replace a specific strings from multiple columns in a dataframe

Question

I want to replace the strings \"aa\" and \"aaa\" in the dataframe below with\"\"

data = data.frame(attr = c(1:4), type1=c(         


        

Answer 1

You could just set option fixed = FALSE and delete all the a's.

data <- as.data.frame(apply(data, 2, function(x) gsub("a",'', x, fixed = FALSE)))
data
#   attr type1 type2
# 1    1            
# 2    2     b      
# 3    3            
# 4    4     b