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How to get the last N rows of a pandas DataFrame?
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This is because of using integer indices (ix selects those by label over -3 rather than position, and this is by design: see integer indexing in pandas "gotchas"*).
*In newer versions of pandas prefer loc or iloc to remove the ambiguity of ix as position or label:
df....
What does “use strict” do in JavaScript, and what is the reasoning behind it?
...ges.
In C, an extremely unfortunate representation of octalness was
selected: Leading zero. So in C, 0100 means 64, not 100, and 08 is an
error, not 8. Even more unfortunately, this anachronism has been
copied into nearly all modern languages, including JavaScript, where
it is only used...
Difference between shared objects (.so), static libraries (.a), and DLL's (.so)?
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FYI: g++ has __attribute__ syntax for selectively 'export' symbols: #define DLLEXPORT __attribute__ ((visibility("default"))) #define DLLLOCAL __attribute__ ((visibility("hidden")))
– Brian Cannard
Jul 10 '14 at 14:49
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CSS: bolding some text without changing its container's size
...e widths to be defined by the width of the menu item. I bold the currently-selected item.
11 Answers
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Difference between Covariance & Contra-variance
...vide so-called “multiple dispatch” or multi methods (this is basically selecting function overloads at run time, e.g. with CLOS) or get the desired effect by using dynamic typing.
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Correct way to write loops for promise.
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feels like this should be the selected answer. graceful and very reusable approach.
– ken
Jan 29 '16 at 16:25
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Adjusting Eclipse console size
...preference'
step 2: go'run/Debug' form lift side of preference window and select 'console'
step 3: In right side of windows increase the size of 'Console buffer size(characters)'
step 4: click ok to exit
[window -->preference -->run/Debug -->console -->Console buffer size(characters)]
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What are the most widely used C++ vector/matrix math/linear algebra libraries, and their cost and be
...s criteria, but if maturity were the only metric, I imagine you would have selected a BLAS or LAPACK based option.
– Catskul
Sep 9 '09 at 17:54
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Use of undeclared identifier 'kUTTypeMovie'
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Add MobileCoreServices.framework if not added already. Select your target and add linked binaries with library.
Add #import <MobileCoreServices/MobileCoreServices.h>
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When should I use malloc in C and when don't I?
...y, but of course you don't know the file's size in advance, since the user selects the file on the spot, at runtime. So basically you need malloc when you don't know the size of the data you're working with in advance. At least that's one of the main reasons for using malloc. In your example with a ...