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英文: How to use the dplyr library to select specific variables and then match a variable with a speci...
85dataframe
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英文: how to create a dataframe from two columns in r 问题 我有以下数据集： > data.frame(trait = c("Chol...
78dplyr
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英文: Extracting specific numeric values from long textual data (R) 问题 以下是从您提供的代码中提取的翻译部分： 我有一份在线职位广告的...
76database
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英文: How can I mutate data based on whether a string in R contains a specific value? 问题 For merging p...
64dataframe
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英文: How to rearrange 2 columns so that each combination of unique pairs is ordered by the first colu...
72dataframe
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英文: Dividing values based on a condition 问题 Here's a translation of the code part you provided: libr...
76dataframe
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英文: Loop function on timeseries works on small df, but not in large df - Error: C stack usage...too ...
105dplyr
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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...
137dataframe
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英文: How to group and combine data 问题 我无法合并数据框中的行。 我有这样的输入： element tool time disease AAK1 SE 12 SARS...
74dataframe
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英文: Difference between ifelse and if_else for conditionals returning NA 问题 以下是您要翻译的内容： "我搞不定这个。...
78dplyr
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85评论dataframe
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