Problems with ee$List$repeat

Question

I am trying to get the following code to work in Google Earth Engine using the rgee package:

# Load rgee
library(rgee)

# Initialise
ee_users()
ee_Initialize()

# The incorrect use of repeat within an rgee context
ee$List$repeat(1,3)

But I get the error:

Error: unexpected 'repeat' in "ee$List$repeat"

Is it because there is some confusion with repeat in base r?

Have you tried putting `repeat` in backticks, "`"? It's a reserved word in R. — user2554330, Nov 26 '20 at 18:31
@user2554330 It might be worth posting that as an answer. I'd upvote it. There is some chance someone could search for the same thing. — Ian Campbell, Nov 26 '20 at 19:07
@IanCampbell: I'm not going to put it in an answer, but feel free to go ahead. The question doesn't include a reproducible example, so it should be closed. — user2554330, Nov 26 '20 at 23:16
I added some further code to hopefully make this reproduceable — Anthony W, Nov 27 '20 at 08:50

score 3 · Accepted Answer · answered Nov 30 '20 at 16:01

For R reserved words use backticks/quotation marks:

    # Load rgee
    library(rgee)
    
    # Initialise
    ee_users()
    ee_Initialize()
    
    # The incorrect use of repeat within an rgee context
    ee$List$'repeat'(1,3)$map( 
        ee_utils_pyfunc( #ee_utils_pyfunc is necessary to apply a map function to an ee$List
          function(x) {
            ee$Number(x)$add(1)
          }
        )    
    )

Problems with ee$List$repeat

1 Answers1