tests/testthat/_snaps/dfuncVal_Negexp.md
In tmcd82070/Rdistance: Density and Abundance from Distance-Sampling Surveys
negexp-MinimumInputs
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~
groupsize(groupsize), likelihood = lhood)
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.712969 0.05801384 -64.00144 0
Convergence: Success
Function: NEGEXP
Strip: 0 [m] to 207 [m]
Effective strip width (ESW): 40.71316 [m]
Probability of detection: 0.1966819
Scaling: g(0 [m]) = 1
Log likelihood: -1663.952
AICc: 3329.915
Surveyed Units: 36000 [m]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 0.0001275864 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 523742.1
negexp-NoCovar
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ 1 +
groupsize(groupsize), likelihood = lhood, w.lo = w.lo, w.hi = w.hi,
expansions = 0, series = "cosine", x.scl = 0, g.x.scl = 1,
outputUnits = "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.760954 0.06845063 -54.94404 0
Convergence: Success
Function: NEGEXP
Strip: 0 [m] to 150 [m]
Effective strip width (ESW): 41.67721 [m]
Probability of detection: 0.2778481
Scaling: g(0 [m]) = 1
Log likelihood: -1630.893
AICc: 3263.797
Surveyed Units: 36000 [m]
Individuals seen: 371 in 353 groups
Average group size: 1.050992
Group size range: 1 to 3
Density in sampled area: 0.0001236354 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 507523.2
negexp-ContinuousCovar
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ bare +
groupsize(groupsize), likelihood = lhood, w.lo = w.lo, w.hi = w.hi,
expansions = 0, series = "cosine", x.scl = 0, g.x.scl = 1,
outputUnits = "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -2.98953113 0.252782161 -11.826511 2.847311e-32
bare -0.01359077 0.004521655 -3.005707 2.649638e-03
Convergence: Success
Function: NEGEXP
Strip: 0 [m] to 150 [m]
Average effective strip width (ESW): 42.0115 [m] (range 29.95859 [m] to 54.96368 [m])
Average probability of detection: 0.2800767 (range 0.1997239 to 0.3664245)
Scaling: g(0 [m]) = 1
Log likelihood: -1626.391
AICc: 3256.816
Surveyed Units: 36000 [m]
Individuals seen: 371 in 353 groups
Average group size: 1.050992
Group size range: 1 to 3
Density in sampled area: 0.0001264913 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 519246.7
negexp-FactorCovar
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ observer +
groupsize(groupsize), likelihood = lhood, w.lo = w.lo, w.hi = w.hi,
expansions = 0, series = "cosine", x.scl = 0, g.x.scl = 1,
outputUnits = "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.81382488 0.1521734 -25.06235796 1.280314e-138
observerobs2 -0.14929545 0.2485709 -0.60061512 5.480964e-01
observerobs3 0.04891655 0.2045285 0.23916745 8.109757e-01
observerobs4 0.36577768 0.2120902 1.72463270 8.459369e-02
observerobs5 0.01950566 0.2139414 0.09117292 9.273552e-01
Convergence: Success
Function: NEGEXP
Strip: 0 [m] to 150 [m]
Average effective strip width (ESW): 41.94674 [m] (range 31.17263 [m] to 49.57912 [m])
Average probability of detection: 0.279645 (range 0.2078175 to 0.3305275)
Scaling: g(0 [m]) = 1
Log likelihood: -1628.324
AICc: 3266.822
Surveyed Units: 36000 [m]
Individuals seen: 371 in 353 groups
Average group size: 1.050992
Group size range: 1 to 3
Density in sampled area: 0.0001249166 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 512782.6
negexp-NoCovarWloWhi
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ 1 +
groupsize(groupsize), likelihood = lhood, w.lo = w.20, w.hi = w.hi,
expansions = 0, series = "cosine", x.scl = w.20, g.x.scl = 1,
outputUnits = "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.792642 0.07264876 -52.20518 0
Convergence: Success
Function: NEGEXP
Strip: 2 [m] to 150 [m]
Effective strip width (ESW): 42.79363 [m]
Probability of detection: 0.2891462
Scaling: g(2 [m]) = 1
Log likelihood: -1528.975
AICc: 3059.963
Surveyed Units: 36000 [m]
Individuals seen: 347 in 330 groups
Average group size: 1.051515
Group size range: 1 to 3
Density in sampled area: 0.0001126206 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 462307.5
negexp-NoCovarWlo
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ 1 +
groupsize(groupsize), likelihood = lhood, w.lo = w.20, expansions =
0, series = "cosine", x.scl = w.20, g.x.scl = 1, outputUnits = "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.73547 0.06060492 -61.63641 0
