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The dataset generation failed because of a cast error
Error code: DatasetGenerationCastError
Exception: DatasetGenerationCastError
Message: An error occurred while generating the dataset
All the data files must have the same columns, but at some point there are 8 new columns ({'pm2_5_ugm3', 'pm10_ugm3', 'no2_ugm3', 'so2_ugm3', 'AQI_label', 'city_enc', 'AQI_category', 'co_ugm3'}) and 7 missing columns ({'pm2_5_ugm3_log', 'city', 'no2_ugm3_log', 'so2_ugm3_log', 'co_ugm3_log', 'AQI', 'pm10_ugm3_log'}).
This happened while the csv dataset builder was generating data using
hf://datasets/rachitgoyell/vayu-cleaned/02_classification/clf_train_scaled.csv (at revision 07b4a2f4236958a6e74f495a677bd1bdc83fd5b6), [/tmp/hf-datasets-cache/medium/datasets/39616892930706-config-parquet-and-info-rachitgoyell-vayu-cleaned-9c28150a/hub/datasets--rachitgoyell--vayu-cleaned/snapshots/07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/01_regression/regression_train.csv (origin=hf://datasets/rachitgoyell/vayu-cleaned@07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/01_regression/regression_train.csv), /tmp/hf-datasets-cache/medium/datasets/39616892930706-config-parquet-and-info-rachitgoyell-vayu-cleaned-9c28150a/hub/datasets--rachitgoyell--vayu-cleaned/snapshots/07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/02_classification/clf_train_scaled.csv (origin=hf://datasets/rachitgoyell/vayu-cleaned@07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/02_classification/clf_train_scaled.csv), /tmp/hf-datasets-cache/medium/datasets/39616892930706-config-parquet-and-info-rachitgoyell-vayu-cleaned-9c28150a/hub/datasets--rachitgoyell--vayu-cleaned/snapshots/07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/02_classification/clf_train_unscaled.csv (origin=hf://datasets/rachitgoyell/vayu-cleaned@07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/02_classification/clf_train_unscaled.csv)]
Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)
Traceback: Traceback (most recent call last):
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 1890, in _prepare_split_single
writer.write_table(table)
File "/usr/local/lib/python3.12/site-packages/datasets/arrow_writer.py", line 760, in write_table
pa_table = table_cast(pa_table, self._schema)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/table.py", line 2272, in table_cast
return cast_table_to_schema(table, schema)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/table.py", line 2218, in cast_table_to_schema
raise CastError(
datasets.table.CastError: Couldn't cast
pm2_5_ugm3: double
pm10_ugm3: double
co_ugm3: double
no2_ugm3: double
so2_ugm3: double
o3_ugm3: double
city_enc: double
month: double
hour: double
day_of_week: double
AQI_label: int64
AQI_category: string
-- schema metadata --
pandas: '{"index_columns": [{"kind": "range", "name": null, "start": 0, "' + 1666
to
{'city': Value('string'), 'pm2_5_ugm3_log': Value('float64'), 'pm10_ugm3_log': Value('float64'), 'co_ugm3_log': Value('float64'), 'no2_ugm3_log': Value('float64'), 'so2_ugm3_log': Value('float64'), 'o3_ugm3': Value('float64'), 'month': Value('float64'), 'hour': Value('int64'), 'day_of_week': Value('int64'), 'AQI': Value('float64')}
because column names don't match
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1347, in compute_config_parquet_and_info_response
parquet_operations = convert_to_parquet(builder)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 980, in convert_to_parquet
builder.download_and_prepare(
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 884, in download_and_prepare
self._download_and_prepare(
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 947, in _download_and_prepare
self._prepare_split(split_generator, **prepare_split_kwargs)
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 1739, in _prepare_split
for job_id, done, content in self._prepare_split_single(
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.12/site-packages/datasets/builder.py", line 1892, in _prepare_split_single
raise DatasetGenerationCastError.from_cast_error(
datasets.exceptions.DatasetGenerationCastError: An error occurred while generating the dataset
All the data files must have the same columns, but at some point there are 8 new columns ({'pm2_5_ugm3', 'pm10_ugm3', 'no2_ugm3', 'so2_ugm3', 'AQI_label', 'city_enc', 'AQI_category', 'co_ugm3'}) and 7 missing columns ({'pm2_5_ugm3_log', 'city', 'no2_ugm3_log', 'so2_ugm3_log', 'co_ugm3_log', 'AQI', 'pm10_ugm3_log'}).
