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Install

install.packages('ursa')

Monthly Downloads

221

Version

3.9.2

License

GPL (>= 2)

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Maintainer

Nikita Platonov

Last Published

December 9th, 2020

Functions in ursa (3.9.2)

band_group

Extract certain statistics of each band.
band_stat

Computes statistics for each band of raster.
focal_median

Median spatial filter for image
local_stat

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

Low-pass spatial filter for image.
focal_special

Custom spatial filtering for image
global operator

Extract certains statistics for whole image
ursa-package

Overview
focal_extrem

Extremal spatial filter for image
local_group

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

Zonal statistics for raster maps
chunk

Get indices for partial image reading/writing
colortable

Color Tables of raster images.
groupGeneric

Group Generic Functions for raster image
Replace

assign values to the portion of raster images
ursaConnection

Connection of raster objects.
ursaGrid

Spatial parameters of raster images.
as.data.frame

Convert raster image to a data frame
as.array

Export raster object to multidimensional array
bandname

Band names for raster image.
na.omit

Drop bands which don't have data.
as.table

Frequency of unique values
allocate

Rasterization of point data into grid cells
as.raster

Export raster object to a colored representation.
hist

Histogram of raster image
head

Extract first and last bands of raster image
plot

Simple display of raster images
c

Combine bands into raster brick.
close

Close connections for files with data
commonGeneric

Some generic functions for ursaRaster class.
Extract

Extract portion of raster images
rep

Replicate bands of raster image.
ursaRaster

Definition of ursaRaster class.
compose_close

Finish plotting
as.integer

Transform values to type integer
ursaStack

List of raster images.
ursaValue

Values of raster images.
seq

Sequence Generation for raster image and coordinate grid
as.matrix

Convert raster image to a matrix
discolor

Destroy color table for raster images.
compose_panel

Plot raster images and decorations on the multipanel layout.
compose_design

Organize multi-panel layout with images and color bars.
dim

Dimension of multiband raster image
create_envi

Create ENVI or GDAL files on disk
display

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

Reduce and restore dimenstions for sparse data matrix
summary

Summary of raster image.
read_gdal

Read GDAL supported raster files.
ignorevalue

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

Create color table
identify

Get value and coordinates from location
write_envi

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

Generate "cubehelix" palette.
write_gdal

Write raster image to GDAL file(s)
get_earthdata

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

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

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

open_envi file
panel_plot

Add graphical elements to the image panel
compose_plot

Plot layout of images and color bars.
as.Raster

Coercion to package 'raster' objects
legend_mtext

Write marginal text
glance

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

Add raster to the image panel
is.na

‘No data’ values for raster images.
legend_colorbar

Plot colorbar
legend_align

Align caption position for legend
panel_graticule

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

Start plotting on the new image panel
compose_legend

Plot colorbars or marginal texts.
open_gdal

Open GDAL file
compose_open

Start displaying
display_stack

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

Get number of bands of raster image.
read_envi

Read ENVI .hdr Labelled Raster file to memory
panel_annotation

Add label or annotation to the image panel.
panel_coastline

Add coastline to the image panel.
envi_files

ENVI File Manipulation
panel_contour

Add colored contour to the image panel
ursaProgressBar

Progress bar
reclass

Reclassify specific values of image
regrid

Change raster image resolution and extent
panel_decor

Add auxiliary elements to the plotting panel.
polygonize

Raster to vector (polygon) conversion.
pixelsize

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

Smooth value across bands using moving mean window
ursa

Get and set properties of raster image.
ursa_grid

Extract and assign spatial parameters of raster images.
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.
panel_shading

Shaded overlay by image mask
panel_scalebar

Add scale bar to the image panel
temporal_interpolate

Fill gaps across bands using moving mean window
spatial_read

Wrapper functions for reading spatial objects.
spatial_engine

Wrapper functions for manipulation with non-raster spatial objects
spatial_write

Wrapper functions for writing spatial objects.
blank

Does any band contain no information?
as.ursa

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

Print metadata for raster image.
ursa_cache

Cache management of ursa package
ursa_new

Create raster image in memory
ursa_crop

Crop 'no data' margins.