R-language

day 1 - Variables, readline(input from user), list. day 2 - sequence,rep,for loop,sort,dataframe. day 3 - data frame, rows and columns, row binds, column binds, loops-amstrong number, sum of digits, palindrome. day 4 - repeat loop, switch case, function, normal distribution. day 5 - class-returns data type of variable, grep, grepl, regular expression-phone number, email. day 6 - read and write excel files using 'xlsx' library. day 7 - practice problems and solutions in loops, functions, csv. day 8 - Visualization using ggplot2. day 9 - sample problems using loops, functions and regular expression. day 10 - 3D visualization using plotrix