R

用 R 下载 GBIF 数据

2020-02-10

R 程辑包 rgbif 可以非常方便地从 GBIF (Global Biodiversity Information Facility) 数据库中以物种、属、科等信息导出想要的数据。参见rgbif tutorial。 library(rgbif) library(dplyr) library(sf) library(spData) library(tmap) library(purrr)…

R

Map - based on Chapter 8 of Geocomputation with R

Bin Ye / 2019-07-03

Geocomputation with R: Chapter 8 - Making map with R teaches how to make maps with various packages with R. Most of the methods are easy to learn if you read this chapter carefully and try to use…

R

Summary-Geocomputation with R

2019-07-03

Geocomputation with R 的前七章是关于R运算地理数据的最基本概念、方法和示例。这里将这些基本章节中使用到的程辑包以及函数总结如下。 […] sf […] raster […] spData […] spDataLarge […] names() , summary() , class() […]…

R

Geocomputation with R - 07

2019-07-02

The Geographic data I/O is mainly about reading (inputing) and writing (outputing) geographic data. They are important steps for geocomputation. This chapter introducted a lot of methods to access the…

R

Geocomputation with R - 06

2019-07-01

The exercise solutions of Chapter 6 could be accessed at Chapter 6: Reprojecting geographic data. Here are solutions of mine explained in Chinese. 第六章 Reprojecting geographic data 详细讲述了地理数据对象的坐标参考…

R

Geocomputation with R - 05

2019-06-30

The exercise solutions of Chapter 5 could be accessed at Chapter 5: Geometric operations. Here are solutions of mine explained in Chinese. 第五章继续讲述如何处理矢量对象（sf对象）和栅格对象的地理数据，以及矢量和栅格之间的交互、相互转换等。详细请阅读原…