This happened while the csv dataset builder was generating data using
hf://datasets/rachitgoyell/vayu-cleaned/02_classification/clf_train_scaled.csv (at revision 07b4a2f4236958a6e74f495a677bd1bdc83fd5b6), [/tmp/hf-datasets-cache/medium/datasets/39616892930706-config-parquet-and-info-rachitgoyell-vayu-cleaned-9c28150a/hub/datasets--rachitgoyell--vayu-cleaned/snapshots/07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/01_regression/regression_train.csv (origin=hf://datasets/rachitgoyell/vayu-cleaned@07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/01_regression/regression_train.csv), /tmp/hf-datasets-cache/medium/datasets/39616892930706-config-parquet-and-info-rachitgoyell-vayu-cleaned-9c28150a/hub/datasets--rachitgoyell--vayu-cleaned/snapshots/07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/02_classification/clf_train_scaled.csv (origin=hf://datasets/rachitgoyell/vayu-cleaned@07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/02_classification/clf_train_scaled.csv), /tmp/hf-datasets-cache/medium/datasets/39616892930706-config-parquet-and-info-rachitgoyell-vayu-cleaned-9c28150a/hub/datasets--rachitgoyell--vayu-cleaned/snapshots/07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/02_classification/clf_train_unscaled.csv (origin=hf://datasets/rachitgoyell/vayu-cleaned@07b4a2f4236958a6e74f495a677bd1bdc83fd5b6/02_classification/clf_train_unscaled.csv)]
Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
city string | pm2_5_ugm3_log float64 | pm10_ugm3_log float64 | co_ugm3_log float64 | no2_ugm3_log float64 | so2_ugm3_log float64 | o3_ugm3 float64 | month float64 | hour int64 | day_of_week int64 | AQI float64 |
|---|---|---|---|---|---|---|---|---|---|---|
dehradun | 3.186353 | 3.190476 | 6.200509 | 2.867899 | 2.197225 | 97 | 6 | 19 | 2 | 97.1 |
bengaluru | 3.030134 | 3.374169 | 5.869297 | 2.99072 | 2.667228 | 34 | 9 | 6 | 4 | 34 |
shimla | 1.757858 | 1.774952 | 5.659482 | 0.916291 | 1.163151 | 121 | 8 | 11 | 4 | 131.6 |
jaipur | 3.126761 | 3.161247 | 5.945421 | 2.667228 | 2.00148 | 75 | 8 | 21 | 6 | 75.5 |
imphal | 3.589059 | 3.589059 | 6.490724 | 3.552487 | 1.704748 | 19 | 9 | 21 | 6 | 59.5 |
visakhapatnam | 3.178054 | 3.273364 | 7.704812 | 3.407842 | 1.609438 | 23 | 4 | 4 | 1 | 106.2 |
jaipur | 3.198673 | 4.102643 | 5.003946 | 1.193922 | 1.481605 | 98 | 6 | 12 | 2 | 98 |
patna | 4.59512 | 4.989071 | 6.697034 | 3.586293 | 3.148453 | 110 | 11 | 17 | 5 | 227.4 |
shimla | 2.617396 | 2.95491 | 5.030438 | 1.410987 | 1.686399 | 99 | 9 | 17 | 2 | 99 |
ahmedabad | 2.99072 | 3.38439 | 5.509388 | 1.774952 | 2.251292 | 145 | 2 | 17 | 5 | 166.5 |
