rtGetFromGrid: to access population data from the grid of [x,y,sex,age]
In AndySouth/rtsetse: simulating tsetse fly populations

Description Usage Arguments Value Examples

NOT USED YET. I might not even need it. rtGetFromRecord() likely to be more useful. rtGetFromGrid allows access to population data from a grid of sexes and ages. You can specify which [x,y,sex,age] you want to get data for. Each variable defaults to 'all' so rtGetFromGrid(aGrid) would return the whole grid. ='sum' can be used to sum across dimensions, thus rtGetFromGrid(aGrid,x='sum',y='sum',sex='sum',age='sum') would produce a single value of the total population on the grid.

1	rtGetFromGrid(aGrid, y = "all", x = "all", sex = "all", age = "all")

`aGrid`	an array with the age distributions of males & females [y,x,sex,age]
`y`	grid row number
`x`	grid column number
`sex`	'all' returns both sexes separately,'M','F', 'sum' sums sexes
`age`	'all' returns age distribution, 'sum' sums all ages, or an integer age ?or maybe an age range too

an array, matrix or vector named with remaining dimensions of [y,x,sex,age]

tst <- rt_runGrid()
aGrid <- tst['day2',,,,]
rtGetFromGrid(aGrid,x='sum',y='sum',sex='sum') #age structure for whole pop
rtGetFromGrid(aGrid,x='sum',y='sum',age='sum') #sex ratio for whole pop
#slight anomally this gives 4 grids
rtGetFromGrid(aGrid,x='all',y='all',age=c(1,2),sex='all')
#this gives just 1
rtGetFromGrid(aGrid,x='all',y='all',age=c(1,2),sex='sum')