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Reading a simple text file

... This is how I do it: public static String readFromAssets(Context context, String filename) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(context.getAssets().open(filename))); // do reading, usually loop until end of file r...
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How to plot two columns of a pandas data frame using points?

I have a pandas data frame and would like to plot values from one column versus the values from another column. Fortunately, there is plot method associated with the data-frames that seems to do what I need: ...
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Transpose list of lists

...in args is a separate positional argument of f. Coming back to the input from the question l = [[1, 2, 3], [4, 5, 6], [7, 8, 9]], zip(*l) would be equivalent to zip([1, 2, 3], [4, 5, 6], [7, 8, 9]). The rest is just making sure the result is a list of lists instead of a list of tuples. ...
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How to copy a file to a remote server in Python using SCP or SSH?

... first if you're not using a with block), so you know it's flushed to disk from Python. You need to generate (on the source machine) and install (on the destination machine) an ssh key beforehand so that the scp automatically gets authenticated with your public ssh key (in other words, so your scri...
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Junit: splitting integration test and Unit tests

I've inherited a load of Junit test, but these tests (apart from most not working) are a mixture of actual unit test and integration tests (requiring external systems, db etc). ...
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How can I use grep to find a word inside a folder?

...led just "files" in Windows). grep -nr string reads the content to search from the standard input, that is why it just waits there for input from you, and stops doing so when you press ^C (it would stop on ^D as well, which is the key combination for end-of-file). ...
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Do I really have a car in my garage? [duplicate]

...e a base class stands fine on it's own, but you might also want to inherit from it. Continuing with the Vehicle example, you may have a Boat in your garage that has all the information you need to operate your boat. But your neighbor may have a SkiBoat, which might also have a method for the lengt...
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Call apply-like function on each row of dataframe with multiple arguments from each row

...nction on the row, and the input of the function is using multiple columns from that row. For example, let's say I have this data and this testFunc which accepts two args: ...
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What do the return values of node.js process.memoryUsage() stand for?

From the official documentation ( source ): 4 Answers 4 ...
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Vertically align an image inside a div with responsive height

...idth:height = 16:9 */ } Here is the Online Demo. Comment out the lines from the bottom and resize the panel to see the effect. Also, we could apply the padding property to a dummy child or :before/:after pseudo-element to achieve the same result. But note that in this case, the percentage value...