Add `DateTimeNaNDataCheck` by jeremyliweishih · Pull Request #2039 · alteryx/evalml

jeremyliweishih · 2021-03-25T20:15:29Z

Fixes #1999.

codecov · 2021-03-25T20:29:04Z

Codecov Report

Merging #2039 (79fff01) into main (8556450) will increase coverage by 0.1%.
The diff coverage is 100.0%.

@@            Coverage Diff            @@
##             main    #2039     +/-   ##
=========================================
+ Coverage   100.0%   100.0%   +0.1%     
=========================================
  Files         280      282      +2     
  Lines       22934    23004     +70     
=========================================
+ Hits        22925    22995     +70     
  Misses          9        9

Impacted Files	Coverage Δ
evalml/data_checks/__init__.py	`100.0% <100.0%> (ø)`
evalml/data_checks/data_check_message_code.py	`100.0% <100.0%> (ø)`
evalml/data_checks/datetime_nan_data_check.py	`100.0% <100.0%> (ø)`
evalml/data_checks/default_data_checks.py	`100.0% <100.0%> (ø)`
evalml/tests/data_checks_tests/test_data_checks.py	`100.0% <100.0%> (ø)`
.../data_checks_tests/test_datetime_nan_data_check.py	`100.0% <100.0%> (ø)`

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jeremyliweishih · 2021-03-25T22:00:09Z


    """

    _DEFAULT_DATA_CHECK_CLASSES = [HighlyNullDataCheck, IDColumnsDataCheck,


Since AutoMLSearch will error out if a user provides datetime columns and has NaN values, I opted to add to default data checks as a safe guard.

Didn't realize that don't have data checks as part of AutoMLSearch now. Open to removing this as well.

I think it's fine to leave in for now, as we can still use the default data checks with DefaultDataChecks().validate(X_train, y_train). As our data check process updates, this might change, but I see no issues in adding it here

jeremyliweishih · 2021-03-25T22:00:55Z

+error_contains_nan = "Input datetime column ({}) contains NaN values. Please input NaN values or drop this column."
+
+
+class DateTimeNaNDataCheck(DataCheck):


Do we have a standardization of NaN vs Null terminology? I decided to use NaN here but can change to null as well.

That's a good question...I don't think nulls fall into the scope of this. We have data checks to alert us to highly null columns and I don't think a null by itself makes the algorithm choke.

bchen1116

Code looks good to me! I left a few suggestions on tests to add to solidify our coverage a bit more, and I also agree that adding this datacheck to DefaultDataChecks is fine. PR should be good to go after the added tests though! 👌

bchen1116 · 2021-03-26T13:31:44Z

+    """Checks if datetime columns contain NaN values."""
+
+    def __init__(self):
+        """Checks each column in the input for datetime features and will issue and error if NaN values are present.


typo: will issue an error

bchen1116 · 2021-03-26T13:38:53Z


    """

    _DEFAULT_DATA_CHECK_CLASSES = [HighlyNullDataCheck, IDColumnsDataCheck,


I think it's fine to leave in for now, as we can still use the default data checks with DefaultDataChecks().validate(X_train, y_train). As our data check process updates, this might change, but I see no issues in adding it here

bchen1116 · 2021-03-26T13:49:01Z

Ah, and also add this new data check to the docs

CLAassistant · 2021-03-26T14:35:07Z

All committers have signed the CLA.

ParthivNaresh

Looks great man

freddyaboulton

@jeremyliweishih Implementation looks solid! I agree with the suggestions to add coverage!

chukarsten

I think besides the test coverage suggested by @bchen1116 , there's a few copy pastas from the highly null data check you used for a template ;). Otherwise, good work!

chukarsten · 2021-03-26T19:37:12Z

+error_contains_nan = "Input datetime column ({}) contains NaN values. Please input NaN values or drop this column."
+
+
+class DateTimeNaNDataCheck(DataCheck):


That's a good question...I don't think nulls fall into the scope of this. We have data checks to alert us to highly null columns and I don't think a null by itself makes the algorithm choke.

