Join two datasets based on an inequality condition

Question

I have used the call below to \"join\" my datasets based on an inequality condition:

library(sqldf)

sqldf(\"select *
from dataset1 a,
dataset2 b
a.col1 <         


        

Answer 1

You could definitely do it in two steps utilizing merge.

Example (the exact details of the merge are up to you):

lessRows <- which(df1$col1 < df2$col2)
df3 <- merge(df1, df2)[lessRows, ]