lesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table buglesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table buglesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table buglesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table buglesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table buglesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table buglesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table buglesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table buglesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table buglesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table buglesson 4 of 6 · missing values, dtypes, and the silent model bugmissing values, dtypes, and the silent table bug
Checkpoint
One last thing before we move on. pass this to mark the lesson done, or skip and keep moving. hop to the next when you're ready.
Checkpoint. Write column_report(values) returning a dict with n (total), missing (None count), and mean (of the present values, rounded to 1 decimal). This is the isna().sum()-before-you-trust-the-mean habit, as code.