kolkata | 2.653242 | 3.00072 | 5.700444 | 2.827314 | 2.747271 | 21 | 9 | 2 | 2 | 22 |
bengaluru | 3.763523 | 4.19268 | 6.09357 | 3.068053 | 2.557227 | 91 | 10 | 23 | 3 | 91.2 |
guwahati | 3.637586 | 3.994524 | 5.63479 | 0.788457 | 1.280934 | 136 | 5 | 12 | 6 | 153.4 |
shimla | 2.821379 | 3.157 | 5.438079 | 2.476538 | 1.193922 | 80 | 8 | 19 | 5 | 80.4 |
thiruvananthapuram | 1.740466 | 2.272126 | 4.634729 | 1.280934 | 0.693147 | 38 | 10 | 5 | 2 | 38 |
kolkata | 5.050497 | 5.508983 | 7.083388 | 4.01458 | 3.706228 | 52 | 1 | 21 | 5 | 348.6 |
bhopal | 2.312535 | 3.109061 | 4.882802 | 0.587787 | 1.193922 | 80 | 8 | 14 | 1 | 80.4 |
dehradun | 3.284664 | 3.634951 | 6.431331 | 3.020425 | 1.84055 | 32 | 2 | 4 | 2 | 42.8 |
ahmedabad | 3.561046 | 3.589059 | 6.059123 | 3.850148 | 2.564949 | 16 | 1 | 3 | 5 | 58.4 |
kohima | 3.496508 | 3.508556 | 5.429346 | 2.778819 | 1.629241 | 34 | 1 | 3 | 1 | 54.3 |
dehradun | 2.901422 | 3.33577 | 6.308098 | 3.039749 | 1.931521 | 26 | 11 | 1 | 3 | 28.7 |
ahmedabad | 3.864931 | 4.302713 | 5.988961 | 1.722767 | 2.960105 | 144 | 12 | 14 | 3 | 165.1 |
delhi | 3.962716 | 4.324133 | 6.549651 | 2.501436 | 3.808882 | 169 | 12 | 12 | 3 | 203.5 |
kolkata | 4.395683 | 4.404277 | 7.16858 | 3.342862 | 2.772589 | 39 | 11 | 2 | 4 | 167.3 |
chandigarh | 4.065602 | 4.07244 | 6.732211 | 3.754199 | 3.258097 | 66 | 10 | 20 | 3 | 95.6 |
bhopal | 4.123903 | 4.168214 | 5.690359 | 1.360977 | 2.379546 | 137 | 10 | 15 | 2 | 154.9 |
bhopal | 3.943522 | 4.483003 | 5.877736 | 1.526056 | 2.066863 | 90 | 10 | 8 | 1 | 90.2 |
bhubaneswar | 3.589059 | 3.992681 | 5.609472 | 2.388763 | 2.433613 | 126 | 2 | 16 | 6 | 138.9 |
thiruvananthapuram | 3.178054 | 3.206803 | 5.966147 | 2.653242 | 1.987874 | 71 | 11 | 6 | 4 | 71.6 |
ahmedabad | 4.171306 | 4.55703 | 6.946014 | 4.508659 | 2.944439 | 33 | 11 | 19 | 4 | 113.5 |
guwahati | 3.068053 | 3.404525 | 5.497168 | 1.774952 | 1.360977 | 63 | 7 | 19 | 1 | 63.7 |
gurugram | 4.102643 | 5.678465 | 5.899897 | 2.128232 | 2.884801 | 146 | 11 | 14 | 0 | 340.4 |
shillong | 2.104134 | 2.104134 | 5.398163 | 1.686399 | 0.470004 | 52 | 8 | 4 | 5 | 53 |
imphal | 2.923162 | 3.277145 | 6.126869 | 2.61007 | 1.335001 | 33 | 6 | 1 | 1 | 33 |
patna | 3.453157 | 3.802208 | 5.934894 | 2.61007 | 2.721295 | 76 | 9 | 21 | 6 | 76.5 |
itanagar | 2.809403 | 2.833213 | 5.645447 | 1.916923 | 0.993252 | 73 | 8 | 18 | 4 | 73.5 |
lucknow | 3.520461 | 3.520461 | 6.109248 | 2.873565 | 2.302585 | 63 | 8 | 20 | 5 | 63.7 |
dehradun | 3.575151 | 3.577948 | 6.381816 | 3.374169 | 2.370244 | 23 | 11 | 8 | 4 | 58.7 |
