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How do I delete rows in a data frame?

...a and have a look around and reorder the data. Your row deletion code will now delete the wrong rows, and worse, you are unlikely to get any errors warning you that this has occurred. Better strategy A better strategy is to delete rows based on substantive and stable properties of the row. For exa...
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Modular multiplicative inverse function in Python

...: I'm the current maintainer of the gmpy library. Updated answer 2 gmpy2 now properly raises an exception when the inverse does not exists: >>> import gmpy2 >>> gmpy2.invert(0,5) Traceback (most recent call last): File "<stdin>", line 1, in <module> ZeroDivisionEr...
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Android- create JSON Array and JSON Object

...save"); params.put("data", jsonObj.toString()); // Now you can send them to the server. share | improve this answer | follow | ...
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JavaScript data formatting/pretty printer

... (yes I know you can click to expand them, but clicking 10 or so links every time I want to dump the data is what I'm doing now - very slow progress) – Dan Sep 24 '08 at 22:51 ...
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SQL Server SELECT LAST N Rows

This is a known question but the best solution I've found is something like: 18 Answers ...
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How to close current tab in a browser window?

...se the browser will attempt to go to that URL (which it obviously isn't). Now the options on the window.confirm() dialog box will be OK and Cancel (not Yes and No). If you really want Yes and No you'll need to create some kind of modal Javascript dialog box. Note: there is browser-specific differe...
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Does a view exist in ASP.NET MVC?

... if there are other implementations out there like that. Since you won't know the inner workings of the view engine as this code executes, you might want to throw a catch { return false; } around this puppy, just to be safe. – Brian Colavito Mar 27 '13 at 15:4...
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Ignoring new fields on JSON objects using Jackson [duplicate]

...of your class (not to individual methods): @JsonIgnoreProperties(ignoreUnknown = true) public class Foo { ... } Depending on the jackson version you are using you would have to use a different import in the current version it is: import com.fasterxml.jackson.annotation.JsonIgnoreProperties; ...
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Xcode 4: How do you view the console?

...ed Jul 31 '10 at 8:04 Piotr KalinowskiPiotr Kalinowski 2,16211 gold badge1313 silver badges1313 bronze badges ...
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How do I call a JavaScript function on page load?

... And now when I'm dynamically including a server-generated page and need DOM-readiness, I need to work through this minefield. If only someone would have encouraged properly library user earlier. – Stefan Ken...