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pandas read_csv and filter columns with usecols
...andas.read_csv when I filter the columns with usecols and use multiple indexes.
5 Answers
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How do I shuffle an array in Swift?
...rom: c, to: 1, by: -1)) {
// Change `Int` in the next line to `IndexDistance` in < Swift 4.1
let d: Int = numericCast(arc4random_uniform(numericCast(unshuffledCount)))
let i = index(firstUnshuffled, offsetBy: d)
swapAt(firstUnshuffled, i)
}
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How to delete duplicates on a MySQL table?
...NORE TABLE `table_name` ADD UNIQUE (title, SID)
note: only works well if index fits in memory
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Is Random class thread safe?
...ss all platforms in the documentation.
I wouldn't write your program to require such a guarantee, especially as you cannot determine the order in which nextInt() will be called.
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Undo part of unstaged changes in git
...ts you choose individual hunks from the diff between your working copy and index to revert. Likewise, git add -p allows you to choose hunks to add to the index, and git reset -p allows you to choose individual hunks from the diff between the index and HEAD to back out of the index.
$ git checkout -...
Git SVN error: a Git process crashed in the repository earlier
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The file in question is likely .git/index.lock and it should be safe to just remove it if you have no other git processes running. Make sure a git-svn command isn't hanging.
PS My usual approach to fixing git-svn problems is to make a fresh pull of the repos...
Laravel redirect back to original destination after login
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in 5.1 it's in middleware RedirectIfAuthenticated.php: if ($this->auth->check()) { return redirect('/privatepage'); }
– Dave Driesmans
Jun 15 '15 at 11:40
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Two-dimensional array in Swift
...ccessing the elements in a multidimensional array, the left-most subscript index refers to the element at that index in the outermost array. The next subscript index to the right refers to the element at that index in the array that’s nested one level in. And so on. This means that in the example ...
How to determine one year from now in Javascript
...a JSFiddle that has a working example: https://jsfiddle.net/wavesailor/g9a6qqq5/
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ios simulator: how to close an app
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Not a fare call bro, the Q was asked you and was responded by @lehn0058 on Aug 29 '13 correctly, now to get easy upvotes, you accepted your answer and modified by copying his. Not a fare call at all. Atleast mention the deserving persons name.
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