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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 1 new columns ({'__index_level_0__'})
This happened while the csv dataset builder was generating data using
hf://datasets/ClarusC64/fusion-tbr-neutron-breeder-coherence-baseline-mapping-v0.1/data/test.csv (at revision 45bea84b00742abf0e26137759a24356922a5950), [/tmp/hf-datasets-cache/medium/datasets/51746340275202-config-parquet-and-info-ClarusC64-fusion-tbr-neut-103c523b/hub/datasets--ClarusC64--fusion-tbr-neutron-breeder-coherence-baseline-mapping-v0.1/snapshots/45bea84b00742abf0e26137759a24356922a5950/data/test.csv (origin=hf://datasets/ClarusC64/fusion-tbr-neutron-breeder-coherence-baseline-mapping-v0.1@45bea84b00742abf0e26137759a24356922a5950/data/test.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 1887, in _prepare_split_single
writer.write_table(table)
File "/usr/local/lib/python3.12/site-packages/datasets/arrow_writer.py", line 675, 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
id: string
reactor_class: string
blanket_type: string
breeder_material: int64
operating_hours: double
neutron_flux_1e14_cm2s: double
spectrum_hardness_index: double
fast_flux_fraction: double
li6_enrichment_frac: double
breeder_lithium_inventory_frac: double
local_depletion_gradient: int64
helium_production_appm: double
extraction_efficiency: double
baseline_tbr: double
baseline_coherence_score: double
decoupling_flag: double
notes: string
__index_level_0__: string
-- schema metadata --
pandas: '{"index_columns": ["__index_level_0__"], "column_indexes": [{"na' + 2623
to
{'id': Value('string'), 'reactor_class': Value('string'), 'blanket_type': Value('string'), 'breeder_material': Value('string'), 'operating_hours': Value('int64'), 'neutron_flux_1e14_cm2s': Value('float64'), 'spectrum_hardness_index': Value('float64'), 'fast_flux_fraction': Value('float64'), 'li6_enrichment_frac': Value('float64'), 'breeder_lithium_inventory_frac': Value('float64'), 'local_depletion_gradient': Value('float64'), 'helium_production_appm': Value('int64'), 'extraction_efficiency': Value('float64'), 'baseline_tbr': Value('float64'), 'baseline_coherence_score': Value('float64'), 'decoupling_flag': Value('int64'), 'notes': Value('string')}
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 1736, 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 1889, 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 1 new columns ({'__index_level_0__'})
This happened while the csv dataset builder was generating data using
hf://datasets/ClarusC64/fusion-tbr-neutron-breeder-coherence-baseline-mapping-v0.1/data/test.csv (at revision 45bea84b00742abf0e26137759a24356922a5950), [/tmp/hf-datasets-cache/medium/datasets/51746340275202-config-parquet-and-info-ClarusC64-fusion-tbr-neut-103c523b/hub/datasets--ClarusC64--fusion-tbr-neutron-breeder-coherence-baseline-mapping-v0.1/snapshots/45bea84b00742abf0e26137759a24356922a5950/data/test.csv (origin=hf://datasets/ClarusC64/fusion-tbr-neutron-breeder-coherence-baseline-mapping-v0.1@45bea84b00742abf0e26137759a24356922a5950/data/test.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.
id string | reactor_class string | blanket_type string | breeder_material string | operating_hours int64 | neutron_flux_1e14_cm2s float64 | spectrum_hardness_index float64 | fast_flux_fraction float64 | li6_enrichment_frac float64 | breeder_lithium_inventory_frac float64 | local_depletion_gradient float64 | helium_production_appm int64 | extraction_efficiency float64 | baseline_tbr float64 | baseline_coherence_score float64 | decoupling_flag int64 | notes string |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
TBRB-001 | Tokamak | HCPB | Li4SiO4 | 1,200 | 4.8 | 0.42 | 0.28 | 0.6 | 0.94 | 0.06 | 120 | 0.82 | 1.12 | 0.93 | 0 | Stable baseline |
TBRB-002 | Tokamak | HCPB | Li2TiO3 | 1,500 | 5.1 | 0.45 | 0.3 | 0.6 | 0.92 | 0.08 | 140 | 0.8 | 1.1 | 0.91 | 0 | Expected coupling |
TBRB-003 | Tokamak | HCLL | LiPb | 1,800 | 5.6 | 0.5 | 0.34 | 0.3 | 0.9 | 0.1 | 160 | 0.78 | 1.08 | 0.89 | 0 | Higher fast fraction |
TBRB-004 | Tokamak | HCLL | LiPb | 2,200 | 6 | 0.55 | 0.38 | 0.3 | 0.87 | 0.13 | 190 | 0.75 | 1.05 | 0.86 | 0 | Drift starting |
TBRB-005 | Tokamak | HCPB | Li2TiO3 | 2,600 | 6.3 | 0.6 | 0.41 | 0.6 | 0.84 | 0.16 | 230 | 0.7 | 1.01 | 0.79 | 1 | Coherence weakening |
TBRB-006 | Stellarator | HCPB | Li4SiO4 | 1,300 | 4.5 | 0.4 | 0.26 | 0.6 | 0.95 | 0.05 | 110 | 0.83 | 1.13 | 0.94 | 0 | Stable |
TBRB-007 | Stellarator | HCPB | Li2TiO3 | 1,700 | 4.9 | 0.44 | 0.29 | 0.6 | 0.93 | 0.07 | 135 | 0.81 | 1.11 | 0.92 | 0 | Nominal |
TBRB-008 | Stellarator | HCLL | LiPb | 2,400 | 5.8 | 0.54 | 0.37 | 0.3 | 0.88 | 0.12 | 185 | 0.76 | 1.06 | 0.87 | 0 | Coupled response |
TBRB-009 | Tokamak | HCLL | LiPb | 3,000 | 6.6 | 0.63 | 0.45 | 0.3 | 0.82 | 0.18 | 260 | 0.66 | 0.98 | 0.74 | 1 | TBR near threshold |
TBRB-010 | Tokamak | HCPB | Li4SiO4 | 3,200 | 6.8 | 0.66 | 0.47 | 0.6 | 0.8 | 0.2 | 280 | 0.64 | 0.96 | 0.71 | 1 | Baseline decoupling risk |
Dataset goal
Establish the baseline coupling between:
neutron flux spectrum (intensity and hardness)
breeder lithiation and depletion state
extraction efficiency
resulting baseline TBR
This is the baseline layer before drift detection.
Required outputs
baseline_tbr
baseline_coherence_score
decoupling_flag
What failure looks like
spectrum hardens but TBR drops faster than expected
breeder inventory appears adequate yet TBR trends down
helium production and depletion gradients rise while extraction degrades
Primary users
fusion blanket designers
tritium plant and extraction engineering
reactor operations and fuel-cycle teams
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