subset

英文: Finding Subset of Polygon centroids Which Are Within A Certain Distance of the Centroids of Othe...

英文: How to index a function list output for use in another function? 问题 我正在使用lapply()来处理一个包含2个文件的列表，...

英文: subset a matrix by a expression with a column name 问题 如何在列名（b）必须在表达式中的情况下，实现以下矩阵的操作？ subset(data...

英文: Trying to subset and/or filter (essentially separate) a data frame object which has already been...

英文: How can I iterate through a list of dictionaries and extract a subset of values in Python using ...

英文: How to filter a dataframe in R but also get the row before and after the filter 问题 现在我的问题是，值不总是匹...

英文: R selecting rows and columns 问题 Sure, here are the translated parts: 第一部分：我想要找到所有包含字符串M的列，并将列名存储...

英文: Subset data frame in R and name each subset in the loop 问题 我正在尝试使用列中的一组唯一值对数据框进行子集操作，并根据该唯一值为每个子...

英文: How to subset duplicates on the earliest date among a group? 问题 我有一个包含多个个体（`id`）的`data.frame`。之前...

英文: Filter numbers that are closest to target values and eliminate duplicated observations 问题 以下是翻译好...