Description Usage Arguments Details Value Author(s) See Also Examples
A VSA memory is a collection (list) of VSA vectors, which are usually named. These functions create and modify VSA memories, and compare VSA vectors against the vectors in a memory.
1 2 3 4 5 6 7 8 9 10 11 | vsamem(..., labels = NULL, type = c("list", "matrix", "db"), call = match.call(expand.dots = FALSE))
addmem(..., labels = NULL, call = match.call(expand.dots = FALSE))
getmem(mem, i)
delmem(mem, items)
dotmem(mem, x, ..., cos=FALSE)
cosmem(mem, x, ...)
cleanup(mem, x, ..., cos=TRUE, threshold=NA)
bestmatch(mem, x, ..., cos=TRUE, n=1, num=FALSE)
memsize(mem)
memlabels(mem)
conformable(x=NULL, list, stop.on.error=TRUE)
|
... |
For |
call |
The actual dot args, from which labels can be deduced if not otherwise supplied. |
mem |
A VSA memory object |
labels |
A character vector containing names of the items to use |
type |
Type of memory to create |
items |
A character vector containing names of the items to delete from the memory |
i |
A character vector or a numeric containing a single name or index of the item to retrive from the memory |
x |
A VSA vector |
list |
A list of VSA vectors (can be a VSA memory object) |
cos |
|
threshold |
A scalar value |
n |
An integer |
num |
|
stop.on.error |
Should the function stop with an error if it finds a problem, or return
|
The functions vsamem()
, addmem()
, and delmem()
return the created or modified VSA memory as their value.
VSA memories come in two flavors: list and matrix.
The functions vsamem()
, addmem()
, and delmem()
return a vsamem
object.
The functions dotmem()
and cosmem()
return a
simval
object.
The function cleanup()
returns a VSA vector that is the closest
match in mem that exceeds the threshold, or if no match exceeds the
threshold, returns x
.
The function conformable()
returns TRUE
if x
and
all objects in list
are of the same VSA type and have the same
length. Otherwise it return FALSE
or stops with an error
depending on the value of stop.on.error
.
The function bestmatch()
returns a numeric
containing up to the specified number of best matches. If
num=FALSE
, the numeric values are the similarity scores, and
the names are the names of the objects from the mem
. If
num=TRUE
, the numeric values are indices of the positions of
the best matches in mem
, and an attribute scores
is
attached to it.
Tony Plate tplate@acm.org
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | options(vsatype="realhrr")
options(vsanorm=TRUE)
options(vsalen=1024)
set.seed(0)
circle <- newVec()
square <- newVec()
triangle <- newVec()
star <- newVec()
small <- newVec()
large <- newVec()
large_circle <- addnorm(circle, large)
large_square <- addnorm(square, large)
large_triangle <- addnorm(triangle, large)
large_star <- addnorm(star, large)
small_circle <- addnorm(circle, small)
small_square <- addnorm(square, small)
small_triangle <- addnorm(triangle, small)
small_star <- addnorm(star, small)
sizeMem <- vsamem(small, large)
shapeMem <- vsamem(circle, square, triangle, star, large_circle, large_square, large_triangle,
large_star, small_circle, small_square, small_triangle, small_star)
bestmatch(shapeMem, large_circle, n=3)
bestmatch(sizeMem, large_circle, n=3)
allMem <- addmem(sizeMem, shapeMem)
bestmatch(allMem, large_circle, n=3)
|
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.