Convergence: Success
Function: NEGEXP
Strip: 2 [m] to 207 [m]
Effective strip width (ESW): 41.59305 [m]
Probability of detection: 0.2028929
Scaling: g(2 [m]) = 1
Log likelihood: -1562.078
AICc: 3126.168
Surveyed Units: 36000 [m]
Individuals seen: 350 in 333 groups
Average group size: 1.051051
Group size range: 1 to 3
Density in sampled area: 0.0001168732 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 479764.3
negexp-NoCovarsFt
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ 1 +
groupsize(groupsize), likelihood = lhood, outputUnits = "ft")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -4.901069 0.05801385 -84.48102 0
Convergence: Success
Function: NEGEXP
Strip: 0 [ft] to 679.1339 [ft]
Effective strip width (ESW): 133.5734 [ft]
Probability of detection: 0.1966819
Scaling: g(0 [ft]) = 1
Log likelihood: -2086.915
AICc: 4175.842
Surveyed Units: 118110.2 [ft]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 1.185316e-05 [1/ft^2]
Abundance in 44185852261 [ft^2] study area: 523742
negexp-NoCovarExpansions
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ 1 +
groupsize(groupsize), likelihood = lhood, expansions = 2, outputUnits
= "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.55545953 0.1136070 -31.2961276 5.268202e-215
a1 -0.07392903 0.1878678 -0.3935162 6.939382e-01
a2 -0.24178850 0.1154809 -2.0937531 3.628198e-02
Convergence: Success
Function: NEGEXP with 2 expansion(s) of COSINE series
Strip: 0 [m] to 207 [m]
Effective strip width (ESW): 45.74097 [m]
Probability of detection: 0.2209709
Scaling: g(0 [m]) = 1
Log likelihood: -1659.437
AICc: 3324.942
Surveyed Units: 36000 [m]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 0.0001135622 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 466172.7
negexp-ContCovarExpansions
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ bare +
groupsize(groupsize), likelihood = lhood, expansions = 2, outputUnits
= "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -2.72609129 0.218953210 -12.4505655 1.388578e-35
bare -0.01358029 0.003622584 -3.7487865 1.776923e-04
a1 -0.13218438 0.190557576 -0.6936716 4.878882e-01
a2 -0.25877710 0.118296110 -2.1875368 2.870336e-02
Convergence: Success
Function: NEGEXP with 2 expansion(s) of COSINE series
Strip: 0 [m] to 207 [m]
Average effective strip width (ESW): 47.24028 [m] (range 30.01992 [m] to 67.58551 [m])
Average probability of detection: 0.2282139 (range 0.1450238 to 0.3265001)
Scaling: g(0 [m]) = 1
Log likelihood: -1652.409
AICc: 3312.932
Surveyed Units: 36000 [m]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 0.0001160719 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 476475
negexp-ContCovarExpansionsScaling
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ bare +
groupsize(groupsize), likelihood = lhood, expansions = 2, outputUnits
= "m", x.scl = xScl, g.x.scl = gXscl)
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -2.72609129 0.218953210 -12.4505655 1.388578e-35
bare -0.01358029 0.003622584 -3.7487865 1.776923e-04
a1 -0.13218438 0.190557575 -0.6936716 4.878882e-01
a2 -0.25877710 0.118296110 -2.1875368 2.870336e-02
Convergence: Success
Function: NEGEXP with 2 expansion(s) of COSINE series
Strip: 0 [m] to 207 [m]
Average effective strip width (ESW): 35.43021 [m] (range 22.51494 [m] to 50.68913 [m])
Average probability of detection: 0.1711604 (range 0.1087678 to 0.244875)
Scaling: g(0 [m]) = 0.75
Log likelihood: -1652.409
AICc: 3312.932
Surveyed Units: 36000 [m]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 0.0001547625 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 635299.9
negexp-Bootstraps
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~
groupsize(groupsize), likelihood = lhood)
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.712969 0.05801384 -64.00144 0
Convergence: Success
Function: NEGEXP
Strip: 0 [m] to 207 [m]
Effective strip width (ESW): 40.71316 [m]
Probability of detection: 0.1966819
Scaling: g(0 [m]) = 1
Log likelihood: -1663.952
AICc: 3329.915
Surveyed Units: 36000 [m]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 0.0001275864 [1/m^2]
95% CI: 0.0001002809 [1/m^2] to 0.000148606 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 523742.1
95% CI: 411653.3 to 610027.6
tmcd82070/Rdistance documentation built on April 13, 2025, 1:38 p.m.
