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How to calculate a logistic sigmoid function in Python?

...091512 Update: Note that the above was mainly intended as a straight one-to-one translation of the given expression into Python code. It is not tested or known to be a numerically sound implementation. If you know you need a very robust implementation, I'm sure there are others where people have a...
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How to delete or add column in SQLITE?

I want to delete or add column in sqlite database 19 Answers 19 ...
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IF… OR IF… in a windows batch file

Is there a way to write an IF OR IF conditional statement in a windows batch-file? 14 Answers ...
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How to disable Crashlytics during development

Is there any simple way to turn Crashlytics Android SDK off while developing ? 28 Answers ...
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How to Implement Custom Table View Section Headers and Footers with Storyboard

Without using a storyboard we could simply drag a UIView onto the canvas, lay it out and then set it in the tableView:viewForHeaderInSection or tableView:viewForFooterInSection delegate methods. ...
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One SVN repository or many?

If you have multiple, unrelated projects, is it a good idea to put them in the same repository? 13 Answers ...
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Git: Correct way to change Active Branch in a bare repository?

I have a bare repository that's used as the central store for my project. All the developers do git clone <repo> to share with it. When they do the clone, they get a checkout of the master branch (unless they do git clone -n ) because repo.git/HEAD contains ref: refs/heads/master , mak...
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Difference between Inheritance and Composition

Are Composition and Inheritance the same? If I want to implement the composition pattern, how can I do that in Java? 17 Ans...
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Difference between “module.exports” and “exports” in the CommonJs Module System

...om/articles/getting-started/what-is-require ), it states that "If you want to set the exports object to a function or a new object, you have to use the module.exports object." ...
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How do you do a ‘Pause’ with PowerShell 2.0?

OK, I'm losing it. PowerShell is annoying me. I'd like a pause dialog to appear, and it won't. 5 Answers ...