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Python Pandas: Get index of rows which column matches certain value
...[i] returns the ith row of df. i does not refer to the index label, i is a 0-based index.
In contrast, the attribute index returns actual index labels, not numeric row-indices:
df.index[df['BoolCol'] == True].tolist()
or equivalently,
df.index[df['BoolCol']].tolist()
You can see the differenc...
Is there an “exists” function for jQuery?
...
2520
In JavaScript, everything is 'truthy' or 'falsy', and for numbers 0 means false, everything else...
Is there a way to word-wrap long words in a div?
... designed to break unbroken strings).
/* Source: http://snipplr.com/view/10979/css-cross-browser-word-wrap */
.wordwrap {
white-space: pre-wrap; /* CSS3 */
white-space: -moz-pre-wrap; /* Firefox */
white-space: -pre-wrap; /* Opera <7 */
white-space: -o-pre-wrap; ...
Inserting code in this LaTeX document with indentation
...t}):
\usepackage{listings}
\usepackage{color}
\definecolor{dkgreen}{rgb}{0,0.6,0}
\definecolor{gray}{rgb}{0.5,0.5,0.5}
\definecolor{mauve}{rgb}{0.58,0,0.82}
\lstset{frame=tb,
language=Java,
aboveskip=3mm,
belowskip=3mm,
showstringspaces=false,
columns=flexible,
basicstyle={\small\ttfa...
Razor View Engine : An expression tree may not contain a dynamic operation
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301
It seems to me that you have an untyped view. By default, Razor views in MVC3 RC are typed as d...
Ruby replace string with captured regex pattern
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edited Feb 12 '15 at 13:10
Jake Berger
4,67911 gold badge2424 silver badges2121 bronze badges
answered ...
Using {} in a case statement. Why?
...
Macke
22k66 gold badges7272 silver badges104104 bronze badges
answered Nov 17 '13 at 13:25
RotemRotem
19.2k66 gold badge...
What does the star operator mean, in a function call?
...(a, b, c, d):
return a + b + c + d
values1 = (1, 2)
values2 = { 'c': 10, 'd': 15 }
s = sum(*values1, **values2)
will execute as:
s = sum(1, 2, c=10, d=15)
Also see section 4.7.4 - Unpacking Argument Lists of the Python documentation.
Additionally you...
Better way of getting time in milliseconds in javascript?
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answered Feb 2 '11 at 12:40
Joeri SebrechtsJoeri Sebrechts
10.6k22 gold badges3333 silver badges4848 bronze badges
...
Show a number to two decimal places
...):
return number_format((float)$number, 2, '.', '');
Example:
$foo = "105";
echo number_format((float)$foo, 2, '.', ''); // Outputs -> 105.00
This function returns a string.
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