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Overlaying histograms with ggplot2 in R

... with some output: dat <- data.frame(xx = c(runif(100,20,50),runif(100,40,80),runif(100,0,30)),yy = rep(letters[1:3],each = 100)) ggplot(dat,aes(x=xx)) + geom_histogram(data=subset(dat,yy == 'a'),fill = "red", alpha = 0.2) + geom_histogram(data=subset(dat,yy == 'b'),fill = "blue", alph...
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Rebase a single Git commit

... answered Jan 31 '13 at 21:46 tewetewe 2,25333 gold badges1919 silver badges1818 bronze badges ...
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Retargeting solution from .Net 4.0 to 4.5 - how to retarget the NuGet packages?

I have migrated a solution that is currently targeting .NET 4.0 in VS2010 to VS2012 and now I would like to re-target it to .Net 4.5 ...
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What do single quotes do in C++ when used on multiple characters?

... It's a multi-character literal. 1952805748 is 0x74657374, which decomposes as 0x74 -> 't' 0x65 -> 'e' 0x73 -> 's' 0x74 -> 't' Edit: C++ standard, §2.14.3/1 - Character literals (...) An ordinary character literal that contains more than one c-char is...
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Immediate function invocation syntax

... 74 From Douglass Crockford's style convention guide: (search for "invoked immediately") When a fun...
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Android: textColor of disabled button in selector not showing?

... | edited May 1 '18 at 23:41 Daniel Nugent 39.6k1313 gold badges100100 silver badges123123 bronze badges ...
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How to convert An NSInteger to an int?

... 4 Answers 4 Active ...
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Error :Request header field Content-Type is not allowed by Access-Control-Allow-Headers

I created an mvc4 web api project using vS2012. I used following tutorial to solve the Cross-Origin Resource Sharing, "http://blogs.msdn.com/b/carlosfigueira/archive/2012/07/02/cors-support-in-asp-net-web-api-rc-version.aspx". It is working successfully, and i post data from client side to server s...
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String literals and escape characters in postgresql

... | edited Mar 4 '10 at 23:08 answered Aug 4 '08 at 1:07 ...
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How to get a enum value from string in C#?

... 174 baseKey choice; if (Enum.TryParse("HKEY_LOCAL_MACHINE", out choice)) { uint value = (uint)c...