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LaTeX Optional Arguments
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Example from the guide:
\newcommand{\example}[2][YYY]{Mandatory arg: #2;
Optional arg: #1.}
This defines \example to be a command with two arguments,
referred to as #1 and #2 in the {<definition>}--nothing new so far.
But by addi...
python re.sub group: number after \number
How can I replace foobar with foo123bar ?
1 Answer
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git update-index --assume-unchanged on directory
git 1.7.12
4 Answers
4
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What does SQL clause “GROUP BY 1” mean?
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244
It means to group by the first column regardless of what it's called. You can do the same wit...
dplyr: “Error in n(): function should not be called directly”
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120
I presume you have dplyr and plyr loaded in the same session. dplyr is not plyr. ddply is not a...
:first-child not working as expected
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220
The h1:first-child selector means
Select the first child of its parent
if and only if it...
jQuery append() - return appended elements
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264
There's a simpler way to do this:
$(newHtml).appendTo('#myDiv').effects(...);
This turns th...
How do I combine two data frames?
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I believe you can use the append method
bigdata = data1.append(data2, ignore_index=True)
to keep their indexes just dont use the ignore_index keyword ...
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Get item in the list in Scala?
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Use parentheses:
data(2)
But you don't really want to do that with lists very often, since linked lists take time to traverse. If you want to index into a collection, use Vector (immutable) or ArrayBuffer (mutable) or possibly Array (which is j...
ActionLink htmlAttributes
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201
The problem is that your anonymous object property data-icon has an invalid name. C# propertie...