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pandas GroupBy columns with NaN (missing) values
...s far result in potentially dangerous behavior as it is quite possible you select a dummy value that is actually part of the dataset. This is increasingly likely as you create groups with many attributes. Simply put, the approach doesn't always generalize well.
A less hacky solve is to use pd.drop_...
How to allow download of .json file with ASP.NET
...you need to add json file extension type in MIME Types
Method 1
Go to IIS, Select your application and Find MIME Types
Click on Add from Right panel
File Name Extension = .json
MIME Type = application/json
After adding .json file type in MIME Types, Restart IIS and try to access json file
Method ...
Emulator error: This AVD's configuration is missing a kernel file
...
Open AVD Manager in Administrator mode
Select VM and click edit, click OK
Start VM.
Editor's note: By administrator mode, he meant Right-click > Run as administrator on windows platforms .
...
How to use pull to refresh in Swift?
...ring(string: "Pull to refresh")
refreshControl.addTarget(self, action: #selector(self.refresh(_:)), for: .valueChanged)
tableView.addSubview(refreshControl) // not required when using UITableViewController
}
@objc func refresh(_ sender: AnyObject) {
// Code to refresh table view
}
At s...
Check if UIColor is dark or bright?
I need to determine whether a selected UIColor (picked by the user) is dark or bright, so I can change the color of a line of text that sits on top of that color, for better readability.
...
How can I exclude directories from grep -R?
...n regarding syntax and usage see
The GNU man page for File and Directory Selection
A related StackOverflow answer Use grep --exclude/--include syntax to not grep through certain files
For older GNU Greps and POSIX Grep, use find as suggested in other answers.
Or just use ack (Edit: or The Silve...
Deleting rows with MySQL LEFT JOIN
...
DELETE FROM deadline where ID IN (
SELECT d.ID FROM `deadline` d LEFT JOIN `job` ON deadline.job_id = job.job_id WHERE `status` = 'szamlazva' OR `status` = 'szamlazhato' OR `status` = 'fizetve' OR `status` = 'szallitva' OR `status` = 'storno');
I am not sur...
Getting full JS autocompletion under Sublime Text
...
I'm surprised you get the selectedIndex attribute, as createTag will return an img HTTP tag. Plus, selectedIndex belongs to a select HTTP tag, NOT to img or its parent element. Would you be so kind of commenting about how do you get those two suggesti...
LINQ Single vs First
...if it finds more than one record matching the criteria.
First will always select the first record from the list. If the query returns just 1 record, you can go with First().
Both will throw an InvalidOperationException exception if the collection is empty.
Alternatively you can use SingleOrDefau...
No output to console from a WPF application?
... ... and of course, the next step is to open the file in notepad++ and select 'View -> Monitoring (tail -f)' to watch it update in real time
– mcalex
Sep 15 at 7:05
add...