Fastest way to find second (third...) highest/lowest value in vector or column

Posted by jorgusch on Stack Overflow See other posts from Stack Overflow or by jorgusch
Published on 2010-03-16T09:54:16Z Indexed on 2010/03/16 9:56 UTC
Read the original article Hit count: 108

Filed under:

r

|

best-practices

Hello,

R offers max and min, but I do not see a really fast way to find the another value in the order apart from sorting the whole vector and than picking value x from this vector.

Is there a faster way to get the second highest value (e.g.)?

Thanks

Related posts about best-practices

Batch Best Practices and Technical Best Practices Updated

as seen on Oracle Blogs - Search for 'Oracle Blogs'
The Batch Best Practices for Oracle Utilities Application Framework based products (Doc Id: 836362.1) and Technical Best Practices for Oracle Utilities Application Framework Based Products (Doc Id: 560367.1) have been updated with updated and new advice for the various versions of the Oracle… >>> More
Partial template specialization of free functions - best practices

as seen on Stack Overflow - Search for 'Stack Overflow'
As most C++ programmers should know, partial template specialization of free functions is disallowed. For example, the following is illegal C++: template <class T, int N> T mul(const T& x) { return x * N; } template <class T> T mul<T, 0>(const T& x) { return T(0); } //… >>> More
Object Oriented PHP Best Practices

as seen on Stack Overflow - Search for 'Stack Overflow'
Say I have a class which represents a person, a variable within that class would be $name. Previously, In my scripts I would create an instance of the object then set the name by just using: $object->name = "x"; However, I was told this was not best practice? That I should have a function set_name()… >>> More
Good place to look for example Database Designs - Best practices

as seen on Stack Overflow - Search for 'Stack Overflow'
I have been given the task to design a database to store a lot of information for our company. Because the task is rather big and contains multiple modules where users should be able to do stuff, I'm worried about designing a good data model for this. I just don't want to end up with a badly designed… >>> More
Notification Email Best Practices--From Server Setup to Programming

as seen on Stack Overflow - Search for 'Stack Overflow'
All, I'm in the process now of building a SaaS tool that allows network admins to generate notification emails to the members of the end-users of our platform (among many many other things). I'm running into a bit of an "out of my expertise" wall, as I know there are a lot of variables involved… >>> More

Developer IT

Fastest way to find second (third...) highest/lowest value in vector or column - Developer IT

Fastest way to find second (third...) highest/lowest value in vector or column

r

best-practices

Related posts about r

Related posts about best-practices

Batch Best Practices and Technical Best Practices Updated

Partial template specialization of free functions - best practices

Object Oriented PHP Best Practices

Good place to look for example Database Designs - Best practices

Notification Email Best Practices--From Server Setup to Programming

Categories cloud