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Selecting multiple columns in a pandas dataframe
...of the first two columns) then you can do this instead:
df1 = df.iloc[:, 0:2] # Remember that Python does not slice inclusive of the ending index.
Additionally, you should familiarize yourself with the idea of a view into a Pandas object vs. a copy of that object. The first of the above methods wil...
How do I run multiple background commands in bash in a single line?
...background and run sequentially, you would do something like this:
(sleep 2; sleep 3) &
If, on the other hand, you would like them to run in parallel in the background, you can instead do this:
sleep 2 & sleep 3 &
And the two techniques could be combined, such as:
(sleep 2; echo f...
Finding differences between elements of a list
...gt;> [j-i for i, j in zip(t[:-1], t[1:])] # or use itertools.izip in py2k
[2, 3]
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Java integer to byte array
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298
using Java NIO's ByteBuffer is very simple:
byte[] bytes = ByteBuffer.allocate(4).putInt(1695...
getMinutes() 0-9 - How to display two digit numbers?
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GCC compile error with >2 GB of code
I have a huge number of functions totaling around 2.8 GB of object code (unfortunately there's no way around, scientific computing ...)
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ios app maximum memory budget
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It's just that we wanted to put as much stuff as we could (graphics & sounds). Artists will always want to put as much as they possibly ...
How do I unit test web api action method when it returns IHttpActionResult?
... your action was returning data in the body like: Ok<string>("data: 12")
actionResult = valuesController.Get(12);
OkNegotiatedContentResult<string> conNegResult = Assert.IsType<OkNegotiatedContentResult<string>>(actionResult);
Assert.Equal("data: 12", conNegResult.Content);
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How to validate an Email in PHP?
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You can use the filter_var() function, which gives you a lot of handy validation and sanitizat...