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Simultaneously merge multiple data.frames in a list
I have a list of many data.frames that I want to merge. The issue here is that each data.frame differs in terms of the number of rows and columns, but they all share the key variables (which I've called "var1" and "var2" in the code below). If the data.frames were identical in terms of columns, ...
Are lists thread-safe?
I notice that it is often suggested to use queues with multiple threads, instead of lists and .pop() . Is this because lists are not thread-safe, or for some other reason?
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Move an item inside a list?
In Python, how do I move an item to a definite index in a list?
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How to parse JSON in Scala using standard Scala classes?
I am using the build in JSON class in Scala 2.8 to parse JSON code. I don't want to use the Liftweb one or any other due to minimizing dependencies.
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How to convert a table to a data frame
I have a table in R that has str() of this:
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How can I get a count of the total number of digits in a number?
How can I get a count of the total number of digits of a number in C#? For example, the number 887979789 has 9 digits.
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count (non-blank) lines-of-code in bash
In Bash, how do I count the number of non-blank lines of code in a project?
18 Answers
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Calculate RSA key fingerprint
...for GitHub, but I am not sure how do find my RSA key fingerprint. I originally followed a guide to generate an SSH key on Linux.
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List of lists changes reflected across sublists unexpectedly
I needed to create a list of lists in Python, so I typed the following:
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How to switch position of two items in a Python list?
I haven’t been able to find a good solution for this problem on the net (probably because switch, position, list and Python are all such overloaded words).
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