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Specify custom Date format for colClasses argument in read.table/read.csv
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4 Answers
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Mean per group in a data.frame [duplicate]
... 12 23
Aira 2 18 73
Aira 3 19 45
Ben 1 53 19
Ben 2 22 87
Ben 3 19 45
Cat 1 22 87
Cat 2 67 43
Cat 3 45 32', header=TRUE)
aggregate(d[, 3:4], ...
sed: print only matching group
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140
Match the whole line, so add a .* at the beginning of your regex. This causes the entire line t...
PHP Pass by reference in foreach [duplicate]
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146
Because on the second loop, $v is still a reference to the last array item, so it's overwritten...
What does the slash mean in help() output?
What does the / mean in Python 3.4's help output for range before the closing parenthesis?
3 Answers
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What does “%” (percent) do in PowerShell?
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146
When used in the context of a cmdlet (such as your example), it's an alias for ForEach-Object:
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Column order manipulation using col-lg-push and col-lg-pull in Twitter Bootstrap 3
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284
This answer is in three parts, see below for the official release (v3 and v4)
I couldn't even f...
How to get the first column of a pandas DataFrame as a Series?
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143
>>> import pandas as pd
>>> df = pd.DataFrame({'x' : [1, 2, 3, 4], 'y' : [4, ...
Type hinting a collection of a specified type
...include Type Hints as illustrated below.
Update 1
As of May 2015, PEP0484 (Type Hints) has been formally accepted. The draft implementation is also available at github under ambv/typehinting.
Original Answer
As of Aug 2014, I have confirmed that it is not possible to use Python 3 type annotat...
How can I edit a view using phpMyAdmin 3.2.4?
I need to simply edit a very complicated view in phpMyAdmin 3.2.4 but I cannot figure how to do that. Any suggestions?
Thanks!
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