... Thank you. I think this is somehow annoying with R: Why is it so difficult to change the column name if you do not want to use the index number but the old name :( – Arne Mar 18 '14 at 14:41 ...

...p. Second, it might be a typo, but you have your loop a little messed up. If you really did want to use append, it would be: words.append(word) not word.append(words) share | improve this ans...

...oing everything by hand henceforth. Qt4 Qt4 has improved on Designer significantly. No longer does it only generate code, but you can dynamically load in your Designer files (in xml) and dynamically connect them to the running objects in your program -- no generated code however, you do have to na...

...oss-cutting concerns, which would be any kind of code that is repeated in different methods and can't normally be completely refactored into its own module, like with logging or verification. So, with AOP you can leave that stuff out of the main code and define it vertically like so: function mainP...

What is the difference between Service, Async Task & Thread. If i am not wrong all of them are used to do some stuff in background. So, how to decide which to use and when? ...

... PS...if you want the checkbox to be in the checked state you need to add checked="checked", not mess with the javascript. The javascript is just there to force mouse clicks to be ignored on the input object, not to set state of th...

...ecause it's a subclass of Vector. Oh, and also Stack has no interface, so if you know you need Stack operations you end up committing to a specific concrete class, which isn't usually a good idea. Also as pointed out in the comments, Stack and Deque have reverse iteration orders: Stack<Integer...

...d Way (because it's a plumbing command; meant to be programmatic): $ git diff-tree --no-commit-id --name-only -r bd61ad98 index.html javascript/application.js javascript/ie6.js Another Way (less preferred for scripts, because it's a porcelain command; meant to be user-facing) $ git show --pretty...

... There is a special identifier that one can use in a formula to mean all the variables, it is the . identifier. y <- c(1,4,6) d <- data.frame(y = y, x1 = c(4,-1,3), x2 = c(3,9,8), x3 = c(4,-4,-2)) mod <- lm(y ~ ., data = d) You can also d...

...tead of using unix sockets, you use TCP connections. From django docs: If you’re using PostgreSQL, by default (empty HOST), the connection to the database is done through UNIX domain sockets (‘local’ lines in pg_hba.conf). If you want to connect through TCP sockets, set HOST to ‘lo...