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Assign pandas dataframe column dtypes
...st construct a numpy record array with your desired types, fill it out and then pass it to a DataFrame constructor.
import pandas as pd
import numpy as np
x = np.empty((10,), dtype=[('x', np.uint8), ('y', np.float64)])
df = pd.DataFrame(x)
df.dtypes ->
x uint8
y float64
...
Android Preferences: How to load the default values when the user hasn't used the preferences-screen
... This does not work if using a boolean and defaulting to "false" as then the default entry will not be created in Android 2.x. A call to ".getBoolean(KEY, true)" will always return true. For Android 4.x it works.
– Gunnar Bernstein
Dec 3 '13 at 20:05
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Create a Date with a set timezone without using a string representation
...h and year. If I use the JavaScript Date constructor that takes numbers, then I get a Date object for my current timezone:
...
What is the difference between “screen” and “only screen” in media queries?
...if you use the Mobile First approach? So, we have the mobile css first and then use min-width to target larger sites. We shouldn't use the only keyword in that context, right?
– Ashitaka
Aug 3 '12 at 15:55
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How can I add “href” attribute to a link dynamically using JavaScript?
... last comment. I don't understand your point about properties failing, and then mentioning tagName. Are you talking about custom attributes?
– Tim Down
Jan 14 '11 at 10:35
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Is C++14 adding new keywords to C++?
...l namespace of every translation unit. (Yeah, you can ask why that is, and then well...)
– R. Martinho Fernandes
Aug 19 '14 at 10:11
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Use C++ with Cocoa Instead of Objective-C?
... about Objective-C++ in the Objective-C language guide. The view layer can then be pure Objective-C.
The second option is to use a cross-platform C++ toolkit. The Qt toolkit might fit the bill. Cross-platform toolkits are generally despised by Mac users because they do not get all the look and feel...
Selector on background color of TextView
...ry where it would make more sense since it's not a color selector per se.
Then you would have to create the res/drawable/selected_state.xml file like this:
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangl...
How do you make a web application in Clojure? [closed]
...ess you want it, which won't be often). Go look at the README at that URL, then download a snapshot and start playing.
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Logback to log different messages to two files
...lt;appender-ref ref="FILE"/>
</root>
</configuration>
Then you'd setup two separate loggers, one for everything and one to log analytics data like so:
Logger analytics = LoggerFactory.getLogger("analytics");
...