/R/Combine row for every element of vector r

Combine row for every element of vector r

# Do this for vectors
v1 <- 1:2
v2 <- 3:4
expand.grid(v1, v2)
#  Var1 Var2
#1    1    3
#2    2    3
#3    1    4
#4    2    4

# Use merge for dataframes
df1 <- data.frame(a = 1:2, b=3:4)
df2 <- data.frame(cat = 5:6, dog = c("a","b"))
merge(df1, df2)

Source: stackoverflow.com

Similar codes

0 vote202 views1 answer
How to select certain rows containing a word in r
R
1 vote199 views1 answer
R lists vs vectors
R
0 vote193 views1 answer
R: rename a column
R
0 vote193 views2 answers
List to dataframe in r
R
0 vote186 views1 answer
Conditional mean statement r
R
1 vote177 views1 answer
R change a single value in a dataframe
R
0 vote225 views1 answer
Replace character with na r
R
3 votes471 views2 answers
If string in r
R
0 vote188 views1 answer
R read.csv tab delimited
R
0 vote243 views1 answer
Get list of words that are in two lists using set
R