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Naming returned columns in Pandas aggregate function? [duplicate]
...er, this does not work with lambda functions, since they are anonymous and all return <lambda>, which causes a name collision:
>>> df.groupby('A').agg({'B': [lambda x: x.min(), lambda x: x.max]})
SpecificationError: Function names must be unique, found multiple named <lambda>
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UIRefreshControl without UITableViewController
...ng a UIRefreshControl instance as a subview to my UITableView. And it magically just works!
UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init];
[refreshControl addTarget:self action:@selector(handleRefresh:) forControlEvents:UIControlEventValueChanged];
[self.myTableView addSubview:...
What is makeinfo, and how do I get it?
...n a number of formats, both online and printed (dvi, html, info, pdf, xml, etc.)".
To sum up: Texinfo is a documentation source file format and makeinfo is the program that turns source files in Texinfo format into the desired output.
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How to save an HTML5 Canvas as an image on a server?
I'm working on a generative art project where I would like to allow users to save the resulting images from an algorithm. The general idea is:
...
How do you pass multiple enum values in C#?
...s. If you do not take care of defining the values as, for example, 1,2,4,8 etc, you will have problems.
– Denis Troller
Jun 23 '09 at 0:54
1
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How to get Visual Studio 'Publish' functionality to include files from post build event?
...ss that collects the files for packaging. The target we need to extend is called CopyAllFilesToSingleFolder. This target has a dependency property, PipelinePreDeployCopyAllFilesToOneFolderDependsOn, that we can tap into and inject our own target. So we will create a target named CustomCollectFiles a...
Linux: compute a single hash for a given folder & contents?
...id concerns notwithstanding, if you care about file contents, permissions, etc. but not modification time, you can add the --mtime option like so: tar -c /path/to/folder --mtime="1970-01-01" | sha1sum.
– Binary Phile
Dec 17 '15 at 19:44
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ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
We have an application running locally where we're experiencing the following error:
25 Answers
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MySQL query String contains
...
Quite simple actually:
mysql_query("
SELECT *
FROM `table`
WHERE `column` LIKE '%{$needle}%'
");
The % is a wildcard for any characters set (none, one or many). Do note that this can get slow on very large datasets so if your database grow...
Can I query MongoDB ObjectId by date?
...Seconds + "0000000000000000");
return constructedObjectId
}
/* Find all documents created after midnight on May 25th, 1980 */
db.mycollection.find({ _id: { $gt: objectIdWithTimestamp('1980/05/25') } });
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