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Why does i = i + i give me 0?

... 10 Answers 10 Active ...
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Plot two histograms on single chart with matplotlib

...umpy from matplotlib import pyplot x = [random.gauss(3,1) for _ in range(400)] y = [random.gauss(4,2) for _ in range(400)] bins = numpy.linspace(-10, 10, 100) pyplot.hist(x, bins, alpha=0.5, label='x') pyplot.hist(y, bins, alpha=0.5, label='y') pyplot.legend(loc='upper right') pyplot.show() ...
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How do I check in SQLite whether a table exists?

... 1045 I missed that FAQ entry. Anyway, for future reference, the complete query is: SELECT name FR...
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Python - Create a list with initial capacity

... def doAppend( size=10000 ): result = [] for i in range(size): message= "some unique object %d" % ( i, ) result.append(message) return result def doAllocate( size=10000 ): result=size*[None] for i in range(siz...
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How can I change the color of pagination dots of UIPageControl?

...y outdated, but it's still attracting votes and comments. Ever since iOS 6.0 you should be using the pageIndicatorTintColor and currentPageIndicatorTintColor properties on UIPageControl. ORIGINAL ANSWER: I ran into this problem today and decided to write my own simple replacement class. It's a s...
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How can I get the executing assembly version?

I am trying to get the executing assembly version in C# 3.0 using the following code: 6 Answers ...
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Compute a confidence interval from sample data

...y as np import scipy.stats def mean_confidence_interval(data, confidence=0.95): a = 1.0 * np.array(data) n = len(a) m, se = np.mean(a), scipy.stats.sem(a) h = se * scipy.stats.t.ppf((1 + confidence) / 2., n-1) return m, m-h, m+h you can calculate like this way. ...
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Detect Windows version in .net

...---+ | Windows 95 | Win32Windows | 4 | 0 | | Windows 98 | Win32Windows | 4 | 10 | | Windows Me | Win32Windows | 4 | 90 | | Windows NT 4.0 | Win32NT | 4 ...
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Single Line Nested For Loops

... Anthony Geoghegan 9,51244 gold badges4040 silver badges4848 bronze badges answered Jun 9 '13 at 5:26 Jeff TratnerJeff Tratner ...
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How to trim white spaces of array values in php

... | edited Sep 20 '19 at 8:55 Sebastian Viereck 3,7503333 silver badges4141 bronze badges answ...