{"title":"Gombe 15-min focal paths (second real site for path metrics)","generated":"2026-09-29T23:02:15.765Z","script":"scripts/compare-gombe-paths.ts","role":"held-out movement validation: no designer has seen these values; reported, never tuned against (integrator ruling, 2026-09-29)","attribution":"Real data: Pusey AE, Schroepfer-Walker K (2013) Female competition in chimpanzees. Phil Trans R Soc B 368: 20130077. Data: Dryad doi:10.5061/dryad.jg05d, CC0. Kasekela community, Gombe National Park, Tanzania, 2000–2003 (eastern chimpanzees). Derived statistics by ChimpBench; not endorsed by the authors.","privacy":"No coordinates, dates finer than a year, or identities: step lengths, angles, ratios, distances in range radii and rank-class aggregates only.","real":{"site":"Gombe Kasekela","years":[2000,2003],"rows":55076,"followDays":1223,"follows":1330,"datesWithSeveralFollows":105,"missingSequence":1192,"range":{"method":"95% kernel of all 15-min records, bandwidth at the Taï h/r 0.0484","bandwidthM":95,"rKm":1.9729,"areaKm2":12.2287,"byYear":[{"year":2000,"rKm":1.7396,"areaKm2":9.5068,"follows":275},{"year":2001,"rKm":1.9769,"areaKm2":12.2772,"follows":345},{"year":2002,"rKm":1.8069,"areaKm2":10.2573,"follows":318},{"year":2003,"rKm":1.833,"areaKm2":10.5555,"follows":392}]},"at15":{"stepM":{"median":0,"p10":0,"p90":193.6208,"n":53469},"stepR":{"median":0,"p10":0,"p90":0.0981,"n":53469},"zeroStepShare":0.5894,"turn":{"median":0.4286,"p10":0.0715,"p90":1.3986,"n":9093},"straight":{"median":0.4401,"p10":0.1235,"p90":0.7767,"n":990},"pathRate":{"median":206.0744,"p10":102.9401,"p90":347.5971,"n":990},"dailyPathKm":{"median":2.422,"p10":1.1629,"p90":4.1644,"n":990},"dailyPathR":{"median":1.2276,"p10":0.5894,"p90":2.1108,"n":990},"displacementKm":{"median":0.9247,"p10":0.2478,"p90":2.302,"n":990},"displacementR":{"median":0.4687,"p10":0.1256,"p90":1.1668,"n":990},"followSpanH":{"median":12,"p10":10.25,"p90":12.75,"n":990},"follows":1330,"fullDayFollows":990},"at30":{"stepM":{"median":2.8284,"p10":0,"p90":308.9806,"n":26329},"stepR":{"median":0.0014,"p10":0,"p90":0.1566,"n":26329},"zeroStepShare":0.4144,"turn":{"median":0.5549,"p10":0.0872,"p90":1.6773,"n":7304},"straight":{"median":0.4662,"p10":0.1281,"p90":0.8049,"n":984},"pathRate":{"median":198.5394,"p10":99.5114,"p90":338.1171,"n":984},"dailyPathKm":{"median":2.3157,"p10":1.1333,"p90":3.9622,"n":984},"dailyPathR":{"median":1.1737,"p10":0.5744,"p90":2.0083,"n":984},"displacementKm":{"median":0.9167,"p10":0.2379,"p90":2.3016,"n":984},"displacementR":{"median":0.4647,"p10":0.1206,"p90":1.1666,"n":984},"followSpanH":{"median":12,"p10":10,"p90":12.5,"n":984},"follows":1328,"fullDayFollows":984},"notes":["t is time since the follow's first record (the file has no clock times), so no time-of-day profile is possible.","59% of 15-min steps are exactly 0 m: positions repeat while the focal stays put (1-m resolution).","The 30-min statistics use every second record from the first, the resolution of the Taï and simulated follows.","The file has no focal identity or sex column, so males and females are pooled."]