Adding the section corrections (after dealing with the previous issues) to the main branch---only the section established there.

Play

• 面对对象的编程语言一节，感觉结构和目的不是很清楚，是否需要修改？

drhur provides a novel theorem of R programming pedagogy, i.e., the 3C theorem:

Content, capability, and confidence.

Finding a webserver for images of the tutorials.

When compiling the text chapters, e.g., drhur("classify", lang = "en"), stop at

The error only appears when running the drhur command. There's no problem compiling the tutorial by isolatedly running the rmd file.

For further reference, if users do drhur("visualize") and terminal echos

package 'ggradar' is not available for this version of R

ggradar is not a package published on CRAN, it can be installed via devtools:

install.packages("devtools")
devtools::install_github("ricardo-bion/ggradar", dependencies=TRUE)

Yufei @syfyufei and Yezi @xinyigua , please add the codes mentioned in the lectures to the summary section

Where can I see the input parameters available for drhur please? For example 'efa', which is not written in the documentation.

uiowa_pallette
ksplot
fitPage
roster_grouping
custom_tidy for polr
the title wrapper function from bschneidr

Give more systemic apply cases in loop_cn, illustrating the difference among *apply and relations with the apply. @syfyufei

NB: Don't use regression as the example. Better use an example used in the previous lecture