search for: a_valu

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2005 Dec 08
2
Prototype.js Hash Methods
...hn%20doe&email=john%40doe.com&msg=say%20hello%20to%20me var mer = h.merge(h); alert(mer.name); //returns john doe alert(mer.email); //returns john-Ch9RrZxMC0c@public.gmane.org alert(mer.msg); //returns say hello to me var a_keys = h.keys(); alert(a_keys); //returns name, email, msg var a_values = h.values(); alert(a_values); //returns john doe,john-Ch9RrZxMC0c@public.gmane.org,say hello to me I want to know if this is the correct usage and how the merge function really works. Any help would be appreciated. Thanks in advance, Mandy.
2011 Aug 10
3
How to quickly convert a data.frame into a structure of lists
...ond attempt was to go through every row of the data.frame and append the value to the appropriate vector. I first initialized a structure of lists ending with NULL vector, then I did something like this: for (i in 1:nrow(DataFrame)) { eval( substitute( append(MyData at list_structure$a_value$b_value, c_value), list(a_value=as.character(DF$A[i]), b_value=as.character(DF$B[i]), c_value=as.character(DF$C[i])) ) ) } This works... but way too slowly for my purpose. I would like to know if there is a better road to take to do this transformation. Or, if there is a way of spee...
2007 Dec 13
4
please explain find_with_ferret, retrieve_records, :include and :conditions
Hello, I''m using find_with_ferret to search multiple models and it works great. The trouble is I need to filter the results using :include and :conditions. I get two errors depending on the syntax I use in the search. Reading the source, I see the retrieve_records method seems to filter the :include and :conditions so that they only apply to the relevant model when searching
2005 Apr 22
1
Beginner in R
hello ( and sorry for my poor english ... ) I'm a newbie on R software and I need to obtain this kind of system : a structure, like a liste : my_struct <- list() my_struct$a <- a_value my_struct$b <- another_value my_struct$c <- one_more_value and a function with two args : the first is a instance of the structure, and the second is any component of the structure (here $a, $b or $c) and the function will do some transformations on this component : my_func <- functio...