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How to sort a dataFrame in python pandas by two or more columns?
... deprecated in favor of sort_values. sort was completely removed in the 0.20.0 release. The arguments (and results) remain the same:
df.sort_values(['a', 'b'], ascending=[True, False])
You can use the ascending argument of sort:
df.sort(['a', 'b'], ascending=[True, False])
For example:
In ...
Is there a C++ gdb GUI for Linux? [closed]
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28 Answers
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Why are there two kinds of functions in Elixir?
... Ruby. We can create it as follows:
x = 1
fun = fn y -> x + y end
fun.(2) #=> 3
A function can have multiple clauses too:
x = 1
fun = fn
y when y < 0 -> x - y
y -> x + y
end
fun.(2) #=> 3
fun.(-2) #=> 3
Now, let's try something different. Let's try to define different ...
What is the coolest thing you can do in
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How to get the index of a maximum element in a numpy array along one axis
I have a 2 dimensional NumPy array. I know how to get the maximum values over axes:
4 Answers
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How to convert a factor to integer\numeric without loss of information?
... mean median uq max neval
## as.numeric(levels(f))[f] 3.982 5.120 6.088624 5.405 5.974 1981.418 1e+05
## as.numeric(levels(f)[f]) 5.973 7.111 8.352032 7.396 8.250 4256.380 1e+05
## as.numeric(as.character(f)) 6.827 8.249 9.628264 8.534 9.671 1983.694 1e+05
## ...
What's the u prefix in a Python string?
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You're right, see 3.1.3. Unicode Strings.
It's been the syntax since Python 2.0.
Python 3 mad...
Pandas - How to flatten a hierarchical index in columns
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answered Jan 24 '13 at 18:37
Andy HaydenAndy Hayden
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How do I install pip on macOS or OS X?
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21 Answers
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Remove 'a' from legend when using aesthetics and geom_text
...nd = FALSE)
The argument show_guide changed name to show.legend in ggplot2 2.0.0 (see release news).
Pre-ggplot2 2.0.0:
With show_guide = FALSE like so...
ggplot( data=iris, aes(x=Sepal.Length, y=Sepal.Width , colour = Species , shape = Species, label = Species ) , size=20 ) +
geom_point()+
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