1)分类空间数据(Classes for spatial data):包sp(cran.r-project.org/web/)为不同类型的空间数据设计了不同的类,如:点(points),栅格(grids),线(lines),环(rings),多边形(polygons)。另外sp提供总结数据,获取坐标等功能;提供画图函数,并且允许在图上添加空间元素(spatial elements)和参考元素(reference elements...
rc2 <- crop(r, extent(r, 5, 10, 7, 15)) # crop Raster* with Spatial* object b <- as(extent(6, 6.4, 49.75, 50), 'SpatialPolygons') crs(b) <- crs(r) rb <- crop(r, b) # crop a SpatialPolygon* object with another one if (require(rgdal) & require(rgeos)) { p <- ...
ThisbookisintendedforanyonewhowantstolearnhowtoefficientlyanalyzegeospatialdatawithR,includingGISanalysts,researchers,educators,andstudentswhoworkwithspatialdataandwhoareinterestedinexpandingtheircapabilitiesthroughprogramming.Thebookassumesfamiliaritywiththebasicgeographicinformationconcepts(suchasspatialcoordinates),butnoprior...
terrais anRpackage for spatial data analysis. There are tutorials atrspatial.org. Stack Overflowis a good place to ask questions if you get stuck. Make sure to include asimple reproducible example. But if you think you have found a bug, or if you want to request a new feature, please ...
UAVs provide manufacturing precision data for 3-Dimesional spatial analysis performed by GIS. Two dimensional orthophotos and three dimensional point clouds produced by UAV systems constitute a basis for the GIS related studies. In this study,......
This book will be of interest to researchers who intend to use R to handle, visualise, and analyse spatial data. It will also be of interest to spatial data analysts who do not use R, but who are interested in practical aspects of implementing software for spatial data analysis. It is a...
“This book constitutes a complete and accessible manual dedicated to the use of R forhandling spatial data. … the book will appeal equally to beginners and to experts in the field of spatial data analysis. … As a summary, I strongly recommend this book to any person who needs to study...
For more information seeCONTRIBUTING. Maintainers and contributors must follow this repository’sCODE OF CONDUCT. McGarigal K., SA Cushman, and E Ene. 2023. FRAGSTATS v4: Spatial Pattern Analysis Program for Categorical Maps. Computer software program produced by the authors; available at the follo...
Today the data has created the importance of all the information about the place, as well as the analysis, inquiries and visualizations made on this data, have great importance for the decision makers. During the presentation of the data of the space, it is possible to work with different pr...
· Many other tools and fields can be used for further analysis, e.g. filter for neater and more concise representation, tooltips for extra fields. Predictive models Spatial data can be used to build various predictive models, for example kernel density estimation (KDE), K nearest neighbour (...