Struct sampling::heatmap::HeatmapUsize
source · pub struct HeatmapUsize<HistWidth, HistHeight> { /* private fields */ }
Expand description
Heatmap
- stores heatmap in row-major order: the rows of the heatmap are contiguous, and the columns are strided
- enables you to quickly create a heatmap
- you can create gnuplot scripts to plot the heatmap
- you can transpose the heatmap
- …
Implementations§
source§impl<HistWidth, HistHeight> HeatmapUsize<HistWidth, HistHeight>
impl<HistWidth, HistHeight> HeatmapUsize<HistWidth, HistHeight>
sourcepub fn transpose(&self) -> HeatmapUsize<HistHeight, HistWidth>
pub fn transpose(&self) -> HeatmapUsize<HistHeight, HistWidth>
Use this to get a “flipped” heatmap
- creates a transposed heatmap
- also look at
self.transpose_inplace
source§impl<HistWidth, HistHeight> HeatmapUsize<HistWidth, HistHeight>
impl<HistWidth, HistHeight> HeatmapUsize<HistWidth, HistHeight>
sourcepub fn transpose_inplace(self) -> HeatmapUsize<HistHeight, HistWidth>
pub fn transpose_inplace(self) -> HeatmapUsize<HistHeight, HistWidth>
Use this to get a “flipped” heatmap
- transposes the heatmap inplace
sourcepub fn get(&self, x: usize, y: usize) -> Option<usize>
pub fn get(&self, x: usize, y: usize) -> Option<usize>
Returns value stored in the heatmap at specified
coordinates, or None
, if out of Bounds
sourcepub fn get_row(&self, y: usize) -> Option<&[usize]>
pub fn get_row(&self, y: usize) -> Option<&[usize]>
row of the heatmap
None
if out of bounds- otherwise it is a slice of the row at height
y
Note
- there is no
get_column
method, because, due to implementation details, it is way less efficient, and could not be returned as slice
sourcepub unsafe fn get_unchecked(&self, x: usize, y: usize) -> usize
pub unsafe fn get_unchecked(&self, x: usize, y: usize) -> usize
Returns value stored in the heatmap at specified coordinates without performing bound checks.
Safety
undefined behavior if coordinates are out of bounds
sourcepub fn width(&self) -> usize
pub fn width(&self) -> usize
returns width of the heatmap
- the width is the same size, as the
self.width_projection().bin_count()
sourcepub fn height(&self) -> usize
pub fn height(&self) -> usize
returns height of the heatmap
- the height is the same size, as the
self.height_projection().bin_count()
sourcepub fn width_hist(&self) -> &HistWidth
pub fn width_hist(&self) -> &HistWidth
Returns reference to current width Histogram
- histogram used to bin in the “width” direction
- all
counts
are counted here -> this is a projection of the heatmap
sourcepub fn height_hist(&self) -> &HistHeight
pub fn height_hist(&self) -> &HistHeight
Returns reference to current height Histogram
- histogram used to bin in the “height” direction
- all
counts
are counted here -> this is a projection of the heatmap
source§impl<HistWidth, HistHeight> HeatmapUsize<HistWidth, HistHeight>
impl<HistWidth, HistHeight> HeatmapUsize<HistWidth, HistHeight>
sourcepub fn new(width_hist: HistWidth, height_hist: HistHeight) -> Self
pub fn new(width_hist: HistWidth, height_hist: HistHeight) -> Self
Create a new Heatmap
- heatmap will have width
width_hist.bin_count()
and heightheight_hist.bin_count()
- histograms will be reset (zeroed) here, so it does not matter, if they were used before and contain Data
sourcepub fn reset(&mut self)
pub fn reset(&mut self)
Reset
- resets histograms
- heatmap is reset to contain only 0’s
- miss_count is reset to 0
sourcepub fn combine<OtherHW, OtherHH>(
&mut self,
other: &HeatmapUsize<OtherHW, OtherHH>
) -> Result<(), HeatmapError>
pub fn combine<OtherHW, OtherHH>( &mut self, other: &HeatmapUsize<OtherHW, OtherHH> ) -> Result<(), HeatmapError>
“combine” heatmaps
- heatmaps will be combined by adding all entrys of
other
toself
- heatmaps have to have the same dimensions
sourcepub fn total(&self) -> usize
pub fn total(&self) -> usize
counts how often the heatmap was hit
- should be equal to
self.heatmap.iter().sum::<usize>()
but more efficient - Note: it calculates this in O(min(self.width, self.height))
sourcepub fn total_misses(&self) -> usize
