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Find a commit on GitHub given the commit hash
I am fairly new to Github and have come across an amateur-ish problem.
3 Answers
3
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How to randomize (or permute) a dataframe rowwise and columnwise?
...1 1 1 0
2 1 0 0
3 0 1 0
4 0 0 0
Shuffle row-wise:
> df2 <- df1[sample(nrow(df1)),]
> df2
a b c
3 0 1 0
4 0 0 0
2 1 0 0
1 1 1 0
By default sample() randomly reorders the elements passed as the first argument. This means that the default size is the size of the passed array. Passing ...
How to pass command line arguments to a rake task
I have a rake task that needs to insert a value into multiple databases.
18 Answers
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How to split a large text file into smaller files with equal number of lines?
I've got a large (by number of lines) plain text file that I'd like to split into smaller files, also by number of lines. So if my file has around 2M lines, I'd like to split it up into 10 files that contain 200k lines, or 100 files that contain 20k lines (plus one file with the remainder; being ev...
What does curly brackets in the `var { … } = …` statements do?
Not sure if this is a Mozilla-specific JS syntax, but I often found variables being declared this way, for example, in add-on SDK docs :
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Getting all types in a namespace via reflection
How do you get all the classes in a namespace through reflection in C#?
11 Answers
11
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Calling shell functions with xargs
I am trying to use xargs to call a more complex function in parallel.
5 Answers
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How to format numbers as currency string?
I would like to format a price in JavaScript. I'd like a function which takes a float as an argument and returns a string formatted like this:
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Remove HTML tags from a String
Is there a good way to remove HTML from a Java string? A simple regex like
33 Answers
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What can I use instead of the arrow operator, `->`?
What is the arrow operator ( -> ) a synonym for?
7 Answers
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