alex_bn_lee

摘要： ref: [R字符串] 字符串长度、分割、拼接、截取、替代、匹配和大小写替换 ref: R String Manipulation Functions 1. nchar() With the help of this function, we can count the characters. Th 阅读全文

摘要： ref: R语言data.frame常用操作 ref: Keep rows that match a condition The filter() function is used to subset a data frame, retaining all rows that satisfy you 阅读全文

摘要： Ref: From WKT format Firstly, we already have a dataframe, and there is a column of geometry. But this column is in the format of the string, therefor 阅读全文

摘要： 参考：自定义颜色条教程 import matplotlib as mpl cmap = mpl.colors.ListedColormap(['yellow', '#E0E0E0']) africa_gdf.plot(column='hotspot_category', cmap=cmap, leg 阅读全文