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Naming returned columns in Pandas aggregate function? [duplicate]
...taframe, there are two levels of thecolumn name:
shop_id item_id date_block_num item_cnt_day
target
0 0 30 1 31
we can use this code：
df.columns = [col[0] if col[-1]=='' else col[-1] for col i...
When should one use HTML entities?
... entities.
Some libraries do not play along nice with utf-8. For instance, PHP in some Linux distributions dropped full support for utf-8 in their regular expression libraries.
It is harder to limit the number of characters in a text that uses html entities, because a single entity uses many charact...
Copy/duplicate database without using mysqldump
...
In PHP:
function cloneDatabase($dbName, $newDbName){
global $admin;
$db_check = @mysql_select_db ( $dbName );
$getTables = $admin->query("SHOW TABLES");
$tables = array();
while($row = mysql_fetch...
switch / pattern matching idea
...well.
Abstracting common statement patterns. Complicated try/catch/finally blocks or other involved (often heavily generic) code blocks. Extending LINQ-to-SQL fits in here too.
Tuples, to some extent.
** But do note: The lack of automatic generalization and type inference really hinder the use of...
How to amend several commits in Git to change author
...on https://web.archive.org/web/20100213104931/http://blog.madism.org/index.php/2007/09/09/138-git-awsome-ness-git-rebase-interactive
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How does Facebook disable the browser's integrated Developer Tools?
...ited by people to post spam and even used to "hack" accounts. Facebook has blocked the developer tools, and I can't even use the console.
...
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
...authentication_string" Here you can read more about it: bugs.mysql.com/bug.php?id=76655
– IberoMedia
Feb 4 '18 at 17:05
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show 4 more commen...
Flex-box: Align last row to grid
...nking how I will get rid of all these hacks intended to align those inline-blocks inside a grid, and now it turns out that it is simply not possible! I have hit that block right away, reaching the limits which I thought I would hardly ever reach happily solving all these old unsolvable CSS problems....
Keep overflow div scrolled to bottom unless user scrolls up
...
@NathanArthur u da real mvp
– php_nub_qq
Nov 11 '17 at 17:10
14
@NathanArt...
Send email with PHPMailer - embed image in body
I'm trying to send HTML mail, with PHPMailer, with images.
The body is loaded from a html file, that contains all the info.
...