Example 2: Provide NA values by recodifying a single column in a data frame. A single column in a data frame can be recoded using the code below, which also assigns a value of NA to any values that are not expr
r-cran-httpcode/ 2020-07-10 21:50 - r-cran-httptest2/ 2024-07-19 07:17 - r-cran-httpuv/ 2024-05-09 16:58 - r-cran-httr/ 2023-10-27 03:36 - r-cran-httr2/ 2025-03-14 07:17 - r-cran-huge/ 2024-05-09 16:58 - ...
These numbers can be from 1 to 20. Other values cause errors or are reserved for special purposes by RCodePlus. To reference an array by variable name, simply assign the number (1 to 20) to a valid RCode variable. The numeric array reference business can be slightly confusing at first....
建议顺便再勾选Code -> Display下的Rainbow parentheses选项,这样代码中的配对括号将用不同颜色匹配。 另外,还建议在General -> Workspace菜单下取消勾选“Restore .RData into workspace at startup”,并将其下的“save workspace to .RData on exit:”改为“Never.”,这可以避免每次打开RStudio都加载之前的内存...
# 其它函数:read.fastq可下载、读取Fastq;read.GenBank;read.gff;as.DNAbin;dist.dna;clustal/muscle(多序列比对) # dnds dN/dS Ratio # dnds(ex.dna, code = 1, codonstart = 1, quiet = FALSE, details = FALSE, return.categories = FALSE) # Error: sequences are not unique # data(woodmouse...
,我们使用包rio中的import()函数导入“raw” case linelist Excel 文件。rio包可以灵活处理多种类型的文件(例如 .xlsx、.csv、.tsv、.rds。有关异常情况的更多信息和提示,请参见导入和导出页面(例如,跳过行、设置缺失值、导入 Google 表格) , 等等)。
Children[cph](https://steinhardt.nyu.edu/ihdsc/global-ties)Maintainer Patrick Anker<***> Repository CRAN Date/Publication2023-10-0608:30:05UTC R topics documented:assign_coding (2)as_coding_list (3)code (3)coding (4)coding_to_haven_labels (5)coding_to_odk (5)1 ...
longer时，行将被展开。如果我们想一次对每个键/值对在一个步骤中完成这一操作，可以选择to_long ...
De-duplication（去重）Column creation and transformation (e.g. re-coding or standardising values)（...
问标准化色标，面板中的persp()图，REN数据标准化，是将数据按比例缩放，使之落入到特定区间，一般我们...