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What is the significance of initializing direction arrays below with given values when developing ch
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File extension for PowerShell 3
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PowerShell files for all versions are .ps1 (or .psm1, .psd1, etc.).
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Concatenate a vector of strings/character
...ta, collapse = '')
Thanks to http://twitter.com/onelinetips/status/7491806343
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Efficient way to apply multiple filters to pandas DataFrame or Series
...'col1'] >= 1]
Out[12]:
col1 col2
1 1 11
2 2 12
In [13]: df[(df['col1'] >= 1) & (df['col1'] <=1 )]
Out[13]:
col1 col2
1 1 11
If you want to write helper functions for this, consider something along these lines:
In [14]: def b(x, col, op, n):
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Rails 3 execute custom sql query without a model
...t that is supposed to deal with database. I used code given below in rails 3
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Custom Python list sorting
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edited Feb 5 '15 at 17:33
Charlie
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answered Aug 7 '12 at 16:...
VB.NET equivalent of C# property shorthand?
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C++ semantics of `static const` vs `const`
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Lightness Races in Orbit
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answered Sep 14 '10 at 13:22
Ben VoigtBe...
Specify custom Date format for colClasses argument in read.table/read.csv
...rom) as.Date(from, format="%d/%m/%Y") )
tmp <- c("1, 15/08/2008", "2, 23/05/2010")
con <- textConnection(tmp)
tmp2 <- read.csv(con, colClasses=c('numeric','myDate'), header=FALSE)
str(tmp2)
Then modify if needed to work for your data.
Edit ---
You might want to run setClass('myDate') ...