},"sim":{"status":"measured on older sim code","source":"artifacts/compare-movement/sim-follows.json","generated":"2026-09-29T20:17:01.366Z","simCodeHash":"3dd6f9c5e4821b59","currentSimCodeHash":"1de33cd39e442f41","seeds":[48,7,21,5,11],"yearsSampled":1,"burnInDays":180,"at30":{"stepM":{"median":2.3561,"p10":0,"p90":311.7137,"n":73857,"seeds":[2.1078,2.1767,2.6204,2.078,3.5302]},"stepR":{"median":0.004,"p10":0,"p90":0.5161,"n":73857,"seeds":[0.0036,0.0036,0.0042,0.0036,0.0063]},"turn":{"median":1.0424,"p10":0.0195,"p90":2.9243,"n":9028,"seeds":[0.9836,1.0133,0.9967,0.9924,1.181]},"straight":{"median":0.2317,"p10":0.0651,"p90":0.6808,"n":2289,"seeds":[0.2306,0.2584,0.2189,0.2308,0.2182]},"pathRate":{"median":166.4626,"p10":57.891,"p90":298.8419,"n":2289,"seeds":[165.3297,164.8378,169.8818,163.8521,167.4163]},"dailyPathKm":{"median":1.615,"p10":0.5382,"p90":3.0144,"n":2289,"seeds":[1.5794,1.6,1.6521,1.6102,1.621]},"dailyPathR":{"median":2.7118,"p10":0.8709,"p90":4.9092,"n":2289,"seeds":[2.6207,2.6963,2.6787,2.6776,2.9449]},"displacementKm":{"median":0.3495,"p10":0.0975,"p90":0.7607,"n":2289,"seeds":[0.3244,0.3817,0.3402,0.3431,0.3534]},"displacementR":{"median":0.5782,"p10":0.1648,"p90":1.269,"n":2289,"seeds":[0.5386,0.6438,0.5503,0.5754,0.6016]},"follows":8640,"fullDayFollows":2289},"at15":"pending: the cached simulated follows copy the Taï 30-min schedule; 15-min simulated follows need a new compare-movement run","note":"Simulated follows copy Taï group-day schedules (focal sex and record times), so their spans and gaps follow Taï, not Gombe. Full-day rules are the same on every side (≥ 8 h, no gap > 1 h)."},"distributions":{"stepM30":{"lo":0,"hi":800,"bins":40,"gombe":[0.0254,0.0003,0.0009,0.0015,0.002,0.0021,0.0019,0.0018,0.0017,0.0015,0.0014,0.0012,0.0011,0.0009,0.0009,0.0008,0.0006,0.0005,0.0005,0.0003,0.0004,0.0003,0.0003,0.0002,0.0002,0.0001,0.0002,0.0001,0.0001,0.0001,0.0001,0.0001,0.0001,0,0,0,0,0,0,0],"sim":[0.0287,0.0023,0.0013,0.0013,0.0012,0.0013,0.0013,0.0012,0.0011,0.001,0.0009,0.0008,0.0008,0.0007,0.0006,0.0006,0.0006,0.0005,0.0005,0.0004,0.0004,0.0003,0.0003,0.0003,0.0003,0.0002,0.0002,0.0002,0.0002,0.0002,0.0003,0.0001,0,0,0,0,0,0,0,0]},"stepR30":{"lo":0,"hi":0.4,"bins":40,"gombe":[50.7121,0.4748,1.7205,2.9511,3.9234,4.0792,3.95,3.6424,3.3347,3.0613,2.7574,2.5485,2.1003,1.9636,1.6939,1.5724,1.204,1.0901,1.0141,0.7634,0.733,0.6609,0.5165,0.4482,0.414,0.319,0.319,0.2393,0.3228,0.1823,0.1633,0.1785,0.1253,0.1025,0.057,0.0912,0.0798,0.0532,0.0494,0.0456],"sim":[53.2272,1.7967,1.7859,1.7074,1.6424,1.2267,0.9058,0.8056,0.7826,0.7582,0.8151,0.7772,0.7176,0.8056,0.8151,0.7758,0.7785,0.8097,0.7894,0.7515,0.8029,0.7379,0.7447,0.7623,0.7366,0.7501,0.6201,0