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Remove NA values from a vector
I have a huge vector which has a couple of NA values, and I'm trying to find the max value in that vector (the vector is all numbers), but I can't do this because of the NA values.
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How do I escape a percentage sign in T-SQL?
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also note you do not have to escape a percent symbol in other constructs such as a user function, concatenation, etc.
– Bron Davies
Nov 30 '12 at 18:49
3
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Create a custom callback in JavaScript
..., just declare your callback as an argument and you can call it directly using the argument name.
The basics
function doSomething(callback) {
// ...
// Call the callback
callback('stuff', 'goes', 'here');
}
function foo(a, b, c) {
// I'm the callback
alert(a + " " + b + " " +...
How do you copy the contents of an array to a std::vector in C++ without looping?
...from a different part of the program that I need to store for later processing. Since I don't know how many times my function will be called before it is time to process the data, I need a dynamic storage structure, so I chose a std::vector . I don't want to have to do the standard loop to push_...
Collection that allows only unique items in .NET?
Is there a collection in C# that will not let you add duplicate items to it? For example, with the silly class of
7 Answers...
“unpacking” a tuple to call a matching function pointer
I'm trying to store in a std::tuple a varying number of values, which will later be used as arguments for a call to a function pointer which matches the stored types.
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Use gulp to select and move directories and their files
I'm currently using gulp to call a bash script that cleans my dist/ directory and moves the appropriate files to the clean directory. I would like this to be done with gulp because I am not sure the script would work on a non *nix file system.
So far, I'm using the gulp-clean module to clean the...
Add swipe to delete UITableViewCell
I am making a CheckList application with a UITableView . I was wondering how to add a swipe to delete a UITableViewCell .
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How do I free my port 80 on localhost Windows?
I installed XAMPP 1.6.8 and for some reason it didn't work. Later realized port 80 is not free or not listening. How can I release it or make it free?
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What is a regular expression which will match a valid domain name without a subdomain?
I need to validate a domain name:
20 Answers
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