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How to filter rows in pandas by regex
...n [10]: df.b.str.contains('^f')
Out[10]:
0 False
1 True
2 True
3 False
Name: b, dtype: bool
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Where to find extensions installed folder for Google Chrome on Mac?
...arch.
Go to chrome://extensions/, and find out the ID of an extension (32 lowercase letters) (if not done already, activate "Developer mode" first).
Open the terminal, cd to the directory which is most likely a parent of your Chrome profile (if unsure, try ~ then /).
Run find . -type d -iname ...
SQL Server dynamic PIVOT query?
...ic SQL PIVOT:
create table temp
(
date datetime,
category varchar(3),
amount money
)
insert into temp values ('1/1/2012', 'ABC', 1000.00)
insert into temp values ('2/1/2012', 'DEF', 500.00)
insert into temp values ('2/1/2012', 'GHI', 800.00)
insert into temp values ('2/10/2012', 'DEF',...
Can't install nuget package because of “Failed to initialize the PowerShell host”
...ne of the fixes that I have come across work. I am using Visual Studio 2013.
34 Answers
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Difference between float and double in php?
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ratchet freak
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answered Jul 19 '10 at 12:14
MacmadeMacmade
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How does '20 seconds' work in Scala?
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173
There are a few things going on.
First, Scala allows dots and parens to be omitted from many m...
How to run functions in parallel?
...ly happened.
– NPE
Aug 26 '11 at 16:30
4
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How to return a file using Web API?
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edited May 23 '17 at 10:31
Community♦
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answered Jun 20 '12 at 18:20
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Find lines from a file which are not present in another file [duplicate]
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The command you have to use is not diff but comm
comm -23 a.txt b.txt
By default, comm outputs 3 columns: left-only, right-only, both. The -1, -2 and -3 switches suppress these columns.
So, -23 hides the right-only and both columns, showing the lines that appear only in the fir...
Is there any sed like utility for cmd.exe? [closed]
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answered May 17 '11 at 9:35
Jakub ŠturcJakub Šturc
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