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How to print a groupby object
... = pd.DataFrame({'A': ['one', 'one', 'two', 'three', 'three', 'one'], 'B': range(6)})
Then simple 1 line code
df.groupby('A').apply(print)
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f...
Iterate over object attributes in python
...s(IterMixin): pass
...
>>> yc = YourClass()
>>> yc.one = range(15)
>>> yc.two = 'test'
>>> dict(yc)
{'one': [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14], 'two': 'test'}
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Matplotlib 2 Subplots, 1 Colorbar
...5, 0.7])
fig.colorbar(im, cax=cbar_ax)
plt.show()
Note that the color range will be set by the last image plotted (that gave rise to im) even if the range of values is set by vmin and vmax. If another plot has, for example, a higher max value, points with higher values than the max of im will s...
Will using 'var' affect performance?
...e, if you have this method:
IList<int> Foo()
{
return Enumerable.Range(0,10).ToList();
}
Consider these three lines of code to call the method:
List<int> bar1 = Foo();
IList<int> bar = Foo();
var bar3 = Foo();
All three compile and execute as expected. However, the first two ...
How to generate a random string of a fixed length in Go?
...func RandStringRunes(n int) string {
b := make([]rune, n)
for i := range b {
b[i] = letterRunes[rand.Intn(len(letterRunes))]
}
return string(b)
}
2. Bytes
If the characters to choose from and assemble the random string contains only the uppercase and lowercase letters of t...
Accessing the index in 'for' loops?
...etimes more commonly (but unidiomatically) found in Python:
for index in range(len(items)):
print(index, items[index])
Use the Enumerate Function
Python's enumerate function reduces the visual clutter by hiding the accounting for the indexes, and encapsulating the iterable into another ite...
Get key by value in dictionary
...n each method 100000 times:
Method 1:
>>> profile.run("for i in range(0,100000): method1(list,16)")
200004 function calls in 1.173 seconds
Method 2:
>>> profile.run("for i in range(0,100000): method2(list,16)")
200004 function calls in 1.222 seconds
Method 3:
>...
How to elegantly check if a number is within a range?
...
There are a lot of options:
int x = 30;
if (Enumerable.Range(1,100).Contains(x))
//true
if (x >= 1 && x <= 100)
//true
Also, check out this SO post for regex options.
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Coalesce function for PHP?
...d array element is falsey will result in an error. $input['properties']['range_low'] ?: '?'
– Keyo
Jul 12 '11 at 23:28
...
Unicode equivalents for \w and \b in Java regular expressions?
...\w))
with the \w defined in the appropriate way.
(You might think it strange that the A and C components are opposites. In a perfect world, you should be able to write that AB|D, but for a while I was chasing down mutual exclusion contradictions in Unicode properties — which I think I’ve tak...