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How to calculate cumulative normal distribution?

I am looking for a function in Numpy or Scipy (or any rigorous Python library) that will give me the cumulative normal distribution function in Python. ...
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Formatting a float to 2 decimal places

I am currently building a sales module for a clients website. So far I have got the sale price to calculate perfectly but where I have come stuck is formatting the output to 2 decimal places. ...
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Using grep to search for a string that has a dot in it

I am trying to search for a string 0.49 (with dot) using the command 9 Answers 9 ...
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How to append rows to an R data frame

I have looked around StackOverflow, but I cannot find a solution specific to my problem, which involves appending rows to an R data frame. ...
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WAMP 403 Forbidden message on Windows 7

I have installed WAMP version 2.1 on my windows 7 machine. When i browse to localhost in my browser, the WAMP server page is visible. ...
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Is std::vector so much slower than plain arrays?

I've always thought it's the general wisdom that std::vector is "implemented as an array," blah blah blah. Today I went down and tested it, and it seems to be not so: ...
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Convert a character digit to the corresponding integer in C

Is there a way to convert a character to an integer in C? 15 Answers 15 ...
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Add subdomain to localhost URL

I am writing an web application that behaves differently depending on a url prefix. The format is something like: 5 Answers...
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Generating random numbers in Objective-C

I'm a Java head mainly, and I want a way to generate a pseudo-random number between 0 and 74. In Java I would use the method: ...
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Set Matplotlib colorbar size to match graph

I cannot get the colorbar on imshow graphs like this one to be the same height as the graph, short of using Photoshop after the fact. How do I get the heights to match? ...