This is a fast alternative to the `SpatialPointsDataFrame`

.
It is meant to replace that functionality, though there are not as many methods (yet).
The object is primarily a numeric matrix.
Any character column passed to `...`

will be converted to a numeric, using `as.factor`

internally, and stored as a numeric.
Methods using this class will automatically convert character queries to the correct numeric
alternative.

```
agentMatrix(..., coords)
# S4 method for matrix
agentMatrix(..., coords)
# S4 method for missing
agentMatrix(..., coords)
```

- ...
Vectors, a data.frame, or a matrix of extra columns to add to the coordinates, or a

`SpatialPointsDataFrame`

.- coords
A matrix with 2 columns representing

`x`

and`y`

coordinates

An `agentMatrix`

object

```
newAgent <- agentMatrix(
coords = cbind(pxcor = c(1, 2, 5), pycor = c(3, 4, 6)),
char = letters[c(1, 2, 6)],
nums2 = c(4.5, 2.6, 2343),
char2 = LETTERS[c(4, 24, 3)],
nums = 5:7
)
w1 <- createWorld(
minPxcor = 0, maxPxcor = 4, minPycor = 0, maxPycor = 4,
data = runif(25)
)
t1 <- createTurtles(n = 10, coords = randomXYcor(w1, n = 10))
```