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View Code? Open in Web Editor NEW这是一本中文 R 语言入门书,基于最新 tidyverse 包。
这是一本中文 R 语言入门书,基于最新 tidyverse 包。
感谢张老师对R语言资料的分享。张老师的R语言书籍,总结了常用的知识点和技巧,真的是良心之作。
ps: 书本2.7节(第200页),预计是笔误了(“将 case 列拆分为两列, 并删除原列”与“tstrsplit(DT$rate, split = "/")][,
rate := NULL]”中的字符,似乎没有统一符号)。
DT = as.data.table(table3)
DT[, c("cases", "population") := tstrsplit(DT$rate, split = "/")][, rate := NULL]
I can't download any PDF in "intoR"
同时修改列名的方法:
my_summarise = function(data, mean_var, sd_var) { data %>% summarise("mean_{{mean_var}}" := mean({{mean_var}}), "sd_{{sd_var}}" := mean({{sd_var}})) }
应该是
my_summarise = function(data, mean_var, sd_var) { data %>% summarise("mean_{{mean_var}}" := mean({{mean_var}}), "sd_{{sd_var}}" := sd({{sd_var}})) }
第二列应该想求的是SD
张老师好,
读了下公开的这本书的部分,觉得很受益,之前学R的零碎的一些技巧自己也有感悟,很好的一本书。请问出版日期还要往后吗,可否付费购买纸质打印版本自己学习呢。
十分感谢!
这是我见过关于tidyverse书籍中最好的, 可以说是天花板了(忍不住评论)!
百度找到的关于R语言编程的, 基本上都"沿用那些过时的、晦涩的R 语法".
tidyverse非常整洁、优雅, 但是相关书籍太少, 目前看过的就《R数据科学》,但是没有本书讲的详细,而且作者你还加入了自己“独到的理解体会”
谢谢作者, 期待后续章节的更新!!!
张老师您好,看您的课件像是Rmd转出来的,能否共享上相关的Rmd文件。感谢!
一直在关注,可我看着不更新了呀,其实R包更新快速,在网络上发布更新才是理想的方式。
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