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How to succinctly write a formula with many variables from a data frame?

...nks. How would I go about this method using data[[x]] as a listed variable vs. the actual variable name (e.g, 'x3')? For example, how would I make the following work?: lm(d[[1]] ~ d[[3]] + ., data = d) – theforestecologist Dec 10 '15 at 22:42 ...
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Mongoose (mongodb) batch insert?

... Model.create() vs Model.collection.insert(): a faster approach Model.create() is a bad way to do inserts if you are dealing with a very large bulk. It will be very slow. In that case you should use Model.collection.insert, which performs m...
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Singular or plural controller and helper names in Rails

...s. It even seems helpers don't have to make the same choice about singular vs. plural as their corresponding controllers, at least according to my limited experimentation. Is that true? ...
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In PHP with PDO, how to check the final SQL parametrized query? [duplicate]

...rocess is the same as the SQL one (tricky stuff like token-type, bindValue vs bindParam, ...) Workaround This is where I elaborate on Kailash Badu's answer. By logging all SQL queries, we can see what is really run on the server. With mySQL, this can be done by updating the my.cnf (or my.ini in my ...
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How do you access a website running on localhost from iPhone browser

... This answer is a perfect balance of comp sci geek vs visual design geek. Well done. – Roralee May 30 '15 at 18:54 45 ...
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jQuery Ajax calls and the Html.AntiForgeryToken()

...same as a regular POST. _Layout.cshtml In _layout.cshtml I have this JavaScript block. It doesn't write the token into the DOM, rather it uses jQuery to extract it from the hidden input literal that the MVC Helper generates. The Magic string that is the header name is defined as a constant in the ...
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Is there a limit to the length of a GET request? [duplicate]

... edited Dec 26 '12 at 5:05 devsri 6,03555 gold badges2929 silver badges4040 bronze badges answered Nov 5 '08 at 19:44 ...
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PHP method chaining?

...Interface is aimed at creating a DSL. Ex: $foo->setBar(1)->setBaz(2) vs $table->select()->from('foo')->where('bar = 1')->order('ASC). The latter spans multiple objects. – Gordon Sep 16 '10 at 7:32 ...
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Create dynamic URLs in Flask with url_for()

...e snippets of usage for linking js or css to your template are below. <script src="{{ url_for('static', filename='jquery.min.js') }}"></script> <link rel=stylesheet type=text/css href="{{ url_for('static', filename='style.css') }}"> ...
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How to include external Python code to use in other files?

...dostuff) if __name__ == "__main__": dostuff() And from the another script or the python console import teststuff exec(DOSTUFF_SOURCE) dostuff() And now dostuff should be in the local scope and dostuff() will return the console or scripts _name_ whereas executing test.dostuff() will retu...