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Returning multiple objects in an R function [duplicate]
...which has some private variables and encapsulates, maybe, height , age , etc.
6 Answers
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Replacing all non-alphanumeric characters with empty strings
...e second one doesn't answer the question. What about characters like : / \ etc?
– WW.
Dec 29 '14 at 4:03
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Do you need to use path.join in node.js?
...the given pathes come from unknown sources (eg. user input, 3rd party APIs etc.).
So path.join('a/','b') path.join('a/','/b'), path.join('a','b') and path.join('a','/b') will all give a/b.
Without using it, you usually would make expectations about the start and end of the pathes joined, knowing...
How to get first 5 characters from string [duplicate]
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For single-byte strings (e.g. US-ASCII, ISO 8859 family, etc.) use substr and for multi-byte strings (e.g. UTF-8, UTF-16, etc.) use mb_substr:
// singlebyte strings
$result = substr($myStr, 0, 5);
// multibyte strings
$result = mb_substr($myStr, 0, 5);
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List of macOS text editors and code editors [closed]
...ndons each version. (Version 5 for Mountain Lion, Version 6 for Mavericks, etc). You have to rebuy each version.
– terphi
Apr 9 '14 at 19:49
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Getting only Month and Year from SQL DATE
... want the result to be a date
- But you want to 'discard' the Days, Hours, etc
- Leaving a year/month only date field
SELECT
DATEADD(MONTH, DATEDIFF(MONTH, 0, <dateField>), 0) AS [year_month_date_field]
FROM
<your_table>
This gets the number of whole months from a base date (0...
How to enable cURL in PHP / XAMPP
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On Debian with Apache 2:
apt-get install php5-curl
/etc/init.d/apache2 restart
(php4-curl if it's php4)
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Can someone give an example of cosine similarity, in a very simple, graphical way?
...to a document citing Paris and London three times each, but not Amsterdam, etc. As said, we can try and imagine the this fancy space for 10 or 100 cities. It's hard to draw, but easy to conceptualize.
I'll wrap up just by saying a few words about the formula itself. As I've said, other references p...
vim line numbers - how to have them on by default?
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Terminal > su > password > vim /etc/vimrc
Click here and edit as in line number (13):
set nu
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Formatting a number with leading zeros in PHP [duplicate]
...thing which expects a positive double digit number (Bank Account sort code etc). Please correct me if I'm wrong, but as far as I know, there is no real life instance of requiring a leading zero on a negative value?
– guyver4mk
Mar 14 '16 at 9:24
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