Count the number of elements of a given matrix z=z(x,y) that fall within
successive pairs of breaks in x and y.

binCount2D(x, y, xbreaks, ybreaks, flatten = FALSE)

## Arguments

x |
vector of numerical values. |

y |
vector of numerical values. |

xbreaks |
Vector of values of `x` at the boundaries between bins, calculated using
[`pretty``]` (x)` if not supplied. |

ybreaks |
Vector of values of `y` at the boundaries between bins, calculated using
`pretty` `(y)` if not supplied. |

flatten |
A logical value indicating whether
the return value also contains equilength
vectors `x` , `y` , `z` and `n` , a flattened
representation of `xmids` , `ymids` , `result` and
`number` . |

## Value

A list with the following elements: the breaks (`xbreaks`

and `ybreaks`

), the midpoints (`xmids`

and `ymids`

)
between those breaks, and
the count (`number`

) of `f`

values in the boxes defined
between successive breaks.

## See also