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Performance of Java matrix math libraries? [closed]
...thing whose runtime is bound by matrix operations. (Some details below if interested.) This experience prompted the following question:
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Force add despite the .gitignore file
...me slash "/" works but backslash "\" doesn't. The fact that cmd/PowerShell convert "/" to "\" for us makes it easy to run into this.
– ohw
Oct 18 '15 at 22:47
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How to find the length of a string in R
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nchar(YOURSTRING)
you may need to convert to a character vector first;
nchar(as.character(YOURSTRING))
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Subset of rows containing NA (missing) values in a chosen column of a data frame
...r "NA" and "NULL" cells may be of various type (the default behavior is to convert "NA" strings to NA values, and let "NULL" strings as is).
If using read.table() or read.csv(), you should consider the "na.strings" argument to do clean data import, and always work with real R NA values.
An example...
C# nullable string error
...nullable".
Nullable<T> and the ? suffix are for value types such as Int32, Double, DateTime, etc.
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Example of UUID generation using Boost in C++
...important for instances in my program to have unique identifiers. I looked into Boost UUID , but I can't manage to generate the UUID because I don't understand which class and method to use.
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Remove empty elements from an array in Javascript
...ter method in the first case, calls the Boolean constructor as a function, converting the value, and in the second case, the filter method internally turns the return value of the callback implicitly to Boolean.
If you are working with sparse arrays, and you are trying to get rid of the "holes", yo...
How can I configure my makefile for debug and release builds?
...to carefully copy paste each new thing for debug and release and carefully convert it.
– BeeOnRope
Jul 31 '18 at 5:04
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The Web Application Project […] is configured to use IIS. The Web server […] could not be found.
...ght click on the folder you added and you should have an option that says 'convert to application' or 'create virtual directory' or something similar.
!!Make sure the Virtual directory has the name 'MyWebApp'!!
Reload your solution and it should work.
Please be wary; this isn't a programming ques...
How to match a String against string literals in Rust?
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as_slice is deprecated, you should now use the trait std::convert::AsRef instead:
match stringthing.as_ref() {
"a" => println!("0"),
"b" => println!("1"),
"c" => println!("2"),
_ => println!("something else!"),
}
Note that you also have to explicitly h...