/R/Collapse text by group in dataframe r

Collapse text by group in dataframe r

# You want to aggregate text by group
df <- read.table(header=T, text="
group text
a a1
a a2
a a3
b b1
b b2
c c1
c c2
c c3
")

aggregate(df$text, list(df$group), paste, collapse="")
##   Group.1      x
## 1       a a1a2a3
## 2       b   b1b2
## 3       c c1c2c3

Source: stackoverflow.com

Similar codes

0 vote288 views1 answer
Read.table tab separator
R
0 vote154 views1 answer
Gradient background ggplot
R
0 vote212 views1 answer
Rnorm in r
R
0 vote305 views1 answer
Save link tweet in new column in R
R
0 vote209 views1 answer
Convert a matrix to a vector in r
R
0 vote218 views1 answer
Replace na in a column with values from another df
R
0 vote212 views1 answer
Remove , in numbers in r
R
0 vote215 views1 answer
Convert all numeric columns to percentages R
R
0 vote213 views2 answers
Calculated defualt values in R function parameters
R
1 vote221 views1 answer
R return index of rows that have NA in dataframe
R