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How do I get the row count of a pandas DataFrame?
...setup=lambda n: pd.DataFrame(np.arange(n * 3).reshape(n, 3)),
n_range=[2**k for k in range(25)],
kernels=[
lambda data: data.shape[0],
lambda data: data[0].count(),
lambda data: len(data.index),
],
labels=["data.shape[0]", "data[0].count()", "len(data.index)"]...
Can you have if-then-else logic in SQL? [duplicate]
...e1 WHERE project = 1
ELSE IF ((SELECT COUNT(*) FROM table1 WHERE project = 2) > 0)
SELECT product, price FROM table1 WHERE project = 2
ELSE IF ((SELECT COUNT(*) FROM table1 WHERE project = 3) > 0)
SELECT product, price FROM table1 WHERE project = 3
...
How do I add multiple arguments to my custom template filter in a django template?
... example, if you want a filter that checks if variable X is in the list [1,2,3,4] you will want a template filter that looks like this:
{% if X|is_in:"1,2,3,4" %}
Now we can create your templatetag like this:
from django.template import Library
register = Library()
def is_in(var, args):
if...
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Converting milliseconds to a date (jQuery/JavaScript)
...;
var date = new Date(time);
alert(date.toString()); // Wed Jan 12 2011 12:42:46 GMT-0800 (PST)
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Using Pairs or 2-tuples in Java [duplicate]
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324
I don't think there is a general purpose tuple class in Java but a custom one might be as easy ...
How do I get user IP address in django?
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edited May 23 '17 at 10:31
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answered Jan 3 '11 at 4:08
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A more useful statusline in vim? [closed]
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edited May 9 '16 at 21:49
go2null
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How do I write a short literal in C++?
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82
((short)2)
Yeah, it's not strictly a short literal, more of a casted-int, but the behaviour is...
How can I pad a value with leading zeros?
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