Find string in data.frame

Question

How do I search for a string in a data.frame? As a minimal example, how do I find the locations (columns and rows) of \'horse\' in this data.frame?

Answer 1

Another way to do it is the following:

library(data.table)
library(zoo)
library(dplyr)
library(timeDate)
library(reshape2)
data frame name = tbl_account

first,Transpose it :

temp = t(tbl_Account)

Then, put it in to a list :

temp = list(temp)

This essentially puts every single observation in a data frame in to one massive string, allowing you to search the whole data frame in one go.

then do the searching :

temp[[1]][grep("Horse",temp[[1]])] #brings back the actual value occurrences
grep("Horse", temp[[1]]) # brings back the position of the element in a list it occurs in 

hope this helps :)