gangtok | 3.00072 | 3.109061 | 5.666427 | 0.741937 | 1.223775 | 123 | 11 | 11 | 1 | 134.5 |
bengaluru | 1.435085 | 2.116256 | 4.584967 | 1.335001 | 0.955511 | 35 | 7 | 3 | 3 | 35 |
ahmedabad | 3.93574 | 4.289089 | 7.103322 | 4.54223 | 3.104587 | 29 | 2 | 20 | 1 | 113.8 |
gangtok | 1.808289 | 2.116256 | 6.054439 | 1.193922 | 0.832909 | 79 | 9 | 11 | 0 | 79.4 |
mumbai | 4.708629 | 4.716712 | 6.803505 | 3.190476 | 3.824284 | 95 | 12 | 22 | 5 | 266.7 |
thiruvananthapuram | 2.985682 | 3.523415 | 5.204007 | 1.589235 | 1.252763 | 67 | 4 | 0 | 6 | 67.7 |
imphal | 3.122365 | 3.131137 | 5.347108 | 3.113515 | 1.163151 | 12 | 11 | 1 | 1 | 36.2 |
ahmedabad | 2.944439 | 3.367296 | 5.225747 | 2.197225 | 2.251292 | 73 | 6 | 6 | 5 | 73.5 |
chandigarh | 4.326778 | 4.731803 | 6.448889 | 3.681351 | 2.766319 | 103 | 6 | 20 | 5 | 149.5 |
dehradun | 3.139833 | 3.487375 | 5.488938 | 0.875469 | 1.335001 | 130 | 7 | 14 | 6 | 144.7 |
ranchi | 3.74242 | 4.104295 | 5.916202 | 1.916923 | 3.044522 | 102 | 10 | 5 | 6 | 103.9 |
aizawl | 2.906901 | 3.246491 | 5.991465 | 1.94591 | 0.262364 | 8 | 10 | 2 | 2 | 28.8 |
kolkata | 3.234749 | 3.640214 | 5.438079 | 2.00148 | 2.24071 | 105 | 6 | 1 | 2 | 108.3 |
aizawl | 2.933857 | 3.277145 | 6.021023 | 3.126761 | 0.470004 | 23 | 10 | 21 | 5 | 29.7 |
bengaluru | 3.025291 | 3.374169 | 5.786897 | 2.833213 | 1.88707 | 55 | 5 | 2 | 0 | 55.9 |
delhi | 3.591818 | 3.906005 | 6.498282 | 3.218876 | 2.753661 | 47 | 10 | 5 | 3 | 59.7 |
shillong | 3.265759 | 3.610918 | 6.280396 | 2.76001 | 1.252763 | 48 | 1 | 22 | 5 | 48 |
bengaluru | 3.325036 | 3.360375 | 6.361302 | 2.970414 | 2.104134 | 57 | 3 | 4 | 0 | 57.9 |
kolkata | 4.713127 | 5.085743 | 7.704812 | 4.133565 | 4.105944 | 30 | 11 | 0 | 5 | 268.3 |
patna | 2.884801 | 2.933857 | 5.590987 | 2.557227 | 2.785011 | 58 | 9 | 7 | 6 | 58.8 |
jaipur | 3.499533 | 4.19268 | 5.926926 | 2.525729 | 2.302585 | 88 | 2 | 17 | 5 | 88.2 |
raipur | 5.050497 | 5.434595 | 7.142037 | 4.18662 | 4.652054 | 17 | 12 | 3 | 3 | 331.2 |
kolkata | 4.418841 | 4.423648 | 6.668228 | 3.250374 | 3.11795 | 49 | 10 | 23 | 5 | 173.6 |
gangtok | 2.261763 | 2.312535 | 5.288267 | 2.261763 | 0.741937 | 68 | 6 | 3 | 5 | 68.6 |
guwahati | 3.543854 | 3.943522 | 5.866468 | 1.589235 | 1.722767 | 85 | 3 | 19 | 0 | 85.3 |
kohima | 2.734368 | 3.100092 | 5.777652 | 0.641854 | 0.405465 | 122 | 4 | 9 | 1 | 133 |
aizawl | 3.804438 | 4.200205 | 5.910797 | 1.252763 | 2.104134 | 79 | 2 | 0 | 2 | 79.4 |
kolkata | 4.104295 | 4.551769 | 6.084499 | 2.890372 | 2.97553 | 50 | 8 | 22 | 2 | 99.3 |
panaji | 2.341806 | 2.821379 | 5.01728 | 1.757858 | 1.131402 | 20 | 8 | 2 | 2 | 20 |
