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Combine two columns of text in pandas dataframe

... Small data-sets (< 150rows) [''.join(i) for i in zip(df["Year"].map(str),df["quarter"])] or slightly slower but more compact: df.Year.str.cat(df.quarter) Larger data sets (> 150rows) df['Year'].astype(str) + df['quarter'] UPDA...
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Can I position an element fixed relative to parent? [duplicate]

...aScript to find the parent's position relative to the viewport first, then set the child (fixed) element's position accordingly. ALTERNATIVE: Some browsers have sticky CSS support which limits an element to be positioned within both its container and the viewport. Per the commit message: sticky...
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How to navigate through textfields (Next / Done Buttons)

...ewWithTag:nextTag]; if (nextResponder) { // Found next responder, so set it. [nextResponder becomeFirstResponder]; } else { // Not found, so remove keyboard. [textField resignFirstResponder]; } return NO; // We do not want UITextField to insert line-breaks. } Add some more ...
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CASCADE DELETE just once

...on which I want to do a few cascading deletes. However, the tables aren't set up with the ON DELETE CASCADE rule. Is there any way I can perform a delete and tell Postgresql to cascade it just this once? Something equivalent to ...
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spring boot default H2 jdbc connection (and H2 console)

...b with a blank username and blank password. localhost:8082 works with this setup. – Splaktar Nov 26 '14 at 23:28 2 ...
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CGContextDrawImage draws image upside down when passed UIImage.CGImage

...tion doesn't allow you to use CG functions on your image, such as CGContextSetAlpha(), whereas the 2nd answer does. – samvermette May 18 '10 at 2:57 2 ...
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How to delete cookies on an ASP.NET website

...Session.Abandon will clear the ASP.NET session cookie, but not cookies you set manually, like userID here. And Cookies["whatever"] is never null; the framework will create a cookie if you ask for a non-existent one. – Andomar Jul 9 '11 at 14:53 ...
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ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known

I am trying to set up a VPN with a Raspberry Pi, and the first step is gaining the ability to ssh into the device from outside my local network. For whatever reason, this is proving to be impossible and I haven't the slightest clue why. When I try to ssh into my server with user@hostname , I ge...
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How to render a DateTime in a specific format in ASP.NET MVC 3?

... ApplyFormatInEditMode = true)] public DateTime MyDateTime { get; set; } and in your view: @Html.EditorFor(x => x.MyDate) or, for displaying the value, @Html.DisplayFor(x => x.MyDate) Another possibility, which I don't recommend, is to use a weakly typed helper: @Html.TextBox...
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What is the difference between MacVim and regular Vim?

...ly supports 8 colors (+ highlights) but you can use iTerm — which can be set up to support 256 colors — instead of Terminal. So… basically my advice is to just use both. EDIT: I didn't try it but the latest version of Terminal.app (in 10.7) is supposed to support 256 colors. I'm still on 10....