6.2.2 pivot_wider () pivot_wider () 是 pivot_longer () 的逆操作，虽然在获得 tidy data 上，前者没有后者常用，但它经常被用来创建一些 summary table。. 关于 pivot_wider () ，很重要的一点是它会暴露出数据中的隐式缺失值 (implicit missing value)。. 这些没有出现在原数据中的 NA 值不
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I would suggest using the tidyverse package to do this work, and the spread or pivot_wider functions from the tidyr package. Suppose your data is in a data.frame called "dat": Suppose your data is in a data.frame called "dat":
1 Answer. An option is to loop through the 'dataBatting', 'dataPitching' column names, do the unnest_wider separately, unnest the columns of interest, and bind the rows together ( map_dfr - suffix 'dfr' returns dataframe with rows binded together from a list of data.frames of tibble s). One thing that should be noted is that many of the
df %>% pivot_longer(-c(ID, Date_First_test, Date_second_test, Date_third_test), names_to = "test", values_to = "hemoglobin") Whilst this part works, I want one date for each test in one column. However, I want to be even more sophisticated and rather than use the date itself, use the relative admission day.
I have a dataset that looks like the first image and I want to make it look like the second image. I can pivot_longer by either age or speed, but not both at the same top is original, bottom is what I want to pivot to
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how to use pivot_longer in r