bhopal | 2.714695 | 3.246491 | 4.919981 | 1.648659 | 1.193922 | 73 | 6 | 21 | 2 | 73.5 |
gurugram | 4.000034 | 4.406719 | 6.098074 | 2.714695 | 3.875359 | 200 | 3 | 12 | 6 | 280.2 |
panaji | 3.161247 | 3.186353 | 5.641907 | 2.815409 | 1.648659 | 45 | 11 | 22 | 0 | 45 |
chandigarh | 3.258097 | 3.453157 | 6.196444 | 3.010621 | 2.980619 | 90 | 4 | 0 | 2 | 90.2 |
lucknow | 2.879198 | 3.222868 | 5.631212 | 1.916923 | 2.415914 | 105 | 9 | 10 | 1 | 108.3 |
patna | 4.380776 | 4.395683 | 6.403574 | 1.808289 | 2.766319 | 144 | 1 | 14 | 4 | 165.1 |
bhopal | 2.895912 | 4.210645 | 5.337538 | 0.470004 | 1.808289 | 177 | 4 | 12 | 0 | 223.3 |
lucknow | 2.960105 | 3.411148 | 5.187386 | 0.405465 | 2.151762 | 165 | 4 | 13 | 1 | 195.6 |
raipur | 3.280911 | 4.087656 | 5.598422 | 1.774952 | 3.265759 | 195 | 5 | 14 | 3 | 267.8 |
jaipur | 3.38439 | 3.970292 | 5.799093 | 3.030134 | 2.174752 | 46 | 5 | 3 | 5 | 53 |
patna | 2.66026 | 2.995732 | 5.723585 | 2.564949 | 2.884801 | 46 | 9 | 8 | 1 | 46 |
ahmedabad | 2.701361 | 3.465736 | 5.010635 | 1.410987 | 1.335001 | 117 | 5 | 17 | 6 | 125.8 |
lucknow | 3.077312 | 3.417727 | 5.605802 | 2.939162 | 1.974081 | 48 | 8 | 1 | 4 | 48 |
bhubaneswar | 2.949688 | 3.363842 | 5.641907 | 2.4681 | 1.280934 | 65 | 10 | 10 | 1 | 65.7 |
kohima | 2.104134 | 2.140066 | 5.361292 | 0.741937 | 0.405465 | 77 | 10 | 8 | 0 | 77.5 |
gangtok | 1.410987 | 1.648659 | 5.068904 | 0.993252 | 0.336472 | 86 | 6 | 10 | 4 | 86.3 |
patna | 3.144152 | 3.496508 | 5.666427 | 2.501436 | 2.312535 | 119 | 8 | 16 | 0 | 128.7 |
ahmedabad | 2.415914 | 2.844909 | 5.886104 | 2.370244 | 1.987874 | 70 | 3 | 9 | 4 | 70.6 |
dehradun | 3.182212 | 3.529297 | 5.537334 | 0.693147 | 1.902108 | 127 | 9 | 12 | 1 | 140.3 |
panaji | 2.60269 | 2.965273 | 5.505332 | 2.517696 | 0.875469 | 23 | 9 | 0 | 1 | 23 |
shimla | 3.552487 | 4.404277 | 5.872118 | 2.341806 | 1.84055 | 132 | 6 | 20 | 6 | 147.6 |
hyderabad | 3.339322 | 3.799974 | 5.746203 | 2.208274 | 2.028148 | 81 | 2 | 23 | 4 | 81.4 |
shillong | 2.965273 | 3.306887 | 6.118097 | 1.88707 | 1.163151 | 48 | 1 | 0 | 5 | 48 |
visakhapatnam | 3.572346 | 3.953165 | 6.09131 | 3.063391 | 3.605498 | 144 | 10 | 14 | 1 | 165.1 |
mumbai | 2.895912 | 3.65584 | 4.919981 | 1.916923 | 1.740466 | 52 | 6 | 6 | 2 | 53 |
gangtok | 3.353407 | 3.701302 | 6.504288 | 3.295837 | 1.193922 | 69 | 1 | 19 | 4 | 69.6 |
delhi | 5.050497 | 5.678465 | 7.704812 | 4.651099 | 4.652054 | 27 | 1 | 9 | 0 | 348.6 |
bhubaneswar | 3.010621 | 3.529297 | 5.135798 | 1.667707 | 1.629241 | 76 | 6 | 0 | 1 | 76.5 |
