Is it possible to create new variables using R? (Newbie)

See the FAQ: How to do a minimal reproducible example reprex for beginners. Lacking one, only abstract guidance is possible.

The source data for the first variable might look like purch below,
representing a sequence of purchases for 28 consecutive seasons, in which case,

set.seed(137)
purch <- sample(0:5,28,replace=TRUE)
length(purch) - length(purch[which(purch == 0)])
#> [1] 25

indicating that 25 of 28 seasons had non-zero sales.

The other two are identical in form—boolean vectors, with TRUE/FALSE values. Assuming there are two vectors, also of length 28, encoding multichannel status and gift dollar status, respectively through encoding of 1/0. Then

cust_attribute   <- c(1,0,0,1,1,0,0,0,1,0,1,1,1,0,0,1,0,1,1,0,0,0,1,1,1,1,0,1)
cust_attribute > 0
#>  [1]  TRUE FALSE FALSE  TRUE  TRUE FALSE FALSE FALSE  TRUE FALSE  TRUE  TRUE
#> [13]  TRUE FALSE FALSE  TRUE FALSE  TRUE  TRUE FALSE FALSE FALSE  TRUE  TRUE
#> [25]  TRUE  TRUE FALSE  TRUE

This brings to the fore the want of a reprex. Having to guess at the structure of the source data likely makes the answer less helpful than it might otherwise be.