saturn

/home/coolhand/html/datavis/data_trove/data/quirky/megaliths.json 15,464 rows sample n=15,464 seed 42 2026-05-01T18:37:12+00:00

Overview

Source/home/coolhand/html/datavis/data_trove/data/quirky/megaliths.json
Total rows15,464
Profiled sample15,464
Columns14
Generated2026-05-01T18:37:12+00:00

Insights opt-in

Model-generated narrative. These are opinions, not facts — the stats below are what saturn measured. Generated by: anthropic:claude-opus-4-7.

Errors during insight pass (15)
  • dataset:__global__:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKLQvVP4QHAqUYjaNx'}
  • column:id:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKLwRhoF2NaZPbDbPR'}
  • column:osm_type:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKMURMSEDtgSgNU7z9'}
  • column:name:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKN2fEKqy54YDLhPjR'}
  • column:lat:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKNc8mN2K1CKfVW1Nj'}
  • column:lon:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKP7eDpVsvTnmJQWSB'}
  • column:type:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKPmqMoooY8No42Fj7'}
  • column:megalith_type:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKQFrVcv4rGWGALEY9'}
  • column:description:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKQxmJHST9HSvw8awS'}
  • column:wikipedia:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKRQoohbmhCEa2JgR8'}
  • column:wikidata:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKRt5qeizPenXzU4w9'}
  • column:heritage:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKSP6VPVB9TswSmRGH'}
  • column:heritage_operator:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKSuM6amXxy1JMhqFT'}
  • column:start_date:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKY1gEnuzpZUGFHFKR'}
  • column:material:anthropic:claude-opus-4-7: BadRequestError — Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'Your credit balance is too low to access the Anthropic API. Please go to Plans & Billing to upgrade or purchase credits.'}, 'request_id': 'req_011CacLKYeNvacBiEgNbtNJW'}

Numeric correlation

id numeric

rows15,464
null0 (0.0%)
unique15,464
min24,151,805
max13,537,320,281
mean4,503,184,710
median3,411,205,876
std3,470,459,882
q12,374,723,034
q36,845,360,977
iqr4,470,637,943
skew0.891
kurtosis-0.201
n_outliers0
outlier_rate0.000
zero_rate0.000

osm_type categorical

rows15,464
null0 (0.0%)
unique2
top_valuenode
top_rate0.861
cardinality2
entropy0.582
entropy_ratio0.582
Top values (rank 1–20)
  1. node — 13,311
  2. way — 2,153

name text

37.8% rows are a single word 36.2% duplicate strings
rows15,464
null0 (0.0%)
unique9,869
len_min0
len_max84
len_mean13.647
len_median15.000
len_p9530.000
word_mean2.495
word_median2.000
n_empty4,720
n_duplicates5,595
duplicate_rate0.362
vocab_size9,447
readability_flesch_mean46.901
emoji_rate0.000
url_rate0.000
one_word_rate0.378
allcaps_rate3.17e-03
boilerplate_rate0.000
Sample values (first 10)
  1. Crow Hill Cairn Circle
  2. Arkaun
  3. Su Nuraxi
  5. Sornaichean Coir' Fhinn
  6. Shaori fortress-1
  7. Anta do Monte da Caeira 2
  8. Tomba dei Giganti
  10. Menhir von Benzingerode

lat numeric

skew=-3.09
rows15,464
null0 (0.0%)
unique15,320
min-51.809
max65.169
mean46.415
median47.592
std6.810
q142.949
q350.518
iqr7.569
skew-3.087
kurtosis26.331
n_outliers134
outlier_rate8.67e-03
zero_rate0.000

lon numeric

skew=+3.65
rows15,464
null0 (0.0%)
unique15,407
min-151.358
max144.738
mean2.618
median-1.620
std14.644
q1-3.083
q38.447
iqr11.531
skew3.654
kurtosis34.341
n_outliers676
outlier_rate0.044
zero_rate0.000

type categorical

top value is 97.7% of rows
rows15,464
null0 (0.0%)
unique19
top_valuemegalith
top_rate0.977
cardinality19
entropy0.210
entropy_ratio0.049
Top values (rank 1–20)
  1. megalith — 15,113
  2. menhir — 156
  3. dolmen — 83
  4. standing_stone — 59
  5. stone_circle — 16
  6. nuraghe — 8
  7. gallery_grave — 6
  8. passage_grave — 5
  9. lech — 4
  10. stone_ship — 3
  11. tholos — 2
  12. chamber — 2
  13. village — 1
  14. plaque — 1
  15. cist — 1
  16. long_barrow — 1
  17. chambered_cairn — 1
  18. grave_field — 1
  19. stone — 1

megalith_type categorical

rows15,464
null0 (0.0%)
unique73
top_valuemenhir
top_rate0.338
cardinality73
entropy2.749
entropy_ratio0.444
Top values (rank 1–20)
  1. menhir — 5,231
  2. dolmen — 4,501
  3. — 1,714
  4. nuraghe — 1,080
  5. stone_circle — 1,011
  6. passage_grave — 537
  7. chamber — 437
  8. long_barrow — 184
  9. alignment — 116
  10. cist — 107
  11. gallery_grave — 85
  12. standing_stone — 68
  13. stone_ship — 47
  14. tholos — 32
  15. court_tomb — 32
  16. round_barrow — 25
  17. well — 23
  18. wedge_tomb — 23
  19. cairn — 20
  20. stone — 20

