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Bivariate histogram

`hist3(X)`

hist3(X,nbins)

hist3(X,ctrs)

hist3(X,'Edges',edges)

N = hist3(X,...)

[N,C] = hist3(X,...)

hist3(...,* param1*,

`val1`

`param2`

`val2`

`hist3(X)`

bins the elements of the *m*-by-2
matrix `X`

into a 10-by-10 grid of equally spaced
containers, and plots a histogram. Each column of ** X** corresponds
to one dimension in the bin grid.

`hist3(X,nbins)`

plots a histogram using
an `nbins(1)`

-by-`nbins(2)`

grid
of bins. `hist3(X,'Nbins',nbins)`

is equivalent to `hist3(X,nbins)`

.

`hist3(X,ctrs)`

, where `ctrs`

is
a two-element cell array of numeric vectors with monotonically non-decreasing
values, uses a 2-D grid of bins centered on `ctrs{1}`

in
the first dimension and on `ctrs{2}`

in the second. `hist3`

assigns
rows of `X`

falling outside the range of that grid
to the bins along the outer edges of the grid, and ignores rows of `X`

containing `NaN`

s. `hist3(X,'Ctrs',ctrs)`

is
equivalent to `hist3(X,ctrs)`

.

`hist3(X,'Edges',edges)`

, where `edges`

is
a two-element cell array of numeric vectors with monotonically non-decreasing
values, uses a 2-D grid of bins with edges at `edges{1}`

in
the first dimension and at `edges{2}`

in the second.
The (*i*, *j*)th bin includes the
value `X(k,:)`

if

edges{1}(i) <= X(k,1) < edges{1}(i+1) edges{2}(j) <= X(k,2) < edges{2}(j+1)

Rows of `X`

that fall on the upper edges of
the grid, `edges{1}(end)`

or `edges{2}(end)`

,
are counted in the `(I,j)`

th or `(i,J)`

th
bins, where `I`

and `J`

are the
lengths of `edges{1}`

and `edges{2}`

. `hist3`

does
not count rows of `X`

falling outside the range of
the grid. Use `-Inf`

and `Inf`

in `edges`

to
include all non-`NaN`

values.

`N = hist3(X,...)`

returns a matrix containing
the number of elements of `X`

that fall in each bin
of the grid, and does not plot the histogram.

`[N,C] = hist3(X,...)`

returns the positions
of the bin centers in a 1-by-2 cell array of numeric vectors, and
does not plot the histogram. `hist3(ax,X,...)`

plots
onto an `axes`

with handle `ax`

instead
of the current `axes`

. See the `axes`

reference page for more information
about handles to plots.

`hist3(...,`

allows
you to specify graphics parameter name/value pairs to fine-tune the
plot.* param1*,

`val1`

`param2`

`val2`

`accumarray`

| `bar`

| `bar3`

| `histc`

| `histogram`

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