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How to convert a table to a data frame
...trix(mytable) will reveal that tables really are just dressed up matrices, and as.data.frame.matrix is the method that gets dispatched when as.data.frame() is passed a matrix argument.)
– Josh O'Brien
May 25 '12 at 17:59
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How to import existing *.sql files in PostgreSQL 8.4?
I am using PostgreSQL 8.4, and I have some *.sql files to import into a database. How can I do so?
5 Answers
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What does “=>” mean in PHP?
...the context of that foreach loop, it assigns the key of the array to $user and the value to $pass.
Example:
$user_list = array(
'dave' => 'apassword',
'steve' => 'secr3t'
);
foreach ($user_list as $user => $pass) {
echo "{$user}'s pass is: {$pass}\n";
}
// Prints:
// "dave's...
How do I concatenate two text files in PowerShell?
I am trying to replicate the functionality of the cat command in Unix.
11 Answers
11...
How do you uninstall all dependencies listed in package.json (NPM)?
If I have a package.json file defined in my application root and run npm install -g it will install all the dependencies defined in package.json, globablly.
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How can I check whether Google Maps is fully loaded?
...d to load). I found it to be more reliable then tilesloaded/bounds_changed and using addListenerOnce method the code in the closure is executed the first time "idle" is fired and then the event is detached.
See also the events section in the Google Maps Reference.
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How do you merge two Git repositories?
... rewriting the history as described in other answers.
The git-subtree command is a part of official git-contrib, some packet managers install it by default (OS X Homebrew).
But you might have to install it by yourself in addition to git.
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How to show and update echo on same line
...hat could do this if I added a 3rd escape character.
The 2 options are -n and -e.
-n will not output the trailing newline. So that saves me from going to a new line each time I echo something.
-e will allow me to interpret backslash escape symbols.
Guess what escape symbol I want to use for this...
Escape quotes in JavaScript
...nary Assessment \"Mini\"'); return false;">edit</a> I tried that, and it is still screwing up. This has got to be a simple WTF but for the life of me, I can't see it.
– Matt Dawdy
Jan 5 '10 at 4:35
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[ :Unexpected operator in shell programming [duplicate]
...et of sh syntax - the /bin/sh executable on your system may provide only standard sh functionality, in which []-style tests are not included.
– Tim
Aug 5 '10 at 1:17
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