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How do I convert an interval into a number of hours with postgres?
Say I have an interval like
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Adding a regression line on a ggplot
I'm trying hard to add a regression line on a ggplot. I first tried with abline but I didn't manage to make it work. Then I tried this...
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Altering a column: null to not null
I have a table that has several nullable integer columns. This is undesirable for several reasons, so I am looking to update all nulls to 0 and then set these columns to NOT NULL . Aside from changing nulls to 0 , data must be preserved.
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Using OR in SQLAlchemy
I've looked through the docs and I cant seem to find out how to do an OR query in SQLAlchemy. I just want to do this query.
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Check if key exists and iterate the JSON array using Python
I have a bunch of JSON data from Facebook posts like the one below:
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In .NET, which loop runs faster, 'for' or 'foreach'?
In C#/VB.NET/.NET, which loop runs faster, for or foreach ?
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Convert int to ASCII and back in Python
I'm working on making a URL shortener for my site, and my current plan (I'm open to suggestions) is to use a node ID to generate the shortened URL. So, in theory, node 26 might be short.com/z , node 1 might be short.com/a , node 52 might be short.com/Z , and node 104 might be short.com/ZZ . When...
assertEquals vs. assertEqual in python
Is there a difference between assertEquals and assertEqual in the python unittest.TestCase ?
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Character Limit in HTML
How do you impose a character limit on a text input in HTML?
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Order data frame rows according to vector with specific order
Is there an easier way to ensure that a data frame's rows are ordered according to a "target" vector as the one I implemented in the short example below?
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