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Pandas: Setting no. of max rows
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Set display.max_rows:
pd.set_option('display.max_rows', 500)
For older versions of pandas (<=0.11.0) you need to change both display.height and display.max_rows.
pd.set_option('display.height', 500)
pd.set_option('display.max_rows', 500)
See also pd.describe_option('display...
How to generate all permutations of a list?
...:
for i in range(len(elements)):
# nb elements[0:1] works in both string and list contexts
yield perm[:i] + elements[0:1] + perm[i:]
A couple of alternative approaches are listed in the documentation of itertools.permutations. Here's one:
def permutatio...
Should I delete the cgi-bin folder in a subdomain I just created?
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answered Feb 23 '10 at 20:56
janmoesenjanmoesen
7,28011 gold badge2020 silver badges1717 bronze badges
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Array.Add vs +=
...nd the added value. For example, to add an element with a
value of 200 to the array in the $a variable, type:
$a += 200
Source: about_Arrays
+= is an expensive operation, so when you need to add many items you should try to add them in as few operations as possible, ex:
$arr = 1..3 ...
Difference between make and build in Android Studio
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answered Dec 4 '13 at 13:01
Grzegorz ŻurGrzegorz Żur
38.5k1313 gold badges9696 silver badges9191 bronze badges
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Why do you have to call .items() when iterating over a dictionary in Python?
...-- which is a check I believe I may have performed, or wanted to perform, 100 times more rarely than what if k in C actually means, checking the presence of the key only and completely ignoring the value.
On the other hand, wanting to loop just on keys is quite common, e.g.:
for k in thedict:
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What makes Lisp macros so special?
...le syntax for a common case. The line
divisibleByTwo = [x for x in range(10) if x % 2 == 0]
yields a list containing all even numbers between 0 and 9. Back in the Python 1.5 days there was no such syntax; you'd use something more like this:
divisibleByTwo = []
for x in range( 10 ):
if x % 2 ...
sed beginner: changing all occurrences in a folder
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edited May 25 '09 at 3:13
answered May 25 '09 at 2:51
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Strings in a DataFrame, but dtype is object
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HYRYHYRY
78.9k2020 gold badges157157 silver badges168168 bronze badges
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Delete Local Folder in TFS
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Jun 19 '14 at 7:43
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