R Error in rbind : numbers of columns of arguments do not match (2 Examples)

df1 <- data.frame(col1 = letters[1:4],    # Construct two data sets
                  col2 = 4:1,
                  col3 = 8:5,
                  col4 = letters[8:5])
df1
#   col1 col2 col3 col4
# 1    a    4    8    h
# 2    b    3    7    g
# 3    c    2    6    f
# 4    d    1    5    e

df1 <- data.frame(col1 = letters[1:4], # Construct two data sets col2 = 4:1, col3 = 8:5, col4 = letters[8:5]) df1 # col1 col2 col3 col4 # 1 a 4 8 h # 2 b 3 7 g # 3 c 2 6 f # 4 d 1 5 e

df2 <- data.frame(col1 = LETTERS[1:4],
                  col3 = 18:15)
df2
#   col1 col3
# 1    A   18
# 2    B   17
# 3    C   16
# 4    D   15

df2 <- data.frame(col1 = LETTERS[1:4], col3 = 18:15) df2 # col1 col3 # 1 A 18 # 2 B 17 # 3 C 16 # 4 D 15

rbind(df1, df2)                           # rbind function of Base R
# Error in rbind(deparse.level, ...) : 
#   numbers of columns of arguments do not match

rbind(df1, df2) # rbind function of Base R # Error in rbind(deparse.level, ...) : # numbers of columns of arguments do not match

install.packages("dplyr")                 # Install & load dplyr
library("dplyr")

install.packages("dplyr") # Install & load dplyr library("dplyr")

bind_rows(df1, df2)                       # bind_rows function of dplyr package
#   col1 col2 col3 col4
# 1    a    4    8    h
# 2    b    3    7    g
# 3    c    2    6    f
# 4    d    1    5    e
# 5    A   NA   18 <NA>
# 6    B   NA   17 <NA>
# 7    C   NA   16 <NA>
# 8    D   NA   15 <NA>

bind_rows(df1, df2) # bind_rows function of dplyr package # col1 col2 col3 col4 # 1 a 4 8 h # 2 b 3 7 g # 3 c 2 6 f # 4 d 1 5 e # 5 A NA 18 <NA> # 6 B NA 17 <NA> # 7 C NA 16 <NA> # 8 D NA 15 <NA>