It worked. Thank you so much. But now, when I start loading it using command library(Hmisc), I get the following warning. Would you please help me to figure it out?
WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:
https://cran.rstudio.com/bin/windows/Rtools/ Installing package into ‘C:/Users/Hammad/OneDrive/Documents/R/win-library/3.6’ (as ‘lib’ is unspecified) Warning in install.packages : package ‘Hmisc’ is in use and will not be installed