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Real life example, when to use OUTER / CROSS APPLY in SQL
...SS / OUTER APPLY with a colleague and we're struggling to find real life examples of where to use them.
4 Answers
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Renaming columns in pandas
...can do something like: new_columns = df.columns.values; new_columns[0] = 'XX'; df.columns = new_columns
– cd98
Nov 20 '13 at 14:18
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What is x after “x = x++”?
What happens (behind the curtains) when this is executed?
17 Answers
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Rename specific column(s) in pandas
...taframe called data . How would I rename the only one column header? For example gdp to log(gdp) ?
5 Answers
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Lambda function in list comprehensions
... of those in a list. To make it equivalent to the first you need:
[(lambda x: x*x)(x) for x in range(10)]
Or better yet:
[x*x for x in range(10)]
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Changing the resolution of a VNC session in linux [closed]
I use VNC to connect to a Linux workstation at work. At work I have a 20" monitor that runs at 1600x1200, while at home I use my laptop with its resolution of 1440x900.
If I set the vncserver to run at 1440x900 I miss out on a lot of space on my monitor, whereas if I set it to run at 1600x1200 it d...
Get unique values from a list in python [duplicate]
...eginning, instead of a list. Then your code should be:
output = set()
for x in trends:
output.add(x)
print(output)
As it has been pointed out, sets do not maintain the original order. If you need that, you should look for an ordered set implementation (see this question for more).
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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting
...to compare which line describes it best (polynomials of different orders, exponential or logarithmic).
7 Answers
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How does Zalgo text work?
I've seen weirdly formatted text called Zalgo like below written on various forums. It's kind of annoying to look at, but it really bothers me because it undermines my notion of what a character is supposed to be. My understanding is that a character is supposed to move horizontally across a line an...
javascript: recursive anonymous function?
...at's a fairly old comment; some/many/all of the problems described in Kangax's blog post may be fixed in more modern browsers.)
When you give a name like that, the name is not visible outside the function (well, it's not supposed to be; that's one of the weirdnesses). It's like "letrec" in Lisp.
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