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Overlaying histograms with ggplot2 in R

... Your current code: ggplot(histogram, aes(f0, fill = utt)) + geom_histogram(alpha = 0.2) is telling ggplot to construct one histogram using all the values in f0 and then color the bars of this single histogram according to the variable utt. What you want instead is...
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Determine .NET Framework version for dll

...t the source code because I believe it has been upgraded to Visual Studio 2008 and changed to .NET framework version 3.5. 1...
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How to find Unused Amazon EC2 Security groups

... | edited Jul 1 at 20:15 Dherik 11.2k1010 gold badges7373 silver badges114114 bronze badges answer...
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Emulating a do-while loop in Bash

... answered May 10 '13 at 19:59 jm666jm666 51k1414 gold badges8585 silver badges155155 bronze badges ...
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Efficiently test if a port is open on Linux?

...o use: exec 6<>/dev/tcp/ip.addr.of.server/445 echo -e "GET / HTTP/1.0\n" >&6 cat <&6 I'm using 6 as the file descriptor because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe. As per the comment below, ...
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How to trim a string to N chars in Javascript?

... Why not just use substring... string.substring(0, 7); The first argument (0) is the starting point. The second argument (7) is the ending point (exclusive). More info here. var string = "this is a string"; var length = 7; var trimmedString = string.substring(0, length); ...
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How can I split and parse a string in Python?

I am trying to split this string in python: 2.7.0_bf4fda703454 3 Answers 3 ...
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Virtualbox “port forward” from Guest to Host [closed]

... and find out the ip address: ifconfig example of result (ip address is 10.0.2.15): eth0 Link encap:Ethernet HWaddr 08:00:27:AE:36:99 inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0 Go to Vbox instance window -> Menu -> Network adapters: adapter should be NAT clic...
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What's the difference between “groups” and “captures” in .NET regular expressions?

...ew value. Not .NET, which will keep this history and places it in Captures[0]. If we change your regex to look as follows: MatchCollection matches = Regex.Matches("{Q}{R}{S}", @"(\{[A-Z]\})+"); you will notice that the first Group will have one Captures (the first group always being the whole m...
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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table

...le(a = c(1, 2), b = c(11, 12)) newDT <- DT .Internal(inspect(DT)) # @0000000003B7E2A0 19 VECSXP g0c7 [OBJ,NAM(2),ATT] (len=2, tl=100) # @00000000040C2288 14 REALSXP g0c2 [NAM(2)] (len=2, tl=0) 1,2 # @00000000040C2250 14 REALSXP g0c2 [NAM(2)] (len=2, tl=0) 11,12 # ATTRIB: # ..snip.. .Inte...