Course
Data Frames
Convert a List to a DataframeCreate an Empty DataframeCombine Two Dataframe into OneChange Column Name of a DataframeExtract Columns From a DataframeDrop Columns in a DataframeReorder Columns in a DataframeSplit DataframeMerge Multiple DataframesDelete Rows From DataframeMake a List of DataframesIntroduction
"Hello World" ProgramAdd Two VectorsFind Sum, Mean and Product of Vector in R ProgrammingTake Input From UserGenerate Random Number from Standard DistributionsSample from a PopulationFind Minimum and MaximumSort a VectorStrings
Concatenate Two StringsFind the Length of a StringCheck if Characters are Present in a StringExtract n Characters From a StringReplace Characters in a StringCompare two StringsConvert Factors to CharactersTrim Leading and Trailing WhitespacesVectors
Concatenate a Vector of StringsCheck if a Vector Contains the Given ElementCount the Number of Elements in a VectorFind Index of an Element in a VectorAccess Values in a VectorAdd Leading Zeros to VectorR Multiplication Table
Example: Multiplication Table
# Program to find the multiplication
# table (from 1 to 10)
# of a number input by the user
# take input from the user
num = as.integer(readline(prompt = "Enter a number: "))
# use for loop to iterate 10 times
for(i in 1:10) {
print(paste(num,'x', i, '=', num*i))
}
Output
Enter a number: 7
[1] "7 x 1 = 7"
[1] "7 x 2 = 14"
[1] "7 x 3 = 21"
[1] "7 x 4 = 28"
[1] "7 x 5 = 35"
[1] "7 x 6 = 42"
[1] "7 x 7 = 49"
[1] "7 x 8 = 56"
[1] "7 x 9 = 63"
[1] "7 x 10 = 70"
Here, we ask the user for a number which is stored in num variable.
Then, the for loop is iterated 10 times from i equals to 1 to i equals to 10. In each iteration, a row of the multiplication table is printed using:
print(paste(num,'x', i, '=', num*i))