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Apply multiple functions to multiple groupby columns
... similar dataframe as the one from above
df = pd.DataFrame(np.random.rand(4,4), columns=list('abcd'))
df['group'] = [0, 0, 1, 1]
df
a b c d group
0 0.418500 0.030955 0.874869 0.145641 0
1 0.446069 0.901153 0.095052 0.487040 0
2 0.843026 0.9361...
How do I format XML in Notepad++?
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Try Plugins -> XML Tools -> Pretty Print (libXML) or (XML only - with line breaks Ctrl +...
Node.js Logging
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zs2020
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answered Aug 18 '12 at 15:40
Charlie KeyCharlie Key
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Could not load file or assembly 'System.Data.SQLite'
I've installed ELMAH 1.1 .Net 3.5 x64 in my ASP.NET project and now I'm getting this error (whenever I try to see any page):
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Read a file one line at a time in node.js?
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Since Node.js v0.12 and as of Node.js v4.0.0, there is a stable readline core module. Here's the easiest way to read lines from a file, without any external modules:
const fs = require('fs');
const readline = require('readline');
async function processLineByLine...
How to create NS_OPTIONS-style bitmask enumerations in Swift?
...tions.FirstOption
let opt2: MyOptions = .SecondOption
let opt3 = MyOptions(4)
And it also behaves like we'd expect options to behave:
let singleOption = MyOptions.FirstOption
let multipleOptions: MyOptions = singleOption | .SecondOption
if multipleOptions & .SecondOption != nil { // see n...
how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...ww.postgresql.org/docs/9.3/static/plpgsql-control-structures.html, example 40-2 right at the bottom.
That's usually the easiest way. You can do some magic with rules, but it's likely going to be a lot messier. I'd recommend the wrap-in-function approach over that any day.
This works for single row...
How to run a shell script in OS X by double-clicking?
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edited Aug 28 at 2:40
Jay
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answered Feb 26 '11 at 9:14
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MySQL INNER JOIN select only one row from second table
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edited Aug 21 '14 at 8:33
oldergod
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ans...
Pipe to/from the clipboard in Bash script
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lhunathlhunath
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