pub fn total_misses(&self) -> usize
sourcepub fn heatmap(&self) -> &Vec<usize>
pub fn heatmap(&self) -> &Vec<usize>
returns heatmap
- each vector entry will contain the number of times, the corresponding bin was hit
- an entry is 0 if it was never hit
Access indices; understanding how the data is mapped
- A specific heatmap location
(x,y)
corresponds to the indexy * self.width() + x
- you can use the
heatmap_index
function to calculate the index
sourcepub fn vec_normalized(&self) -> Vec<f64>
pub fn vec_normalized(&self) -> Vec<f64>
returns Vector representing normalized heatmap
- Vector contains only 0.0, if nothing was in the heatmap
- otherwise the sum of this Vector is 1.0 (or at least very close to 1.0)
Access indices; understanding how the data is mapped
- A specific heatmap location (x,y)
corresponds to the index
y * self.width() + x
- you can use the function
heatmap_index(width, x, y)
for calculating the index
sourcepub fn heatmap_normalized(&self) -> HeatmapF64<HistWidth, HistHeight>
pub fn heatmap_normalized(&self) -> HeatmapF64<HistWidth, HistHeight>
returns normalized heatmap
- returns normalized heatmap as
HeatmapF64
- Heatmap vector
self.heatmap_normalized().heatmap()
contains only 0.0, if nothing was in the heatmap - otherwise the sum of this Vector is 1.0 (within numerical errors)
sourcepub fn into_heatmap_normalized(self) -> HeatmapF64<HistWidth, HistHeight>
pub fn into_heatmap_normalized(self) -> HeatmapF64<HistWidth, HistHeight>
returns normalized heatmap
- returns normalized heatmap as
HeatmapF64
- Heatmap vector
self.heatmap_normalized().heatmap()
contains only 0.0, if nothing was in the heatmap - otherwise the sum of this Vector is 1.0 (within numerical errors)
sourcepub fn vec_normalized_columns(&self) -> Vec<f64>
pub fn vec_normalized_columns(&self) -> Vec<f64>
returns vector representing heatmap, normalized column wise
- Vector contains only 0.0, if nothing was in the heatmap
- otherwise the sum of each column (fixed x) will be 1.0 (within numerical errors), if it contained at least one hit. If it did not, the column will only consist of 0.0
Access indices; understanding how the data is mapped
A specific heatmap location (x,y)
corresponds to the index y * self.width() + x
- you can use the function
heatmap_index(width, x, y)
for calculating the index
sourcepub fn heatmap_normalized_columns(&self) -> HeatmapF64<HistWidth, HistHeight>
pub fn heatmap_normalized_columns(&self) -> HeatmapF64<HistWidth, HistHeight>
returns (column wise) normalized heatmap
- returns normalized heatmap as
HeatmapF64
- Heatmap vector
self.heatmap_normalized().heatmap()
contains only 0.0, if nothing was in the heatmap - otherwise the sum of each column (fixed x) will be 1.0 (within numerical errors), if it contained at least one hit. If it did not, the column will only consist of 0.0
- otherwise the sum of this Vector is 1.0
sourcepub fn into_heatmap_normalized_columns(
self
) -> HeatmapF64<HistWidth, HistHeight>
pub fn into_heatmap_normalized_columns( self ) -> HeatmapF64<HistWidth, HistHeight>
returns (column wise) normalized heatmap
- returns normalized heatmap as
HeatmapF64
- Heatmap vector
self.heatmap_normalized().heatmap()
contains only 0.0, if nothing was in the heatmap - otherwise the sum of each column (fixed x) will be 1.0 (within numerical errors), if it contained at least one hit. If it did not, the column will only consist of 0.0
- otherwise the sum of this Vector is 1.0
sourcepub fn vec_normalized_rows(&self) -> Vec<f64>
pub fn vec_normalized_rows(&self) -> Vec<f64>
returns vector representing heatmap, normalized row wise
- Vector contains only 0.0, if nothing was in the heatmap
- otherwise the sum of each row (fixed x) will be 1.0 (within numerical errors), if it contained at least one hit. If it did not, the row will only consist of 0.0
Access indices; understanding how the data is mapped
A specific heatmap location (x,y)
corresponds to the index y * self.width() + x
- you can use the function
heatmap_index(width, x, y)
for calculating the index
