Report the distances between `agents`

and `agents2`

.

```
NLdist(agents, agents2, world, torus = FALSE, allPairs = FALSE)
# S4 method for matrix,matrix
NLdist(agents, agents2, world, torus = FALSE, allPairs = FALSE)
```

- agents
Matrix (

`ncol`

= 2) with the first column`pxcor`

and the second column`pycor`

representing the`patches`

coordinates, or`AgentMatrix`

object representing the moving`agents`

.- agents2
Matrix (

`ncol`

= 2) with the first column`pxcor`

and the second column`pycor`

representing the`patches`

coordinates, or`AgentMatrix`

object representing the moving`agents`

, orMatrix (

`ncol`

= 2) with the first column`x`

and the second column`y`

representing locations coordinates.- world
`WorldMatrix`

or`worldArray`

object.- torus
Logical to determine if the

`world`

is wrapped. Default is`torus = FALSE`

.- allPairs
Logical. Only relevant if the number of agents/locations in

`agents`

and in`agents2`

are the same. If`allPairs = FALSE`

, the distance between each`agents`

with the corresponding`agents2`

is returned. If`allPairs = TRUE`

, a full distance matrix is returned. Default is`allPairs = FALSE`

.

Numeric. Vector of distances between `agents`

and `agents2`

if
`agents`

and/or `agents2`

contained
one agent/location, or if `agents`

and `agents2`

contained the same
number of agents/locations and `allPairs = FALSE`

, or
Matrix of distances between `agents`

(rows) and
`agents2`

(columns)
if `agents`

and `agents2`

are of different lengths,
or of same length
and `allPairs = TRUE`

.

Distances from/to a patch are measured from/to its center.

If `torus = FALSE`

, `world`

does not need to be provided.

If `torus = TRUE`

, a distance around the sides of the `world`

is
reported only if smaller than the one across the `world`

.

Wilensky, U. 1999. NetLogo. http://ccl.northwestern.edu/netlogo/. Center for Connected Learning and Computer-Based Modeling, Northwestern University. Evanston, IL.

```
w1 <- createWorld(minPxcor = 0, maxPxcor = 9, minPycor = 0, maxPycor = 9)
NLdist(agents = patch(w1, 0, 0), agents2 = patch(w1, c(1, 9), c(1, 9)))
#> [1] 1.414214 12.727922
NLdist(agents = patch(w1, 0, 0), agents2 = patch(w1, c(1, 9), c(1, 9)),
world = w1, torus = TRUE)
#> [1] 1.414214 1.414214
t1 <- createTurtles(n = 2, coords = randomXYcor(w1, n = 2))
NLdist(agents = t1, agents2 = patch(w1, c(1,9), c(1,9)), allPairs = TRUE)
#> [,1] [,2]
#> [1,] 1.052697 11.909170
#> [2,] 4.761206 6.748793
```