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hadley/r4ds
R4DS 2e; Chapter 17, Section 17.3.3 - Modifying components

I am learning R, and I have found r4ds to be invaluable, many thanks! In Section 17.3.3 Modifying components, you wrote: ...Alternatively, rather than modifying an existing variable, you can create a new ...
  • mikael-k-b
  • Opened 
    27 days ago
  • #1707

hadley/r4ds
Chapter 19 Joins (19.5.4 Overlap joins )

for the tibble parties defination: end = ymd(c( 2022-04-03 , 2022-07-11 , 2022-10-02 , 2022-12-31 )) Should the second date be 2022-07-10 , instead of 2022-07-11 ? I am reading the R for Data Science ...
  • dengzhiw
  • 1
  • Opened 
    on Feb 16
  • #1706

hadley/r4ds
r for ds

  • maicro24
  • Opened 
    on Feb 15
  • #1705

hadley/r4ds
19.5.3 Rolling joins

Hi , I think this picture is wrong. https://r4ds.hadley.nz/joins#fig-join-closest this is example code: library(dplyr) # 示例数据 df1 - tibble( time1 = c(1, 2, 3), value1 = c( A , B , C ) ) df2 ...
  • hanguojun007
  • Opened 
    on Feb 5
  • #1704

hadley/r4ds
Incorrect shortcut in 6.1.1

Instead of running your code expression-by-expression, you can also execute the complete script in one step with Cmd/Ctrl + Shift + S. correct shortcut: Ctrl + Alt + R or: Option + Command + R
  • ragweed4791
  • 1
  • Opened 
    on Jan 24
  • #1703

hadley/r4ds
dplyr::group_nest() is advised in Iteration chapter, but may become deprecated

In the Iteration chapter, dplyr::group_nest() is advised in order to restructure a data frame in such a way that rows represent the unique combinations of grouping variables and the remaining variables ...
  • florisvdh
  • Opened 
    on Jan 9
  • #1700

hadley/r4ds
Error in Code: 12.4.3 Logical subsetting

The code gives this error: Error in summarize(group_by(filter(flights, arr_delay 0), year, month, : argument by is missing, with no default
  • amir-tmbk
  • Opened 
    on Jan 5
  • #1699

hadley/r4ds
Error in Code : 12.4.2 Numeric summaries of logical vectors

the code gives this error: Error in summarize(group_by(flights, year, month, day), proportion_delayed = mean(dep_delay = : argument by is missing, with no default
  • amir-tmbk
  • Opened 
    on Jan 5
  • #1698

hadley/r4ds
Error in code:

in the section : 12.4.1 Logical summaries the code gives this error: Error in summarize(group_by(flights, day), all_delayed = all(dep_delay = : argument by is missing, with no default
  • amir-tmbk
  • Opened 
    on Jan 5
  • #1697

hadley/r4ds
Make your R tutorials interactive

Would it be helpful to add an interactive R compiler to your tutorials? Here’s an example iframe code that could easily be embedded to allow readers to run R scripts directly? iframe id= compiler1 width= ...
  • metricoder
  • Opened 
    on Dec 15, 2024
  • #1695
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