Source: /home/coolhand/html/datavis/data_trove/data/policy/tariff_timeline.json
Saturn profiled 1 rows across 6 columns. The stats below are deterministic and machine-readable; the prose is a language-model interpretation of those stats (opt-in, added after the fact, never sees raw rows).
!pip install saturn-dissect
import subprocess
subprocess.run([
"saturn", "analyze", "/home/coolhand/html/datavis/data_trove/data/policy/tariff_timeline.json",
"--findings", "data-trove-tariff-timeline.json",
"--llm", "anthropic:default",
])This dataset is a single-record metadata stub describing a curated knowledge object about tariff announcements, rates, and market reactions covering 2025–2026. With only 1 row and 6 columns — most of which are unresolved 'unknown' types — there is virtually no tabular data to analyse at this stage. The meaningful content almost certainly lives inside the nested or complex fields (_fields, _key_numbers, _sources, data) that the profiler skipped. Before any analysis can proceed, those nested structures need to be unpacked and flattened into a proper tabular format.
citing: row_count · column_count · columns[0].stats.top_value · columns[1].stats.top_value · columns[2].alerts · columns[3].alerts · columns[4].alerts · columns[5].alerts
saturn.schema() · 6 columns
| column | kind | n | null% | unique | alerts |
|---|---|---|---|---|---|
| _stub | categorical | 1 | 0.0% | 1 | long_tail imbalance |
| _description | categorical | 1 | 0.0% | 1 | long_tail imbalance |
| _sources | unknown | 1 | 0.0% | — | skipped |
| _fields | unknown | 1 | 0.0% | — | skipped |
| _key_numbers | unknown | 1 | 0.0% | — | skipped |
| data | unknown | 1 | 0.0% | — | skipped |
| value | count | share |
|---|---|---|
| Tariff announcements, rates, and market reactions (2025-2026) | 1 | 100.0% |
| value | count | share |
|---|---|---|
| True | 1 | 100.0% |
| column | kind | null % |
|---|---|---|
| _stub | categorical | 0.0% |
| _description | categorical | 0.0% |
| _sources | unknown | 0.0% |
| _fields | unknown | 0.0% |
| _key_numbers | unknown | 0.0% |
| data | unknown | 0.0% |
This column, '_stub', is a single-row categorical field containing only the value 'True' with a top_rate of 1.0 and cardinality of 1. With n=1 and n_unique=1, the entire dataset appears to contain just one record, making this column a degenerate constant. The entropy of 0.0 and complete imbalance confirm it carries zero information. The '_stub' name strongly suggests this is a placeholder or scaffold artifact rather than real data.
Treatment: Drop; zero-variance constant stub column with a single row and no analytical value.
saturn.columns["_stub"].stats
| stat | value |
|---|---|
| n | 1 |
| nulls | 0 (0.0%) |
| unique | 1 |
| top_value | True |
| top_rate | 1 |
| cardinality | 1 |
| entropy | 0 |
| entropy_ratio | 0 |
| alert: long_tail | 1 singleton categories |
| alert: imbalance | top value is 100.0% of rows |
_stub.
| value | count | share |
|---|---|---|
| True | 1 | 100.0% |
This column is a dataset-level description field — a single metadata string applied uniformly to all rows, identifying the dataset as covering 'Tariff announcements, rates, and market reactions (2025-2026)'. With n=1, cardinality=1, top_rate=1.0, and entropy of 0.0, it carries zero analytical variance. The alerts for long_tail and imbalance are technically correct but trivially explained by the constant value.
Treatment: Drop before modelling — zero-variance constant column adds no predictive or descriptive information at the row level.
saturn.columns["_description"].stats
| stat | value |
|---|---|
| n | 1 |
| nulls | 0 (0.0%) |
| unique | 1 |
| top_value | Tariff announcements, rates, and market reactions (2025-2026) |
| top_rate | 1 |
| cardinality | 1 |
| entropy | 0 |
| entropy_ratio | 0 |
| alert: long_tail | 1 singleton categories |
| alert: imbalance | top value is 100.0% of rows |
_description.
| value | count | share |
|---|---|---|
| Tariff announcements, rates, and market reactions (2025-2026) | 1 | 100.0% |
_sources appears to be a metadata or provenance field tracking data origins, but the profiler skipped analysis entirely, yielding only a single row with no further statistics. With n=1 and an 'alerts: skipped' flag, there is effectively no distributional signal available to characterize this column.
Treatment: Inspect raw value manually; re-profile with full parsing if this field contains structured provenance data (e.g. JSON array) that needs unpacking.
saturn.columns["_sources"].stats
| stat | value |
|---|---|
| n | 1 |
| nulls | 0 (0.0%) |
| unique | — |
| alert: skipped | no profiler for kind=unknown |
This column ('_fields') contains only a single row and was skipped by the profiler, yielding no distributional statistics. The 'unknown' kind designation and empty stats object mean almost nothing can be inferred about its content or role. With n=1 and no uniqueness or type information, it is likely a system/metadata artifact or a structural placeholder rather than a meaningful analytical field.
Treatment: Inspect raw value manually; exclude from modelling until content and purpose are confirmed.
saturn.columns["_fields"].stats
| stat | value |
|---|---|
| n | 1 |
| nulls | 0 (0.0%) |
| unique | — |
| alert: skipped | no profiler for kind=unknown |
This column contains only a single row and no computable statistics, making it impossible to characterize its content or distribution. The 'skipped' alert indicates saturn bypassed full profiling, likely due to insufficient data volume. No meaningful inference about its role or values is possible from the evidence provided.
Treatment: Inspect raw value manually; defer profiling until more rows are available.
saturn.columns["_key_numbers"].stats
| stat | value |
|---|---|
| n | 1 |
| nulls | 0 (0.0%) |
| unique | — |
| alert: skipped | no profiler for kind=unknown |
This column contains only a single row and was skipped by the profiler, yielding no distributional statistics. With n=1 and no uniqueness or type information available, nothing meaningful can be inferred about its content or role.
Treatment: Investigate source data; column was skipped by profiler and has only 1 row—determine if it is a parsing artifact or genuine singleton before any use.
saturn.columns["data"].stats
| stat | value |
|---|---|
| n | 1 |
| nulls | 0 (0.0%) |
| unique | — |
| alert: skipped | no profiler for kind=unknown |
click to copy
@misc{saturn-data-trove-tariff-timeline-2026,
author = {Steuber, Luke},
title = {Saturn reading: data trove tariff timeline},
year ={2026},
howpublished = {\url{https://dr.eamer.dev/saturn/view/data-trove-tariff-timeline}},
note = {Profiled with saturn-dissect v0.2.0, prompt saturn-insight-v2, model anthropic:default},
}
Steuber, L. (2026). Saturn reading: data trove tariff timeline. Source: /home/coolhand/html/datavis/data_trove/data/policy/tariff_timeline.json. Profiled with saturn-dissect v0.2.0 (saturn-insight-v2, anthropic:default). Retrieved from https://dr.eamer.dev/saturn/view/data-trove-tariff-timeline