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Change one value based on another value in pandas
...ta directly into pandas with pandas.read_csv then the following code might be helpful for you.
import pandas
df = pandas.read_csv("test.csv")
df.loc[df.ID == 103, 'FirstName'] = "Matt"
df.loc[df.ID == 103, 'LastName'] = "Jones"
As mentioned in the comments, you can also do the assignment to both ...
How do arrays in C# partially implement IList?
...<T> , among other interfaces. Somehow though, they do this without publicly implementing the Count property of IList<T> ! Arrays have only a Length property.
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How do you track record relations in NoSQL?
...ut the equivalent of foreign keys and indexes in NoSQL KVP or Document databases. Since there are no pivotal tables (to add keys marking a relation between two objects) I am really stumped as to how you would be able to retrieve data in a way that would be useful for normal web pages.
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Fastest sort of fixed length 6 int array
Answering to another Stack Overflow question ( this one ) I stumbled upon an interesting sub-problem. What is the fastest way to sort an array of 6 integers?
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How exactly does __attribute__((constructor)) work?
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It runs when a shared library is loaded, typically during program startup.
That's how all GCC attributes are; presumably to distinguish them from function calls.
GCC-specific syntax.
Yes, this works in C and C++.
No, the function does not need to be...
The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
... community) had enough experience to determine when and/or whether auto is being abused?
6 Answers
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How does the const constructor actually work?
I've noticed it's possible to create a const constructor in Dart. In the documentation, it says that const word is used to denote something a compile time constant.
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From inside of a Docker container, how do I connect to the localhost of the machine?
... running on localhost and not exposing a port to the outside world, so its bound on localhost, not bound on the ip address of the machine.
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How to detect if a script is being sourced
I have a script where I do not want it to call exit if it's being sourced.
17 Answers
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How come a non-const reference cannot bind to a temporary object?
Why is it not allowed to get non-const reference to a temporary object,
which function getx() returns? Clearly, this is prohibited by C++ Standard
but I am interested in the purpose of such restriction, not a reference to the standard.
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