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Python matplotlib multiple bars

...ates import date2num import datetime x = [ datetime.datetime(2011, 1, 4, 0, 0), datetime.datetime(2011, 1, 5, 0, 0), datetime.datetime(2011, 1, 6, 0, 0) ] x = date2num(x) y = [4, 9, 2] z = [1, 2, 3] k = [11, 12, 13] ax = plt.subplot(111) ax.bar(x-0.2, y, width=0.2, color='b', align='c...
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What is the purpose of Looper and how to use it?

... 401 What is Looper? Looper is a class which is used to execute the Messages(Runnables) in a queue...
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How can I get the current network interface throughput statistics on Linux/UNIX? [closed]

... answered Feb 27 '09 at 20:45 Mehrdad AfshariMehrdad Afshari 379k8383 gold badges822822 silver badges775775 bronze badges ...
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Pandas - How to flatten a hierarchical index in columns

... 496 I think the easiest way to do this would be to set the columns to the top level: df.columns =...
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LINQ Aggregate algorithm explained

... carries forward. etc. Example 1. Summing numbers var nums = new[]{1,2,3,4}; var sum = nums.Aggregate( (a,b) => a + b); Console.WriteLine(sum); // output: 10 (1+2+3+4) This adds 1 and 2 to make 3. Then adds 3 (result of previous) and 3 (next element in sequence) to make 6. Then adds 6 and 4 t...
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What is an Android PendingIntent?

... 904 A PendingIntent is a token that you give to a foreign application (e.g. NotificationManager, Ala...
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Remove all multiple spaces in Javascript and replace with single space [duplicate]

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How do you convert a byte array to a hexadecimal string, and vice versa?

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Environment variables for java installation

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Frame Buster Buster … buster code needed

..." create a setInterval method that tries to break the frame. If after 3 or 4 tries your page still isn't the top page - create a div element that covers the whole page (modal box) with a message and a link like... You are viewing this page in a unauthorized frame window - (Blah blah... potential se...