CODEWITHSUNDEEP
rdataframe
SJH1990
SJH1990

Reputation: 33

replacing specific values in a dataframe in R

I have a large df with values in a column with the sequence pattern: seq(1,3000,10).

I need to change every value in the column so that

1 = 1
11 = 2
21 = 3
31 = 4
41 = 5

The order of these numbers are jumbled in places, therefore I need to define that every 1 is converted to 1, 11 to 2, 21 to 3, 31 to 4 and so on for thousands of numbers with this sequence pattern.

Upvotes: 1

Views: 55

Answers (1)

Darren Tsai
Darren Tsai

Reputation: 35554

Example

x <- seq(1, 100, by = 10)
# [1]  1 11 21 31 41 51 61 71 81 91

You can use %/%:

x %/% 10 + 1
# [1]  1  2  3  4  5  6  7  8  9 10

Upvotes: 2

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