.6634,0.6905,0.5714,0.6228,0.6607,0.5849,0.5578,0.5768,0.5267,0.4888,0.5213,0.547,0.482]},"turn30":{"lo":0,"hi":3.1416,"bins":40,"gombe":[1.1435,1.0302,1.0076,0.95,0.7391,0.7722,0.6676,0.6607,0.6032,0.4672,0.4881,0.4428,0.4114,0.3486,0.326,0.3033,0.2632,0.2371,0.2109,0.1778,0.1586,0.1412,0.1185,0.1098,0.1255,0.0941,0.0994,0.0784,0.0662,0.068,0.0488,0.0523,0.0575,0.0366,0.0523,0.0384,0.0296,0.0244,0.0384,0.0436],"sim":[2.1578,0.6375,0.5387,0.4372,0.4019,0.3413,0.3004,0.2553,0.2567,0.2708,0.2271,0.2524,0.2426,0.1862,0.2073,0.1974,0.1678,0.196,0.1636,0.1932,0.1777,0.2045,0.1862,0.1735,0.1678,0.1918,0.1833,0.1904,0.2257,0.1904,0.2228,0.2412,0.2581,0.2327,0.2919,0.2877,0.3342,0.3639,0.3766,0.5994]},"stepM15":{"lo":0,"hi":400,"bins":40,"gombe":[0.0665,0,0.0001,0.0004,0.0008,0.0011,0.0014,0.0017,0.0019,0.002,0.0018,0.0019,0.0017,0.0016,0.0016,0.0014,0.0013,0.0012,0.0012,0.0009,0.0009,0.0008,0.0008,0.0007,0.0006,0.0006,0.0005,0.0004,0.0004,0.0004,0.0003,0.0003,0.0002,0.0002,0.0002,0.0002,0.0002,0.0002,0.0001,0.0001],"sim":null}},"femaleCores":{"method":"AlonePoints (first daily position of each female seen alone). 50% core per female: the half of her points nearest their mean, convex hull (the source used BIOTAS 50% MCPs; its peeling rule is not stated). Area as a share of the community range (π r²), equal-area radius and core-centre distance from the range centre in r. Females with ≥ 10 points.","byRank":[{"rank":"H","females":4,"points":445,"areaFrac":{"median":0.0637,"p10":0.0488,"p90":0.1026,"n":4},"radiusR":{"median":0.252,"p10":0.2207,"p90":0.3184,"n":4},"centreDistR":{"median":0.3191,"p10":0.2778,"p90":0.3581,"n":4},"values":[{"areaFrac":0.0453,"centreDistR":0.2675},{"areaFrac":0.0572,"centreDistR":0.3362},{"areaFrac":0.0702,"centreDistR":0.3675},{"areaFrac":0.1165,"centreDistR":0.3019}]},{"rank":"M","females":10,"points":447,"areaFrac":{"median":0.078,"p10":0.0448,"p90":0.1163,"n":10},"radiusR":{"median":0.2789,"p10":0.2116,"p90":0.3398,"n":10},"centreDistR":{"median":0.5128,"p10":0.2566,"p90":0.8084,"n":10},"values":[{"areaFrac":0.0436,"centreDistR":0.7753},{"areaFrac":0.0449,"centreDistR":0.5459},{"areaFrac":0.0516,"centreDistR":0.6968},{"areaFrac":0.0669,"centreDistR":1.1058},{"areaFrac":0.0699,"centreDistR":0.7475},{"areaFrac":0.086,"centreDistR":0.2705},{"areaFrac":0.0895,"centreDistR":0.4798},{"areaFrac":0.1033,"centreDistR":0.131},{"areaFrac":0.109,"centreDistR":0.3338},{"areaFrac":0.182,"centreDistR":0.3687}]},{"rank":"L","females":3,"points":143,"areaFrac":{"median":0.0925,"p10":0.0769,"p90":0.1003,"n":3},"radiusR":{"median":0.3041,"p10":0.277,"p90":0.3166,"n":3},"centreDistR":{"median":0.1619,"p10":0.1268,"p90":0.4478,"n":3},"values":[{"areaFrac":0.073,"centreDistR":0.1619},{"areaFrac":0.0925,"centreDistR":0.1181},{"areaFrac":0.1022,"centreDistR":0.5193}]}],"sim":"pending: the observer does not yet record where each female is first seen alone"}}