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Drop rows with all zeros in pandas data frame
I can use pandas dropna() functionality to remove rows with some or all columns set as NA 's. Is there an equivalent function for dropping rows with all columns having value 0?
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delete_all vs destroy_all?
...any tables. I want to delete this user and every record that has his ID in all tables.
4 Answers
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Set up git to pull and push all branches
I'd like to push and pull all the branches by default, including the newly created ones.
8 Answers
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Get the week start date and week end date from week number
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But you don't have to remember that table and just the formula, and actually you could use a slightly different one too the main need is to use a value that will make the remainder the correct number of days.
Here is a working example:
DECLARE @MondayDateFirstValue INT = 1
DECLARE @FridayDateFi...
What does “all” stand for in a makefile?
...s concerning Makefiles but for me it is still unclear for what the target "all" stands for and what it does.
4 Answers
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Simultaneously merge multiple data.frames in a list
...ch 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, I could merely rbind , for which plyr's rbind.fill would do the job, but that'...
List of installed gems?
Is there a Ruby method I can call to get the list of installed gems?
11 Answers
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LINQ: Not Any vs All Don't
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Implementation of All according to ILSpy (as in I actually went and looked, rather than the "well, that method works a bit like ..." I might do if we were discussing the theory rather than the impact).
public static bool All<TSource>(th...
Python syntax for “if a or b or c but not all of them”
...three command line arguments. (Either it runs on default behavior or needs all three values specified.)
15 Answers
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How to install Android SDK Build Tools on the command line?
... the build tools in the list. They're in the "obsolete" category. To see all available downloads, use
android list sdk --all
And then to get one of the packages in that list from the command line, use:
android update sdk -u -a -t <package no.>
Where -u stands for --no-ui, -a stands fo...