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Evaluate expression given as a string

...l(parse(text="gray"))) [1] "function" > class(eval(parse(text="blue"))) Error in eval(expr, envir, enclos) : object 'blue' not found See also tryCatch. share | improve this answer | ...
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Unresolved Import Issues with PyDev and Eclipse

... Yes, closed and reopened the project to get rid of that disturbing ImportError messages – somnathchakrabarti Sep 10 '17 at 9:07 ...
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Minimizing NExpectation for a custom distribution in Mathematica

...g from that guess FindMinimum[MRL[start], {start, 0.05}] and after some errors (your function is not defined below 0, so I guess the minimizer pokes a little in that forbidden region) we get {0.0418137, {start -> 0.0584312}} So the optimum should be at start = 0.0584312 with a mean residual ...
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Simpler way to put PDB breakpoints in Python code?

Just a convenience question. I've been a bit spoiled with debuggers in IDEs like Visual Studio and XCode. I find it a bit clumsy to have to type import pdb; pdb.set_trace() to set a breakpoint (I'd rather not import pdb at the top of the file as I might forget and leave it in). ...
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How to decode Unicode escape sequences like “\u00ed” to proper UTF-8 encoded characters?

Is there a function in PHP that can decode Unicode escape sequences like " \u00ed " to " í " and all other similar occurrences? ...
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nginx - nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)

All of a sudden I am getting the below nginx error 17 Answers 17 ...
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How to make MySQL handle UTF-8 properly

...ne of the responses to a question I asked yesterday suggested that I should make sure my database can handle UTF-8 characters correctly. How I can do this with MySQL? ...
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How to create an HTTPS server in Node.js?

... this out instead stackoverflow.com/questions/5136353/node-js-https-secure-error – Larry Battle Oct 15 '12 at 21:05 7 ...
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How do I return NotFound() IHttpActionResult with an error message or exception?

... different. Here's how you might do it in your case (assuming you want the error message in text/plain; if you want JSON, you'd do something slightly different with the content): public class NotFoundTextPlainActionResult : IHttpActionResult { public NotFoundTextPlainActionResult(string message...
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AngularJS - how to get an ngRepeat filtered result reference

I am using an ng-repeat directive with filter like so: 6 Answers 6 ...