patna | 3.563883 | 4.005513 | 6.184149 | 2.61007 | 2.564949 | 46 | 4 | 5 | 4 | 58 |
kolkata | 3.540959 | 3.981549 | 5.703782 | 0.832909 | 3.449988 | 177 | 2 | 13 | 1 | 223.3 |
kolkata | 4.171306 | 4.547541 | 6.923629 | 3.616309 | 3.591818 | 41 | 3 | 0 | 6 | 113.5 |
raipur | 3.819908 | 4.273884 | 6.079933 | 3.015535 | 4.185099 | 117 | 4 | 9 | 1 | 125.8 |
jaipur | 3.360375 | 3.725693 | 5.723585 | 2.595255 | 2.079442 | 67 | 11 | 21 | 0 | 67.7 |
End of preview.
VAYU — Cleaned and Model-Ready CPCB Air Quality Data
Cleaned, feature-engineered, and split datasets ready for ML training.
Produced by the VAYU data preparation pipeline from raw CPCB sensor data.
Contents
| Folder | File | Use With |
|---|---|---|
05_shared/ |
master_cleaned.parquet |
All models — primary cleaned file |
05_shared/ |
master_cleaned.csv |
Same, human-readable backup |
01_regression/ |
regression_train.csv |
Linear Regression, Multiple Regression |
01_regression/ |
regression_test.csv |
Linear Regression, Multiple Regression |
02_classification/ |
clf_train_scaled.csv |
Logistic Regression, KNN, SVM |
02_classification/ |
clf_train_unscaled.csv |
Decision Trees, Random Forest |
02_classification/ |
clf_test_scaled.csv |
Logistic Regression, KNN, SVM |
02_classification/ |
clf_test_unscaled.csv |
Decision Trees, Random Forest |
02_classification/ |
label_map.json |
Decode integer predictions to category names |
03_clustering/ |
city_profiles_scaled.csv |
K-Means clustering |
03_clustering/ |
city_clusters.csv |
City cluster assignments + labels |
04_dimensionality/ |
pollutant_matrix_scaled.csv |
PCA, t-SNE, SVD |
04_dimensionality/ |
pca_components.csv |
Pre-computed PCA coordinates |
04_dimensionality/ |
pca_loadings.csv |
Component loadings + variance explained |
04_dimensionality/ |
tsne_sample.csv |
t-SNE 2D coordinates (15k sample) |
Cleaning Operations Applied
- Sentinel value
999→NaN(CPCB sensor error code) - Physical range validation per pollutant (unit-aware — CO stored as µg/m³)
- Forward fill short gaps ≤ 3 hours within each city
- Drop rows where all pollutants are NaN (extended outages)
- Deduplicate on city + datetime
- Parse datetime, extract month / hour / day_of_week / season
- Derive AQI_category from numeric AQI using CPCB breakpoints
Target Variables
| Task | Target | Range |
|---|---|---|
| Regression | AQI (numeric) | 0 – 500 |
| Classification | AQI category (integer encoded) | 0 = Good → 5 = Severe |
| Clustering | None (unsupervised) | — |
Related Repository
Raw source data: rachitgoyell/vayu-raw
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