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append to url and refresh page

... 166 this should work (not tested!) var url = window.location.href; if (url.indexOf('?') > ...
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Convert columns to string in Pandas

...will convert keys to valid json (and therefore your keys to strings): In [11]: df = pd.DataFrame([['A', 2], ['A', 4], ['B', 6]]) In [12]: df.to_json() Out[12]: '{"0":{"0":"A","1":"A","2":"B"},"1":{"0":2,"1":4,"2":6}}' In [13]: df[0].to_json() Out[13]: '{"0":"A","1":"A","2":"B"}' Note: you can p...
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Is log(n!) = Θ(n·log(n))?

... Remember that log(n!) = log(1) + log(2) + ... + log(n-1) + log(n) You can get the upper bound by log(1) + log(2) + ... + log(n) <= log(n) + log(n) + ... + log(n) = n*log(n) And you can get the lower bound by doin...
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pandas DataFrame: replace nan values with average of columns

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Java SE 6 vs. JRE 1.6 vs. JDK 1.6 - What do these mean?

... see many different Java terms floating around. I need to install the JDK 1.6. It was my understanding that Java 6 == Java 1.6. However, when I install Java SE 6, I get a JVM that reports as version 11.0! Who can solve the madness? ...
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How To: Best way to draw table in console app (C#)

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Print a list in reverse order with range()?

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How to normalize an array in NumPy?

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How many double numbers are there between 0.0 and 1.0?

...or example, that's the number of distinct doubles between 0.5 included and 1.0 excluded, and exactly that many also lie between 1.0 included and 2.0 excluded, and so forth. Counting the doubles between 0.0 and 1.0 is harder than doing so between powers of two, because there are many powers of two i...
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What is the best way to convert an array to a hash in Ruby

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