Return the Head or Tail of an H2O Dataset.
Returns the first or last rows of an H2OFrame object.
h2o.head(x, n = 6L, m = 200L, ...) ## S3 method for class 'H2OFrame' head(x, n = 6L, m = 200L, ...) h2o.tail(x, n = 6L, m = 200L, ...) ## S3 method for class 'H2OFrame' tail(x, n = 6L, m = 200L, ...)
x |
An H2OFrame object. |
n |
(Optional) A single integer. If positive, number of rows in x to return. If negative, all but the n first/last number of rows in x. |
m |
(Optional) A single integer. If positive, number of columns in x to return. If negative, all but the m first/last number of columns in x. |
... |
Ignored. |
An H2OFrame containing the first or last n rows and m columns of an H2OFrame object.
## Not run:
library(h2o)
h2o.init(ip <- "localhost", port = 54321, startH2O = TRUE)
australia_path <- system.file("extdata", "australia.csv", package = "h2o")
australia <- h2o.uploadFile(path = australia_path)
# Return the first 10 rows and 6 columns
h2o.head(australia, n = 10L, m = 6L)
# Return the last 10 rows and 6 columns
h2o.tail(australia, n = 10L, m = 6L)
# For Jupyter notebook with an R kernel,
# view all rows of a data frame
options(repr.matrix.max.rows = 600, repr.matrix.max.cols = 200)
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.