raster | R中的栅格操作符(上)[翻译] 本篇推文翻译自Manuel Gimond的在线教程Intro to GIS and Spatial Analysis的附录F Raster operations in R,网址为https://mgimond.github.io/Spatial/raster-operations-in-r.html。原教程遵循CC BY-NC 4.0共享协议(https://creativecommons.org/licenses/by-nc/4.0/deed...
This index takes advantage of the contrast of the characteristics of two bands from a multispectral raster dataset—the chlorophyll pigment absorptions in the red band and the high reflectivity of plant materials in the near-infrared (NIR) band. For more informationrmation, see NDVI func...
Calculates a magnitude-per-unit area from point or polyline features, using a kernel function to fit a smoothly tapered surface to each point or polyline. Spatial Analyst LandTrendr Analysis Evaluates changes in pixel values over time using the Landsat-based detection of trends in disturbance and...
For example, for a large raster (many cells), thedistance()function interracan take many days to run and even crashR, whereas infasterRaster, it could take just a few minutes or hours. ExportingGRasters andGVectors from aGRASSsession ...
shp2raster <- function(shp, mask.raster, label, value, transform = FALSE, proj.from = NA, proj.to = NA, map = TRUE) { require(raster, rgdal) # use transform==TRUE if the polygon is not in the same coordinate system as # the output raster, setting proj.from & proj.to to the...
surfaces were created, the datum for the 2004 bathymetric surfaces was transformed from WGS84 to NAD83 using the "Project Raster" function in ArcGIS 9.1... Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monit...
raster()是一个用于读取和处理栅格数据的函数,通常用于在R语言中进行空间数据分析。当尝试使用raster()函数读取文件时,有时可能会遇到文件未找到的错误。 这种错误通常表示指定的文件路径不正确或者文件不存在。可能的原因包括文件路径拼写错误、文件被移动或删除、文件格式不受支持等。
The Uber NYC Rasterizer application in our Dash Gallery provides a simple live demo of therasterlypackage in action. Check it outhere! A secondDash for Rapplication to visualize (a much larger) dataset from the US Census Bureau is alsoavailable....
Overview of the functions in the raster package
(răs′tər) n. A scanning pattern of parallel lines that form the image projected on a cathode-ray tube of a television set or display screen. [German, from Latinrāstrum,rake (from the resemblance of the parallel lines to a rake's path); seerēd-inIndo-European roots.] ...