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Turning off some legends in a ggplot

... You can use guide=FALSE in scale_..._...() to suppress legend. For your example you should use scale_colour_continuous() because length is continuous variable (not discrete). (p3 <- ggplot(mov, aes(year, rating, colour = length, shape = mpaa)) + sca...
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Using fonts with Rails asset pipeline

...path(...). This helper does exactly the same thing but it's more clear. Finally, use your font in your CSS like you declared it in the font-family part. If it was declared capitalized, you can use it like this: font-family: 'Icomoon'; ...
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Regular expression \p{L} and \p{N}

...This syntax is specific for modern Unicode regex implementation, which not all interpreters recognize. You can safely replace \p{L} by {a-zA-Z} (ascii notation) or {\w} (perl/vim notation); and \p{N} by {0-9} (ascii) or {\d} (perl/vim). If you want to match all of them, just do: {a-zA-Z0-9}+ or {\w\...
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How do I create 7-Zip archives with .NET?

... If you can guarantee the 7-zip app will be installed (and in the path) on all target machines, you can offload by calling the command line app 7z. Not the most elegant solution but it is the least work. ...
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Defining a variable with or without export

... Specifically export makes the variable available to child processes via the environment. – Beano Jul 21 '09 at 13:35 ...
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http to https apache redirection

... I have actually followed this example and it worked for me :) NameVirtualHost *:80 <VirtualHost *:80> ServerName mysite.example.com Redirect permanent / https://mysite.example.com/ </VirtualHost> <VirtualHost _de...
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Not equal != operator on NULL

...dicates for such situations. This behavior is not specific to SQL Server. All standards-compliant SQL dialects work the same way. Note: To compare if your value is not null, you use IS NOT NULL, while to compare with not null value, you use <> 'YOUR_VALUE'. I can't say if my value equals or ...
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Why does viewWillAppear not get called when an app comes back from the background?

... In other words, if someone looks at another application or takes a phone call, then switches back to your app which was earlier on backgrounded, your UIViewController which was already visible when you left your app 'doesn't care' so to speak -- as far as it is concerned, it's never disappeared and...
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How do I create a basic UIButton programmatically?

...height: 500) myButton.addTarget(self, action: #selector(pressedAction(_:)), for: .touchUpInside) self.view.addSubview( myButton) func pressedAction(_ sender: UIButton) { // do your stuff here print("you clicked on button \(sender.tag)") } SwiftUI for example you get the step by ...
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Rerender view on browser resize with React

...lobals window */ import React, { useState, useEffect } from 'react' import _debounce from 'lodash.debounce' const Example = () => { const [width, setWidth] = useState(window.innerWidth) useEffect(() => { const handleResize = _debounce(() => setWidth(window.innerWidth), 100) w...