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What is the most efficient way to loop through dataframes with pandas? [duplicate]
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The newest versions of pandas now include a built-in function for iterating over rows.
for index, row in df.iterrows():
# do some logic here
Or, if you want it faster use itertuples()
But, unutbu's suggestion to use numpy functions to avoi...
Use of an exclamation mark in a Git commit message via the command line
How do I enter an exclamation point into a Git commit message from the command line?
6 Answers
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C# switch statement limitations - why?
...t the same
thing as a big if-else statement.
Each case must be unique and evaluated
statically. The switch statement does
a constant time branch regardless of
how many cases you have. The if-else
statement evaluates each condition
until it finds one that is true.
In fact, the C#...
Can I get “&&” or “-and” to work in PowerShell?
...ogle Search, but the best I've found is this article which says to use -and .
11 Answers
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How do I tidy up an HTML file's indentation in VI?
...page into a html file. Open with VIM, type "set smartindent", then "gg=G" and it doesn't fix the indenting of the file.
– mmcdole
May 2 '09 at 20:40
16
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How can I have ruby logger log output to stdout as well as file?
...ime Logger calls puts on your MultiIO object, it will write to both STDOUT and your log file.
Edit: I went ahead and figured out the rest of the interface. A log device must respond to write and close (not puts). As long as MultiIO responds to those and proxies them to the real IO objects, this s...
how to fire event on file select
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and what happens when you submit the form asynchronously, don't navigate away from the page, then attempt to upload the same file again? This code will only execute once, the second time, selecting the same file will not exe...
Finding row index containing maximum value using R
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@bartektartanus And how do you suppose which.max figures out the max? :p
– Nick Ulle
Nov 29 '14 at 23:30
10
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How to reverse a 'rails generate'
I want to delete all the files it created and roll back any changes made, but not necessarily to the database, but more to the config files.
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What is the Windows equivalent of the diff command?
...t there is a post similar to this : here .
I tried using the comp command like it mentioned, but if I have two files, one with data like "abcd" and the other with data "abcde", it just says the files are of different sizes. I wanted to know where exactly they differ. In Unix, the simple diff te...