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Add st, nd, rd and th (ordinal) suffix to a number
...he expression ((n + 90) % 100 - 10) % 10 - 1 does the mapping. Breaking it down:
(n + 90) % 100: This expression takes the input integer − 10 mod 100, mapping 10 to 0, ... 99 to 89, 0 to 90, ..., 9 to 99. Now the integers ending in 11, 12, 13 are at the lower end (mapped to 1, 2, 3).
- 10: Now 1...
Why are elementwise additions much faster in separate loops than in a combined loop?
... 2:
Here, as the data sizes increase, the amount of relative overhead goes down and the performance "saturates". Here two loops is slower because it has twice as much loop and branching overhead.
I'm not sure exactly what's going on here... Alignment could still play an effect as Agner Fog mentions ...
How do I ignore all files in a folder with a Git repository in Sourcetree?
...rything underneath" and select the folder you want to ignore from the drop-down list. This will create a .gitignore file in your root directory and put the folder specification in it.
If you do have a .gitignore folder already in your root folder, you could follow the same approach above, or you...
How dangerous is it to access an array out of bounds?
...ram can consume excessive resources (CPU, memory, disk), possibly bringing down the entire system. A lot of malware (viruses, etc.) exploits buffer overruns to gain unauthorized access to the system.
(One historical example: I've heard that on some old systems with core memory, repeatedly accessing...
How do I compare two strings in Perl?
...ot ""
(subs with a "" prototype are dealt with by the 'Code()' entry lower down)
* − that is, each element matches the element of same index in the other
array. If a circular reference is found, we fall back to referential
equality.
! − either a real number, or a string that looks like a nu...
Understanding implicit in Scala
...s points out, beautifully obfuscated code. It can be a real pain to track down where an implicit is coming from and they can actually make the code harder to read and maintain if you aren't careful.
– melston
Mar 19 '19 at 19:27
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Received an invalid column length from the bcp client for colid 6
... with the colid message are worthless. It's not the column when you count down from the top of the mapping or anything like that. If I were microsoft, I'd be embarrased to give an error message that looks like it's pointing at the problem column when it isn't. I found the problem colid by making a...
How to access the last value in a vector?
...
This basically boils down to x[[length(x)]] again.
– Rich Scriven
Jun 7 '16 at 18:53
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Regular vs Context Free Grammars
...ges, what it says, essentially, is that any regular language can be broken down into three pieces, x, y, and z, where all instances of the language are in xy*z (where * is Kleene repetition, ie, 0 or more copies of y.) You basically have one "nonterminal" that can be expanded.
Now, what about cont...
How to use a variable to specify column name in ggplot
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Just adding a note to point people down to Moody_Mudskipper's answer with updates for ggplot2 version 3.0.0
– Gregor Thomas
Apr 4 '19 at 15:31
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