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install.packages('ursa')

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494

Version

3.10.4

License

GPL (>= 2)

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Last Published

January 9th, 2024

Functions in ursa (3.10.4)

focal_median

Median spatial filter for image
global operator

Extract certains statistics for whole image
ursa-package

Overview
local_group

Create single-band raster using statistics of multi-bands raster.
local_stat

Bundle of statistics, which is applied to each cell of multi-band image.
band_group

Extract certain statistics of each band.
focal_mean

Low-pass spatial filter for image.
focal_extrem

Extremal spatial filter for image
focal_special

Custom spatial filtering for image
band_stat

Computes statistics for each band of raster.
groupGeneric

Group Generic Functions for raster image
colortable

Color Tables of raster images.
zonal_stat

Zonal statistics for raster maps
chunk

Get indices for partial image reading/writing
ursaGrid

Spatial parameters of raster images.
ursaRaster

Definition of ursaRaster class.
as.raster

Export raster object to a colored representation.
as.array

Export raster object to multidimensional array
ursaConnection

Connection of raster objects.
Replace

assign values to the portion of raster images
allocate

Rasterization of point data into grid cells
Extract

Extract portion of raster images
commonGeneric

Some generic functions for ursaRaster class.
close

Close connections for files with data
as.integer

Transform values to type integer
as.matrix

Convert raster image to a matrix
hist

Histogram of raster image
c

Combine bands into raster brick.
dim

Dimension of multiband raster image
sort

Sort multiband raster by band names.
bandname

Band names for raster image.
seq

Sequence Generation for raster image and coordinate grid
na.omit

Drop bands which don't have data.
head

Extract first and last bands of raster image
rep

Replicate bands of raster image.
ursaStack

List of raster images.
compose_panel

Plot raster images and decorations on the multipanel layout.
is.na

‘No data’ values for raster images.
compose_design

Organize multi-panel layout with images and color bars.
as.data.frame

Convert raster image to a data frame
as.table

Frequency of unique values
compose_open

Start displaying
codec

Reduce and restore dimenstions for sparse data matrix
plot

Simple display of raster images
compose_legend

Plot colorbars or marginal texts.
nband

Get number of bands of raster image.
summary

Summary of raster image.
ursaValue

Values of raster images.
ignorevalue

Extract and assign ‘nodata’ value of raster images.
open_gdal

Open GDAL file
compose_plot

Plot layout of images and color bars.
cubehelix

Generate "cubehelix" palette.
colorize

Create color table
envi_files

ENVI File Manipulation
read_gdal

Read GDAL supported raster files.
identify

Get value and coordinates from location
read_envi

Read ENVI .hdr Labelled Raster file to memory
discolor

Destroy color table for raster images.
display_rgb

Plot RGB (RGBA) color composition in the PNG format.
create_envi

Create ENVI or GDAL files on disk
display

Plot raster image(s) in the PNG format.
open_envi

open_envi file
legend_align

Align caption position for legend
compose_close

Finish plotting
display_stack

Plot multi-band heterogenous raster images in the PNG format.
display_brick

Plot multi-band homogenous raster image in the PNG format.
glance

Command line utility for spatial view of raster or vector GIS file.
as.Raster

Coercion to package 'raster' objects
write_gdal

Write raster image to GDAL file(s)
panel_graticule

Add latitude/longitude or metric grid to the image panel.
as_stars

Raster coercion to `stars`
panel_new

Start plotting on the new image panel
write_envi

Write raster image to ENVI .hdr Labelled Raster file.
panel_decor

Add auxiliary elements to the plotting panel.
panel_coastline

Add coastline to the image panel.
panel_contour

Add colored contour to the image panel
get_earthdata

Retrive data from Global Imagery Browse Services (GIBS) using API for Developers
legend_colorbar

Plot colorbar
legend_mtext

Write marginal text
ursaProgressBar

Progress bar
regrid

Change raster image resolution and extent
panel_plot

Add graphical elements to the image panel
panel_annotation

Add label or annotation to the image panel.
panel_raster

Add raster to the image panel
pixelsize

The actual size of each grid cell with considerable distortion in area of map projection.
panel_shading

Shaded overlay by image mask
panel_scalebar

Add scale bar to the image panel
reclass

Reclassify specific values of image
polygonize

Raster to vector (polygon) conversion.
segmentize

Create segmented line from points' sequence
spatial_levelsplit

Drops spatial object with overlapped geometry to spatial object with non-overlapped geometry.
temporal_interpolate

Fill gaps across bands using moving mean window
spatial_write

Wrapper functions for writing spatial objects.
ursa

Get and set properties of raster image.
temporal_mean

Smooth value across bands using moving mean window
spatial_read

Wrapper functions for reading spatial objects.
whiteboxing

Wrapper to WhiteboxTools
ursa_dummy

Generate raster image for examples.
session

Get and set sessional parameters for grid, CRS, external software for open PNG files.
ursa_crs

Extract and assign projection of raster images.
spatial_engine

Wrapper functions for manipulation with non-raster spatial objects
ursa_new

Create raster image in memory
as.ursa

Create raster image from R objects or GDAL raster files.
ursa_info

Print metadata for raster image.
ursa_grid

Extract and assign spatial parameters of raster images.
blank

Does any band contain no information?
ursa_crop

Crop 'no data' margins.
ursa_cache

Cache management of ursa package