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What is the most efficient way to loop through dataframes with pandas? [duplicate]

... This is great; thanks Richard. It is still relevant with Python 3.7+. From 286 seconds with iterrows to 3.62 with zip. Thanks – pacta_sunt_servanda May 16 '19 at 12:48 ad...
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ExpandableListView - hide indicator for groups with no children

... Based on StrayPointer's answer and the code from the blog, you can simplify the code even more: In your xml add the folowing to ExpandableListView: android:groupIndicator="@android:color/transparent" Then in the Adapter you do the following: @Override protected vo...
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Get string character by index - Java

...formation on the Character class and the toString method, I pulled my info from the documentation on Character.toString. share | improve this answer | follow |...
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how do I initialize a float to its max/min value?

...reach an extreme. To find the smallest non-zero value, we can subtract one from each for the comparison. Any zero values will "wrap around" to the largest possible value for the type, but the relationship between other values will be retained. After we're done, we obviously add one back to the value...
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Using socket.io in Express 4 and express-generator's /bin/www

...here In this way all socket.io related code in one module and function from it I can invoke from anywhere in application. share | improve this answer | follow ...
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Android Fragment handle back button press [duplicate]

... Handling OnKey from View does not work – skayred Nov 3 '11 at 9:41 14 ...
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How do SO_REUSEADDR and SO_REUSEPORT differ?

...he system will have to choose a specific port itself in that case (usually from a predefined, OS specific range of source ports). A similar wildcard exists for the source address, which can be "any address" (0.0.0.0 in case of IPv4 and :: in case of IPv6). Unlike in case of ports, a socket can reall...
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Unable to install Maven on Windows: “JAVA_HOME is set to an invalid directory”

... the home directory for your Java installation. If you are executing Java from "E:\Sun\SDK\jdk\bin", then the JAVA_HOME variable needs to point to "E:\Sun\SDK\jdk". NB: JAVA_HOME should NOT end with "\bin"1. Make sure that you haven't put a semicolon in the JAVA_HOME variable2. NB: JAVA_HOME shoul...
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Can I target all tags with a single selector?

... For those landing here from google, and wondering what a comma-separated list means in CSS, it's the first example OP gave. That is, h1, h2, h3 {}. – bluesmonk May 29 '19 at 17:47 ...
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What are the Web.Debug.config and Web.Release.Config files for?

... These are Web.config transformations files. From ASP.NET Web Deployment using Visual Studio: Web.config File Transformations: There are two ways to automate the process of changing Web.config file settings: Web.config transformations and Web Deploy parameters. A We...