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Underscore: sortBy() based on multiple attributes

... said, that's pretty hacky. To do this properly you'd probably want to actually use the core JavaScript sort method: patients.sort(function(x, y) { var roomX = x[0].roomNumber; var roomY = y[0].roomNumber; if (roomX !== roomY) { return compare(roomX, roomY); } return compare(x[0].name...
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How do I use prepared statements in SQlite in Android?

... I use prepared statements in Android all the time, it's quite simple : SQLiteDatabase db = dbHelper.getWritableDatabase(); SQLiteStatement stmt = db.compileStatement("INSERT INTO Country (code) VALUES (?)"); stmt.bindString(1, "US"); stmt.executeInsert(); ...
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How are feature_importances in RandomForestClassifier determined?

...d in [1] (often cited, but unfortunately rarely read...). It is sometimes called "gini importance" or "mean decrease impurity" and is defined as the total decrease in node impurity (weighted by the probability of reaching that node (which is approximated by the proportion of samples reaching that no...
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How to convert vector to array

...making a pointer that points to the actual array the vector is using internally. If you want to copy GMan's answer explains how – Michael Mrozek May 27 '10 at 17:22 4 ...
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Cross-browser testing: All major browsers on ONE machine

...ri Adobe Flash Player Download summary Sandboxie Part 2: Installation and configuration Internet Explorer Firefox Opera Chrome Safari Developer tools (and shortcuts) Measured set-up time and disk space Time needed per browser (install & config) Optimal us...
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Algorithm to detect corners of paper sheet in photo

...n are awesome, move to them as soon as possible. :D Instead of removing small objects and or noise, lower the canny restraints, so it accepts more edges, and then find the largest closed contour (in OpenCV use findcontour() with some simple parameters, I think I used CV_RETR_LIST). might still stru...
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How to resize superview to fit all subviews with autolayout?

...n a UITableViewCell (to determine row height for example) then you should call it against your cell contentView and grab the height. Further considerations exist if you have one or more UILabel's in your view that are multiline. For these it is imperitive that the preferredMaxLayoutWidth propert...
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Use of *args and **kwargs [duplicate]

...u're not sure how many arguments might be passed to your function, i.e. it allows you pass an arbitrary number of arguments to your function. For example: >>> def print_everything(*args): for count, thing in enumerate(args): ... print( '{0}. {1}'.format(count, thing)) ... ...
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Remove HTML Tags in Javascript with Regex

I am trying to remove all the html tags out of a string in Javascript. Heres what I have... I can't figure out why its not working....any know what I am doing wrong? ...
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What does $_ mean in PowerShell?

... This is the variable for the current value in the pipe line, which is called $PSItem in Powershell 3 and newer. 1,2,3 | %{ write-host $_ } or 1,2,3 | %{ write-host $PSItem } For example in the above code the %{} block is called for every value in the array. The $_ or $PSItem variable ...