title: Is there a way to filter out specific entries in a column in H2O Frame?
body: <p>I have a H2O frame with PERF_MTHLY_DT column as a string with dates ranging from &quot;2021-04-30&quot; to &quot;2021_01_31&quot;. I only want the rows with &quot;2021_01_31&quot; (similar to a where clause in sql : &quot;where PERF_MTHLY_DT = &quot;2021-04-30&quot;&quot;  . Is this possible in H2O frame?</p>