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Reorder levels of a factor without changing order of values
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121
Use the levels argument of factor:
df <- data.frame(f = 1:4, g = letters[1:4])
df
# f g
#...
How to jump from Intellij terminal to editor with shortcut
...ould be nice since I can jump from my editor to the terminal with Alt + F12 but I cannot do it the other way without using my mouse.
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Python add item to the tuple
...r session as tuple. When I add first one it works but tuple looks like (u'2',) but when I try to add new one using mytuple = mytuple + new.id got error can only concatenate tuple (not "unicode") to tuple .
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how to convert array values from string to int?
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552
You can achieve this by following code,
$integerIDs = array_map('intval', explode(',', $string)...
How to find where a method is defined at runtime?
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422
This is really late, but here's how you can find where a method is defined:
http://gist.github...
How do you round a number to two decimal places in C#?
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Here's some examples:
decimal a = 1.994444M;
Math.Round(a, 2); //returns 1.99
decimal b = 1.995555M;
Math.Round(b, 2); //returns 2.00
You might also want to look at bankers rounding / round-to-even with the following overload:
Math.Round(a, 2, MidpointRounding.ToEven);
There's...
Lambda function in list comprehensions
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271
The first one creates a single lambda function and calls it ten times.
The second one doesn't ...
Integrating MySQL with Python in Windows
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127
Download page for python-mysqldb. The page includes binaries for 32 and 64 bit versions of for ...
python max function using 'key' and lambda expression
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288
lambda is an anonymous function, it is equivalent to:
def func(p):
return p.totalScore ...