## S3 method for class 'H2OFrame':
[(data, row, col, drop = TRUE)## S3 method for class 'H2OFrame':
$(x, name)
## S3 method for class 'H2OFrame':
[[(x, i, exact = TRUE)
## S3 method for class 'H2OFrame':
$(x, name)
## S3 method for class 'H2OFrame':
[[(x, i, exact = TRUE)
## S3 method for class 'H2OFrame':
[(data, row, col, ...) <- value
## S3 method for class 'H2OFrame':
$(data, name) <- value
## S3 method for class 'H2OFrame':
[[(data, name) <- value
[[
when extracting
a character