Hi Kevin,
Thank you for your advice. I tried the commands, but there is still a warning message as below - "there is no package called 'htmlwidgets'". Do you have any advice?
> install.packages("Seurat")
Installing package into ‘C:/Users/jongshin.kim/Documents/R/win-library/3.6’ (as ‘lib’ is unspecified) trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.6/Seurat_3.1.1.zip' Content type 'application/zip' length 2166182 bytes (2.1 MB) downloaded 2.1 MB
package ‘Seurat’ successfully unpacked and MD5 sums checked
The downloaded binary packages are in C:\Users\jongshin.kim\AppData\Local\Temp\RtmpmaqU4R\downloaded_packages
> library(Seurat)
Error: package or namespace load failed for ‘Seurat’ in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]): there is no package called ‘htmlwidgets’
