how to create md5 hash of a column in R?

md5, r

Solution

Package `digest` absolutely suitable for this task, so firstly we load it:

library(digest)

Then create/load/etc. test `data.frame` `df`:

txt <-
"ID,VID
1,xyz-0001
2,abc-0987"

df <- read.table(header=T, text=txt, sep=",", stringsAsFactors=F)
df

The initial data looks like:

  ID      VID
1  1 xyz-0001
2  2 abc-0987

Then we can use function `digest` with specified algorithm:

df$VID <- sapply(df$VID, digest, algo="md5")
df

Now we have hashed column `VID` in `df`:

  ID                              VID
1  1 44e3a9cf85f802ef50f18e64e01c5e32
2  2 c576ff180b2046c1a3ae939766588fd3

Problem

I have a data frame ``` ID, VID 1 , xyz-0001 ``` I would like to replace `VID` with md5 hash of `VID` column value. How would i do that in R? I looked at `digest` package but can not figure out how to put that in R Code Thanks

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