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What is the difference between call and apply?
...u to list the arguments. A technique I used to remember it is if the first letter of the method starts with a then it takes an array i.e a pply array
– aziz punjani
Oct 6 '13 at 20:43
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Creating an abstract class in Objective-C
... but it expands to [Universe universe].thing. Big fun, saving thousands of letters of code...
– Dan Rosenstark
Jul 21 '11 at 13:41
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How to assign from a function which returns more than one value?
... assign the names to the original vector if you would rather reference the letter than the index:
> names(r) <- c("a","b")
> names(r)
[1] "a" "b"
> r["a"]
a
1
[Edit] Given that you will be applying min and max to each vector separately, I would suggest either using a matrix (if a an...
Which MIME type to use for a binary file that's specific to my program?
...o make your file type especially organised, it might be worth adding a few letters in the first few bytes of the file, for example, every JPG has this at it's file start:
if you can afford a jump of 4 or 8 bytes it could be very helpful for you in the rest of the way
:)
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Storing Images in DB - Yea or Nay?
...many databases beat many files systems, even when we're only talking about raw speed.
The correct course of action is to make the right decision for your precise scenario, and to do that, you'll need some numbers and some use case estimates.
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Purpose of Trigraph sequences in C++?
... European national ISO-646 character sets, these positions are occupied by letters not found in the English alphabet.
A set of trigraphs is provided to allow national characters to be expressed in a portable way using a truly standard minimal character set. This can be useful for interchange of...
Missing Push Notification Entitlement
...entitlements file you made, right click in the empty file and select "Show Raw Keys/Values"
Add a new entry to the entitlements file called "aps-environment" and set it's value to "production"
One key note, if you were previously using the keychain-access-groups entitlement, you'll want to add that ...
Batch file: Find if substring is in string (not in a file)
... every possible iteration you may want to match.
( What a pain! At only 3 letters that means 9 different tests in order to accomplish the check! )
In addition, many times it is preferable to match command output, a variable in a loop, or the value of a pointer variable in your batch/CMD which is n...
Test if characters are in a string
...h in a bunch of shorter strings: vec <- replicate(100000, paste( sample(letters, 10, replace=TRUE), collapse='') ).
– Greg Snow
Apr 12 '12 at 19:52
2
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Fastest way(s) to move the cursor on a terminal command line?
...e end of the line.
Meta-f Move forward a word, where a word is composed of letters and digits.
Meta-b Move backward a word.
Ctrl-l Clear the screen, reprinting the current line at the top.
Kill and yank
Ctrl-k Kill the text from the current cursor position to the end of the line.
M-d Kill from ...