i have already installed packages like dplyr and magittr but it is still showing erroe as > library(dplyr)Error: package or namespace load failed for ‘dplyr’ in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]): there is no package called ‘magrittr’
If we want to add variables in between two column, can we use mutate function for that ?As mutate function add variables (column) always at last.
for the assignment...airquality data set is html file.how to read it and store in a variable.
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Outline:Functions in the dplyr package Select multiple variables in a data frame Remove variables from a data frame Use of select function Use of starts_with function Change the name of a variable Use of rename function Create a new variable from existing variables Use of mutate function Property of mutate function
Functions in the dplyr package Select multiple variables in a data frame Remove variables from a data frame Use of select function Use of starts_with function Change the name of a variable Use of rename function Create a new variable from existing variables Use of mutate function Property of mutate function
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