sourcepub fn heatmap_normalized_rows(&self) -> HeatmapF64<HistWidth, HistHeight>
pub fn heatmap_normalized_rows(&self) -> HeatmapF64<HistWidth, HistHeight>
returns (row wise) normalized heatmap
- returns normalized heatmap as
HeatmapF64
- Heatmap vector
self.heatmap_normalized().heatmap()
contains only 0.0, if nothing was in the heatmap - otherwise the sum of each row (fixed x) will be 1.0 (within numerical errors), if it contained at least one hit. If it did not, the row will only consist of 0.0
- otherwise the sum of this Vector is 1.0
sourcepub fn into_heatmap_normalized_rows(self) -> HeatmapF64<HistWidth, HistHeight>
pub fn into_heatmap_normalized_rows(self) -> HeatmapF64<HistWidth, HistHeight>
returns (row wise) normalized heatmap
- returns normalized heatmap as
HeatmapF64
- Heatmap vector
self.heatmap_normalized().heatmap()
contains only 0.0, if nothing was in the heatmap - otherwise the sum of each row (fixed x) will be 1.0 (within numerical errors), if it contained at least one hit. If it did not, the row will only consist of 0.0
- otherwise the sum of this Vector is 1.0
sourcepub fn count_multiple<A, B, X, Y, I>(
&mut self,
width_val_iter: I,
height_val: B
) -> Result<usize, HeatmapError>where
HistWidth: HistogramVal<X>,
HistHeight: HistogramVal<Y>,
A: Borrow<X>,
B: Borrow<Y>,
I: Iterator<Item = A>,
pub fn count_multiple<A, B, X, Y, I>(
&mut self,
width_val_iter: I,
height_val: B
) -> Result<usize, HeatmapError>where
HistWidth: HistogramVal<X>,
HistHeight: HistogramVal<Y>,
A: Borrow<X>,
B: Borrow<Y>,
I: Iterator<Item = A>,
update the heatmap
- calculates the coordinates
(x, y)
of the bin corresponding to the given values pair(width_iter_entry, height_val)
- as soon as a coordinate is encountered that is out of bounds, it counts a “miss” and returns the HeatmapError, aborting further execution
- otherwise it counts the “hits” and returns the total number of hits added
usize
sourcepub fn count<A, B, X, Y>(
&mut self,
width_val: A,
height_val: B
) -> Result<(usize, usize), HeatmapError>
pub fn count<A, B, X, Y>( &mut self, width_val: A, height_val: B ) -> Result<(usize, usize), HeatmapError>
update the heatmap
- calculates the coordinate
(x, y)
of the bin corresponding to the given value pair(width_val, height_val)
- if coordinate is out of bounds, it counts a “miss” and returns the HeatmapError
- otherwise it counts the “hit” and returns the coordinate
(x, y)
sourcepub fn write_to<W>(&self, data_file: W) -> Result<()>where
W: Write,
pub fn write_to<W>(&self, data_file: W) -> Result<()>where
W: Write,
Write heatmap to file
- writes data of heatmap to file.
file
- lets assume
self.width()
is 4 andself.height()
is 3 - the resulting file could look like
0 1 0 10
100 0 0 1
2 9 1 0
sourcepub fn gnuplot_quick<W>(&self, writer: W) -> Result<()>where
W: Write,
pub fn gnuplot_quick<W>(&self, writer: W) -> Result<()>where
W: Write,
Create a gnuplot script to plot your heatmap
writer
: The gnuplot script will be written to thisgnuplot_output_name
: how shall the file, created by executing gnuplot, be called? Ending of file will be set automatically
Note
- This is the same as calling
gnuplot
with defaultGnuplotSettings
- The default axis are the bin indices, which, e.g, means they always begin at 0. You have to set the axis via the GnuplotSettings
sourcepub fn gnuplot<W, GS>(&self, gnuplot_writer: W, settings: GS) -> Result<()>
pub fn gnuplot<W, GS>(&self, gnuplot_writer: W, settings: GS) -> Result<()>
Create a gnuplot script to plot your heatmap
This function writes a file, that can be plotted via the terminal via gnuplot
gnuplot gnuplot_file
Parameter:
gnuplot_writer
: writer gnuplot script will be written tognuplot_output_name
: how shall the file, created by executing gnuplot, be called? Ending of file will be set automaticallysettings
: Here you can set the axis, choose between terminals and more. I recommend that you take a look at GnuplotSettings
Note
The default axis are the bin indices, which, e.g, means they always begin at 0. You have to set the axis via the GnuplotSettings
Example
use rand_pcg::Pcg64;
use rand::{SeedableRng, distributions::*};
