R: How to get the index of a letter from a list A-Z?

Posted by John on Stack Overflow See other posts from Stack Overflow or by John
Published on 2010-03-16T20:28:05Z Indexed on 2010/03/16 20:31 UTC
Read the original article Hit count: 194

Filed under:

r

|

letters

|

index

I want to get the index of a particular letter, e.g.

>  match(LETTERS,"G")
 [1] NA NA NA NA NA NA  1 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA

Gives me that the letter exists, but I want it to return 6 in this case for the 6th element of the list.

Related posts about letters

RegEx: Split String at Capitalized Letters and Non-capitalized letters to Create Small Cap Fonts

as seen on Stack Overflow - Search for 'Stack Overflow'
So i've purposefully stayed away from RegEx as just looking at it kills me...ugh. But now I need it and could really use some help to do this in .NET (C# or VB.NET). I need to split a string based on capitalization or lack thereof. For example: I'm not upPercase "I" "'m not up" "P" … >>> More
array_map applied on a function with 2 parameters

as seen on Stack Overflow - Search for 'Stack Overflow'
I've 2 arrays ($numbers and $letters) and I want to create a new array based on a function that combines every $numbers with every $letters. The parameters of this function involes the value of both $numbers and $letters. (Note: $numbers and $letters doesn't have the same amount of values). I need… >>> More
Apache + PHP in paths with accented letters

as seen on Server Fault - Search for 'Server Fault'
I'm not able to run a PHP enabled web site under Apache on Windows XP if the path to DOCUMENT_ROOT contains accented letters. I'm not referring to the script file names themselves but to any folder in the path components. I have this virtual host definition: <VirtualHost *:80> ServerName… >>> More
Windows XP consuming drive letters

as seen on Super User - Search for 'Super User'
This one's a bit of a stumper. I'm running XP SP3, current with all fixes, etc. My problem is that I can assign a drive letter to a container file (explained below), it works just fine. But once I close the container, the drive letter is no longer available until the next boot. I've got some confidential… >>> More
Batch scripting: iterate over drive letters?

as seen on Server Fault - Search for 'Server Fault'
In windows batch scripts, how can I iterate over all drive letters which correspond to physical volumes or mapped shares? >>> More

Developer IT

R: How to get the index of a letter from a list A-Z? - Developer IT

R: How to get the index of a letter from a list A-Z?

r

letters

index

Related posts about r

Related posts about letters

RegEx: Split String at Capitalized Letters and Non-capitalized letters to Create Small Cap Fonts

array_map applied on a function with 2 parameters

Apache + PHP in paths with accented letters

Windows XP consuming drive letters

Batch scripting: iterate over drive letters?

Categories cloud