description categorical

558 singleton categories top value is 95.8% of rows
rows15,464
null0 (0.0%)
unique587
top_value
top_rate0.958
cardinality587
entropy0.633
entropy_ratio0.069
Top values (rank 1–20)
  1. — 14,814
  2. Jættestue — 11
  3. Anta da Herdade da Ordem — 8
  4. Stone circle — 5
  5. Großsteingrab — 5
  6. Rest eines Großsteingrabes — 5
  7. Long Barrow — 4
  8. Dolmen — 4
  9. Langdysse — 4
  10. Four standing and one recumbent standing stone. — 4
  11. pair of two standing stones — 4
  12. Hünengrab — 3
  13. Henge / Círculo lítico — 3
  14. Menhir — 2
  15. Гармония — 2
  16. Runddysse — 2
  17. Allée couverte — 2
  18. Stendysse — 2
  19. Tumulus, dalle de couverture — 2
  20. Table, chevet, orthostates droit et gauche — 2

wikipedia text

85.2% rows are a single word 86.7% duplicate strings
rows15,464
null0 (0.0%)
unique2,058
len_min0
len_max75
len_mean4.100
len_median0.000
len_p9529.000
word_mean1.351
word_median1.000
n_empty13,060
n_duplicates13,406
duplicate_rate0.867
vocab_size2,769
readability_flesch_mean5.480
emoji_rate0.000
url_rate0.000
one_word_rate0.852
allcaps_rate0.000
boilerplate_rate0.000
Sample values (first 10)
  3. it:Su Nuraxi
  6. ka:შაორის ციხე
  10. de:Menhir von Benzingerode

wikidata text

100.0% rows are a single word 30.0% rows are all-caps 95th-percentile length under 20 chars 72.3% duplicate strings
rows15,464
null0 (0.0%)
unique4,289
len_min0
len_max10
len_mean2.667
len_median0.000
len_p9510.000
word_mean1.000
word_median1.000
n_empty10,819
n_duplicates11,175
duplicate_rate0.723
vocab_size4,288
readability_flesch_mean38.790
emoji_rate0.000
url_rate0.000
one_word_rate1.000
allcaps_rate0.300
boilerplate_rate0.000
Sample values (first 10)
  3. Q253241
  4. Q125484975
  6. Q16377805
  7. Q19834685
  10. Q17325138

heritage categorical

rows15,464
null0 (0.0%)
unique12
top_value
top_rate0.880
cardinality12
entropy0.734
entropy_ratio0.205
Top values (rank 1–20)
  1. — 13,602
  2. 2 — 1,264
  3. 3 — 205
  4. 1 — 120
  5. yes — 109
  6. no — 69
  7. Em Vias de Classificação — 60
  8. 4 — 24
  9. 7 — 8
  10. Scheduled Monument — 1
  11. 6 — 1
  12. M0021 — 1

heritage_operator categorical

rows15,464
null0 (0.0%)
unique31
top_value
top_rate0.895
cardinality31
entropy0.703
entropy_ratio0.142
Top values (rank 1–20)
  1. — 13,848
  2. mhs — 960
  3. IE:smr — 229
  4. dgpc — 185
  5. pc — 103
  6. rce — 23
  7. Historic Environment Scotland — 18
  8. cadw — 14
  9. whc — 14
  10. lda — 12
  11. nld — 9
  12. IE:smr;IE:nm — 8
  13. he — 6
  14. Cadw — 5
  15. mecd — 4
  16. DGPC — 3
  17. IE:smr:IE:nm — 3
  18. alsh — 2
  19. hs — 2
  20. raa — 2

start_date categorical

21 singleton categories top value is 99.8% of rows
rows15,464
null0 (0.0%)
unique26
top_value
top_rate0.998
cardinality26
entropy0.032
entropy_ratio6.86e-03
Top values (rank 1–20)
  1. — 15,430
  2. 1999 — 5
  3. C-30 — 4
  4. ~2000 BC — 2
  5. between 3500 and 2800 BCE — 2
  6. 2900 BC..2600 BC — 1
  7. -3000 BC — 1
  8. -2000 — 1
  9. 2004-07-01 — 1
  10. before -3250 — 1
  11. 3720 BC — 1
  12. 2800-2200 BC — 1
  13. ~5000 BCE — 1
  14. ~C30 BC — 1
  15. 2000 BC — 1
  16. Mittelneolithikum (2350 - 2150 v. u. Z.) — 1
  17. 1500 BC — 1
  18. 2800 BC..2200 BC — 1
  19. 2012-04-30 — 1
  20. 3100 BC — 1

material categorical

7 singleton categories top value is 98.4% of rows
rows15,464
null0 (0.0%)
unique13
top_value
top_rate0.984
cardinality13
entropy0.133
entropy_ratio0.036
Top values (rank 1–20)
  1. — 15,223
  2. stone — 196
  3. granite — 29
  4. sandstone — 5
  5. limestone — 2
  6. dry_stone — 2
  7. Quarzit — 1
  8. reinforced_concrete — 1
  9. stone;concrete — 1
  10. basalt — 1
  11. quartz_blanc — 1
  12. granit — 1
  13. andesite — 1