use sampling::*;
use std::fs::File;
use std::io::BufWriter;
// first randomly create a heatmap
let h_x = HistUsizeFast::new_inclusive(0, 10).unwrap();
let h_y = HistU8Fast::new_inclusive(0, 10).unwrap();
let mut heatmap = HeatmapU::new(h_x, h_y);
heatmap.count(0, 0).unwrap();
heatmap.count(10, 0).unwrap();
let mut rng = Pcg64::seed_from_u64(27456487);
let x_distr = Uniform::new_inclusive(0, 10_usize);
let y_distr = Uniform::new_inclusive(0, 10_u8);
for _ in 0..100000 {
let x = x_distr.sample(&mut rng);
let y = y_distr.sample(&mut rng);
heatmap.count(x, y).unwrap();
}
// create File for gnuplot script
let file = File::create("heatmap.gp").unwrap();
let buf = BufWriter::new(file);
// Choose settings for gnuplot
let mut settings = GnuplotSettings::new();
settings.x_axis(GnuplotAxis::new(-5.0, 5.0, 6))
.y_axis(GnuplotAxis::from_slice(&["a", "b", "c", "d"]))
.y_label("letter")
.x_label("number")
.title("Example")
.terminal(GnuplotTerminal::PDF("heatmap".to_owned()));
// create gnuplot script
heatmap.gnuplot(
buf,
settings
).unwrap();
gnuplot script can now be plotted with
gnuplot heatmap.gp
Trait Implementations§
source§impl<HistWidth: Clone, HistHeight: Clone> Clone for HeatmapUsize<HistWidth, HistHeight>
impl<HistWidth: Clone, HistHeight: Clone> Clone for HeatmapUsize<HistWidth, HistHeight>
source§fn clone(&self) -> HeatmapUsize<HistWidth, HistHeight>
fn clone(&self) -> HeatmapUsize<HistWidth, HistHeight>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl<'de, HistWidth, HistHeight> Deserialize<'de> for HeatmapUsize<HistWidth, HistHeight>where
HistWidth: Deserialize<'de>,
HistHeight: Deserialize<'de>,
impl<'de, HistWidth, HistHeight> Deserialize<'de> for HeatmapUsize<HistWidth, HistHeight>where
HistWidth: Deserialize<'de>,
HistHeight: Deserialize<'de>,
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
source§impl<HistWidth, HistHeight> From<HeatmapUsize<HistWidth, HistHeight>> for HeatmapF64<HistWidth, HistHeight>
impl<HistWidth, HistHeight> From<HeatmapUsize<HistWidth, HistHeight>> for HeatmapF64<HistWidth, HistHeight>
source§impl<HistWidth, HistHeight> Serialize for HeatmapUsize<HistWidth, HistHeight>
impl<HistWidth, HistHeight> Serialize for HeatmapUsize<HistWidth, HistHeight>
Auto Trait Implementations§
impl<HistWidth, HistHeight> RefUnwindSafe for HeatmapUsize<HistWidth, HistHeight>where
HistHeight: RefUnwindSafe,
HistWidth: RefUnwindSafe,
impl<HistWidth, HistHeight> Send for HeatmapUsize<HistWidth, HistHeight>
impl<HistWidth, HistHeight> Sync for HeatmapUsize<HistWidth, HistHeight>
impl<HistWidth, HistHeight> Unpin for HeatmapUsize<HistWidth, HistHeight>
impl<HistWidth, HistHeight> UnwindSafe for HeatmapUsize<HistWidth, HistHeight>where
HistHeight: UnwindSafe,
HistWidth: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
§impl<S, T> Cast<T> for Swhere
T: Conv<S>,
impl<S, T> Cast<T> for Swhere
T: Conv<S>,
§impl<S, T> CastApprox<T> for Swhere
T: ConvApprox<S>,
impl<S, T> CastApprox<T> for Swhere
T: ConvApprox<S>,
§fn try_cast_approx(self) -> Result<T, Error>
fn try_cast_approx(self) -> Result<T, Error>
§fn cast_approx(self) -> T
fn cast_approx(self) -> T
§impl<S, T> CastFloat<T> for Swhere
T: ConvFloat<S>,
impl<S, T> CastFloat<T> for Swhere
T: ConvFloat<S>,
§fn cast_trunc(self) -> T
fn cast_trunc(self) -> T
Cast to integer, truncating Read more
§fn cast_nearest(self) -> T
fn cast_nearest(self) -> T
Cast to the nearest integer Read more
§fn cast_floor(self) -> T
fn cast_floor(self) -> T
Cast the floor to an integer Read more
§fn try_cast_trunc(self) -> Result<T, Error>
fn try_cast_trunc(self) -> Result<T, Error>
Try converting to integer with truncation Read more
§fn try_cast_nearest(self) -> Result<T, Error>
fn try_cast_nearest(self) -> Result<T, Error>
Try converting to the nearest integer Read more
§fn try_cast_floor(self) -> Result<T, Error>
fn try_cast_floor(self) -> Result<T, Error>
Try converting the floor to an integer Read more
§fn try_cast_ceil(self) -> Result<T, Error>
fn try_cast_ceil(self) -> Result<T, Error>
Try convert the ceiling to an integer Read more