angela97lin

A bit of copy pasta and testing updates needed, but I also think it might be useful to combine all the columns into one for the error. Unlike the other data checks that return granular info per col, this only reports which datetime cols have nan values, so seems cleaner to just combine.

jeremyliweishih · 2021-03-29T23:03:07Z

-                                                 data_check_name="NoVarianceDataCheck",
-                                                 message_code=DataCheckMessageCode.NO_VARIANCE,
-                                                 details={"column": "Y"}).to_dict()],
+        "errors": messages[4:7] + [DataCheckError(message="Y has 1 unique value.",


@angela97lin

…999_dtf_nan

stale

jeremyliweishih added 4 commits March 25, 2021 15:12

Add datetime_nan_datacheck

a905cbb

Add datetime_nan_data_check tests

7e861b4

RL

090b689

Merge branch 'main' of github.com:alteryx/evalml into js_1999_dtf_nan

7048062

jeremyliweishih added 6 commits March 25, 2021 17:09

Add to API reference

4d23386

Add doc test

128c068

Merge branch 'main' of github.com:alteryx/evalml into js_1999_dtf_nan

9bc46d4

Add better msg

e58548a

Add to default data checks

2efb047

Lint

5c33ff7

jeremyliweishih marked this pull request as ready for review March 25, 2021 21:58

auto-assign Bot assigned jeremyliweishih Mar 25, 2021

jeremyliweishih commented Mar 25, 2021

View reviewed changes

Merge branch 'main' into js_1999_dtf_nan

c03367f

jeremyliweishih requested review from ParthivNaresh, angela97lin, bchen1116, chukarsten and freddyaboulton March 25, 2021 23:02

bchen1116 approved these changes Mar 26, 2021

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ParthivNaresh approved these changes Mar 26, 2021

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Comment thread evalml/data_checks/default_data_checks.py

freddyaboulton approved these changes Mar 26, 2021

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Comment thread evalml/data_checks/datetime_nan_data_check.py Outdated

Comment thread evalml/tests/data_checks_tests/test_datetime_nan_data_check.py

chukarsten previously requested changes Mar 26, 2021

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angela97lin previously requested changes Mar 28, 2021

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Comment thread evalml/data_checks/__init__.py Outdated

Comment thread evalml/data_checks/datetime_nan_data_check.py Outdated

jeremyliweishih added 2 commits March 29, 2021 11:03

Fix copy pasta

de1ea1f

Fix error msg

9602cc1

jeremyliweishih added 12 commits March 29, 2021 11:06

Fix spacing

ec014b3

one error

f852467

add more test cases

7d17f95

Merge branch 'main' of github.com:alteryx/evalml into js_1999_dtf_nan

d36453f

Add to default datacheck test

5b555f0

Fix doctest

1064d2b

Fix datacheck test

65021d6

Add nan to regression default datachecks

9369872

Add nan_dt_col leakage warning

82a0314

Fix default tests

5dca691

Fix tests

b17ae74

Merge branch 'main' of github.com:alteryx/evalml into js_1999_dtf_nan

1cd46d2

jeremyliweishih commented Mar 29, 2021

View reviewed changes

jeremyliweishih added 7 commits March 29, 2021 19:05

typo

c9c41ce

Add to_dict() to datetime_nan_data_check tests

8f29cbf

Fix doctest

fb7319c

Merge branch 'main' into js_1999_dtf_nan

bec461b

Add to docs

77ef3db

Merge branch 'js_1999_dtf_nan' of github.com:alteryx/evalml into js_1…

8aa57fe

…999_dtf_nan

typo

79fff01

jeremyliweishih requested review from angela97lin and chukarsten March 30, 2021 17:43

jeremyliweishih merged commit d6d2d84 into main Mar 31, 2021

freddyaboulton deleted the js_1999_dtf_nan branch May 13, 2022 15:01


		"""

		_DEFAULT_DATA_CHECK_CLASSES = [HighlyNullDataCheck, IDColumnsDataCheck,

		error_contains_nan = "Input datetime column ({}) contains NaN values. Please input NaN values or drop this column."


		class DateTimeNaNDataCheck(DataCheck):

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