anim,wt) > data anim wt 1 1 181.0 2 2 179.0 3 3 180.5 4 4 201.0 5 5 201.5 6 6 245.0 7 7 246.4 8 8 189.3 9 9 301.0 10 10 354.0 11 11 369.0 12 12 205.0 13 13 199.0 14 14 394.0 15 15 231.3 I need to code values of the variable "wt" up into 3 classes: (wt >= 179 & wt < 200) = 1; (wt >= 200 & wt < 300)

I have a box with a width of 118px which contains an email address. I use word-wrap: break-word; to wrap the addresses better. But on a special kind of addresses this makes it worse. big.ass.email@addre ss- is.extremely.lame.de Because of word-wrap: break-word; it breaks after "addre" but ceause the rest of the address doesn't fit in one line it breaks again at a "prefered breakpoint" which happens to be the "-". In desired behaviour the second break in the email address would not be after "-" but after "extremely". I fear that's not possible with just CSS. Isn't it? Here you can see a small

1.break 是用来 终止循环 或者退出 switch语句 ，让循环不再继续。 使用范围： 循环语句 、 switch语句 中。 例： for(var i=0;i<7;i++){ if(i==5){ break; } document.write(i+" "); } //当i=5时终止循环，输出结果为 0 1 2 3 4 2.continue 跳出当前循环进行下一个循环 使用范围： while语句 、 do/while语句 、 for语句 、或者 for/in 语句的循环体内。 例： //for循环 for(var i=0;i<7;i++){ if(i==5){ continue; } document.write(i+" "); } //输出结果为 0 1 2 3 4 6 //while循环 var i=0; while(i<7){ i++; if(i==5){ continue; } document.write(i+" "); } //输出的结果为 1 2 3 4 6 7 3.return 就是用于指定函数返回的值，常见的就是在函数里判断参数是否符合要求， 如果不符合要求就不再继续往下执行。 使用范围：函数体内。（如果出现在for循环或者while循环中或报错）。 例： function myFnuction(a,b){ if(a*b>10){ return alert(