A data frame is used for storing data tables that have a list of vectors with equal length. To write an R program for comparing the data frames, we are using data.frame() function. it is an in-built function that helps to create a data frame. The function setdiff() helps to calculate the (nonsymmetric) set difference of subsets of a probability space, which is used for comparing. The syntax of this function is,
setdiff(x, …)
Where
In this R program, we directly give the data frame to a built-in function. Here we are using variables DF1, and DF2 for holding different data frames. Call the function data.frame() for creating a DF. Finally, compare the two DFs by calling the function setdiff() like setdiff(DF1, DF2).
STEP 1: Assign variables DF1, DF2 with data frames
STEP 2: First print the original values
STEP 3: Compare it by calling like setdiff(DF1,DF2)
STEP 4: Print the final result
DF1 = data.frame(
"item" = c("item1", "item2", "item3"),
"Jan" = c(12, 14, 12),
"Feb" = c(11, 12, 15),
"Mar" = c(12, 14, 15)
)
DF2 = data.frame(
"item" = c("item1", "item2", "item3"),
"Jan" = c(12, 14, 12),
"Feb" = c(11, 12, 15),
"Mar" = c(12, 15, 18)
)
print("Original Dataframes:")
print(DF1)
print(DF2)
print("Row(s) in first data frame that are not present in second data frame:")
print(setdiff(DF1,DF2))
[1] "Original Dataframes:" item Jan Feb Mar 1 item1 12 11 12 2 item2 14 12 14 3 item3 12 15 15 item Jan Feb Mar 1 item1 12 11 12 2 item2 14 12 15 3 item3 12 15 18 [1] "Row(s) in first data frame that are not present in second data frame:" Mar 1 12 2 14 3 15
