Report the individuals among turtles
that are located on the patches
at
(dx, dy)
distances of the agents
.
turtlesAt(world, turtles, agents, dx, dy, breed, torus = FALSE) # S4 method for worldNLR,agentMatrix,matrix,numeric,numeric,missing turtlesAt(world, turtles, agents, dx, dy, torus) # S4 method for worldNLR,agentMatrix,matrix,numeric,numeric,character turtlesAt(world, turtles, agents, dx, dy, breed, torus = FALSE)
world 


turtles 

agents  Matrix (

dx  Numeric. Vector of distances to the east (right) from the 
dy  Numeric. Vector of distances to the north (up) from the 
breed  Characters. Vector of 
torus  Logical to determine if the 
AgentMatrix
representing the individuals among turtles
of any of the given breed
, if specified,
which are located on the patches
at (dx, dy)
distances of the
agents
.
If the patch
at distance (dx, dy)
of an agent
is outside of the world
's extent and torus = FALSE
,
no turtle
is returned;
if torus = TRUE
, the turtle
located on the patch
whose coordinates
are defined from the wrapped world
is returned.
Wilensky, U. 1999. NetLogo. http://ccl.northwestern.edu/netlogo/. Center for Connected Learning and ComputerBased Modeling, Northwestern University. Evanston, IL.
https://ccl.northwestern.edu/netlogo/docs/dictionary.html#turtlesat
https://ccl.northwestern.edu/netlogo/docs/dictionary.html#atpoints
w1 < createWorld(minPxcor = 0, maxPxcor = 9, minPycor = 0, maxPycor = 9) t1 < createTurtles(n = 10, coords = cbind(xcor = 0:9, ycor = 0:9), breed = c(rep("sheep", 5), rep("wolf", 5))) t2 < turtlesAt(world = w1, turtles = t1, agents = turtle(t1, who = 0), dx = 1, dy = 1) t3 < turtlesAt(world = w1, turtles = t1, agents = patch(w1, c(3,4,5), c(3,4,5)), dx = 1, dy = 1, breed = "sheep")