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Optimal way to concatenate/aggregate strings
I'm finding a way to aggregate strings from different rows into a single row. I'm looking to do this in many different places, so having a function to facilitate this would be nice. I've tried solutions using COALESCE and FOR XML , but they just don't cut it for me.
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How to count TRUE values in a logical vector
In R, what is the most efficient/idiomatic way to count the number of TRUE values in a logical vector? I can think of two ways:
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Base64 Java encode and decode a string [duplicate]
I want to encode a string into base64 and transfer it through a socket and decode it back.
6 Answers
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What are the differences between .so and .dylib on osx?
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answered Mar 24 '15 at 6:32
Zachary KrausZachary Kraus
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Tuples( or arrays ) as Dictionary keys in C#
I am trying to make a Dictionary lookup table in C#. I need to resolve a 3-tuple of values to one string. I tried using arrays as keys, but that did not work, and I don't know what else to do. At this point I am considering making a Dictionary of Dictionaries of Dictionaries, but that would proba...
MySQL Creating tables with Foreign Keys giving errno: 150
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edited Jan 19 '16 at 16:32
Sergey Brunov
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answe...
Find UNC path of a network drive?
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The answer is a simple PowerShell one-liner:
Get-WmiObject Win32_NetworkConnection | ft "RemoteName","LocalName" -A
If you only want to pull the UNC for one particular drive, add a where statement:
Get-WmiObject Win32_NetworkConnection | where -Property 'LocalName' -eq 'Z:' | ft "Re...
Some built-in to pad a list in python
... John La RooyJohn La Rooy
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Making heatmap from pandas DataFrame
...lt.show() in order to actually see the plot.
– tsveti_iko
Jul 23 '19 at 15:19
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Find where python is installed (if it isn't default dir)
....6.6 (r266:84297, Aug 24 2010, 18:13:38) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.executable
'c:\\Python26\\python.exe'
>>> sys.exec_prefix
'c:\\Python26'
>>>
>>> pr...