title: How to take random samples for H2O data frame in R?
body: <p>I have a h2o data table with 40 columns and 1 million rows. I want do a random selection of 0.3 million rows without replacement. The H2o.sample function i looked online gives the error (I've already start h2o cluster)</p>
  
  <pre><code>Error: could not find function "h2o.sample"
  </code></pre>
  
  <p>Is there any other way i can do this? Thanks in advance!</p>