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Compare two DataFrames and output their differences side-by-side
I am trying to highlight exactly what changed between two dataframes.
14 Answers
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Pythonic way to check if a list is sorted or not
...haw is looking for. Here is the one liner:
all(l[i] <= l[i+1] for i in xrange(len(l)-1))
For Python 3:
all(l[i] <= l[i+1] for i in range(len(l)-1))
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What size should apple-touch-icon.png be for iPad and iPhone?
Are Apple touch icons bigger than 60x60 supported, and if so, what dimensions should I use for the iPad and iPhone?
11 Answ...
How to print a dictionary's key?
...Py3k (I've been away from python for a while now) it .items(). I added an example.
– juanchopanza
Mar 27 '13 at 22:59
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iOS 7 TableView like in Settings App on iPad
...ITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([cell respondsToSelector:@selector(tintColor)]) {
if (tableView == self.tableView) {
CGFloat cornerRadius = 5.f;
cell.backgroundColor = UIColor.clearCol...
Why does parseInt(1/0, 19) return 18?
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g 16
h 17
i 18
What happens next is that parseInt scans the input "Infinity" to find which part of it can be parsed and stops after accepting the first I (because n is not a valid digit in base 19).
Therefore it behaves as if you called parseInt("I", 19)...
Command-line Unix ASCII-based charting / plotting tool
Is there a good command-line UNIX charting / graphing / plotting tool out there? I'm looking for something that will plot xy points on an ASCII graph.
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pytest: assert almost equal
...is question specifically asked about py.test. py.test 3.0 includes an approx() function (well, really class) that is very useful for this purpose.
import pytest
assert 2.2 == pytest.approx(2.3)
# fails, default is ± 2.3e-06
assert 2.2 == pytest.approx(2.3, 0.1)
# passes
# also works the other wa...
C# operator overload for `+=`?
...rs, from MSDN:
Assignment operators cannot be overloaded, but +=, for example, is evaluated using +, which can be overloaded.
Even more, none of assignment operators can be overloaded. I think this is because there will be an effect for the Garbage collection and memory management, which is a...
The new syntax “= default” in C++11
...d when it is odr-used to create an object of its class type or when it is explicitly defaulted after its first declaration. The implicitly-defined default constructor performs the set of initializations of the class that would be performed by a user-written default constructor for that class with no...