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binning data in python with scipy/numpy
is there a more efficient way to take an average of an array in prespecified bins? for example, i have an array of numbers and an array corresponding to bin start and end positions in that array, and I want to just take the mean in those bins? I have code that does it below but i am wondering how it...
DateTime to javascript date
From another answer on Stackoverflow is a conversion from Javascript date to .net DateTime:
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Checking for NULL pointer in C/C++ [closed]
In a recent code review, a contributor is trying to enforce that all NULL checks on pointers be performed in the following manner:
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How to escape braces (curly brackets) in a format string in .NET
How can brackets be escaped in using string.Format .
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How to get the first and last date of the current year?
Using SQL Server 2000, how can I get the first and last date of the current year?
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Difference between map and collect in Ruby?
I have Googled this and got patchy / contradictory opinions - is there actually any difference between doing a map and doing a collect on an array in Ruby/Rails?
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Math.random() versus Random.nextInt(int)
What is the difference between Math.random() * n and Random.nextInt(n) where n is an integer?
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Combine two columns of text in pandas dataframe
I have a 20 x 4000 dataframe in Python using pandas. Two of these columns are named Year and quarter . I'd like to create a variable called period that makes Year = 2000 and quarter= q2 into 2000q2 .
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In where shall I use isset() and !empty()
I read somewhere that the isset() function treats an empty string as TRUE , therefore isset() is not an effective way to validate text inputs and text boxes from a HTML form.
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python pandas: apply a function with arguments to a series
I want to apply a function with arguments to a series in python pandas:
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