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negexp-MinimumInputs
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~
groupsize(groupsize), likelihood = lhood)
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.712969 0.05801384 -64.00144 0
Convergence: Success
Function: NEGEXP
Strip: 0 [m] to 207 [m]
Effective strip width (ESW): 40.71316 [m]
Probability of detection: 0.1966819
Scaling: g(0 [m]) = 1
Log likelihood: -1663.952
AICc: 3329.915
Surveyed Units: 36000 [m]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 0.0001275864 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 523742.1
negexp-NoCovar
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ 1 +
groupsize(groupsize), likelihood = lhood, w.lo = w.lo, w.hi = w.hi,
expansions = 0, series = "cosine", x.scl = 0, g.x.scl = 1,
outputUnits = "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.760954 0.06845063 -54.94404 0
Convergence: Success
Function: NEGEXP
Strip: 0 [m] to 150 [m]
Effective strip width (ESW): 41.67721 [m]
Probability of detection: 0.2778481
Scaling: g(0 [m]) = 1
Log likelihood: -1630.893
AICc: 3263.797
Surveyed Units: 36000 [m]
Individuals seen: 371 in 353 groups
Average group size: 1.050992
Group size range: 1 to 3
Density in sampled area: 0.0001236354 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 507523.2
negexp-ContinuousCovar
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ bare +
groupsize(groupsize), likelihood = lhood, w.lo = w.lo, w.hi = w.hi,
expansions = 0, series = "cosine", x.scl = 0, g.x.scl = 1,
outputUnits = "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -2.98953113 0.252782161 -11.826511 2.847311e-32
bare -0.01359077 0.004521655 -3.005707 2.649638e-03
Convergence: Success
Function: NEGEXP
Strip: 0 [m] to 150 [m]
Average effective strip width (ESW): 42.0115 [m] (range 29.95859 [m] to 54.96368 [m])
Average probability of detection: 0.2800767 (range 0.1997239 to 0.3664245)
Scaling: g(0 [m]) = 1
Log likelihood: -1626.391
AICc: 3256.816
Surveyed Units: 36000 [m]
Individuals seen: 371 in 353 groups
Average group size: 1.050992
Group size range: 1 to 3
Density in sampled area: 0.0001264913 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 519246.7
negexp-FactorCovar
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ observer +
groupsize(groupsize), likelihood = lhood, w.lo = w.lo, w.hi = w.hi,
expansions = 0, series = "cosine", x.scl = 0, g.x.scl = 1,
outputUnits = "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.81382488 0.1521734 -25.06235796 1.280314e-138
observerobs2 -0.14929545 0.2485709 -0.60061512 5.480964e-01
observerobs3 0.04891655 0.2045285 0.23916745 8.109757e-01
observerobs4 0.36577768 0.2120902 1.72463270 8.459369e-02
observerobs5 0.01950566 0.2139414 0.09117292 9.273552e-01
Convergence: Success
Function: NEGEXP
Strip: 0 [m] to 150 [m]
Average effective strip width (ESW): 41.94674 [m] (range 31.17263 [m] to 49.57912 [m])
Average probability of detection: 0.279645 (range 0.2078175 to 0.3305275)
Scaling: g(0 [m]) = 1
Log likelihood: -1628.324
AICc: 3266.822
Surveyed Units: 36000 [m]
Individuals seen: 371 in 353 groups
Average group size: 1.050992
Group size range: 1 to 3
Density in sampled area: 0.0001249166 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 512782.6
negexp-NoCovarWloWhi
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ 1 +
groupsize(groupsize), likelihood = lhood, w.lo = w.20, w.hi = w.hi,
expansions = 0, series = "cosine", x.scl = w.20, g.x.scl = 1,
outputUnits = "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.792642 0.07264876 -52.20518 0
Convergence: Success
Function: NEGEXP
Strip: 2 [m] to 150 [m]
Effective strip width (ESW): 42.79363 [m]
Probability of detection: 0.2891462
Scaling: g(2 [m]) = 1
Log likelihood: -1528.975
AICc: 3059.963
Surveyed Units: 36000 [m]
Individuals seen: 347 in 330 groups
Average group size: 1.051515
Group size range: 1 to 3
Density in sampled area: 0.0001126206 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 462307.5
negexp-NoCovarWlo
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ 1 +
groupsize(groupsize), likelihood = lhood, w.lo = w.20, expansions =
0, series = "cosine", x.scl = w.20, g.x.scl = 1, outputUnits = "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.73547 0.06060492 -61.63641 0
Convergence: Success
Function: NEGEXP
Strip: 2 [m] to 207 [m]
Effective strip width (ESW): 41.59305 [m]
Probability of detection: 0.2028929
Scaling: g(2 [m]) = 1
Log likelihood: -1562.078
AICc: 3126.168
Surveyed Units: 36000 [m]
Individuals seen: 350 in 333 groups
Average group size: 1.051051
Group size range: 1 to 3
Density in sampled area: 0.0001168732 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 479764.3
negexp-NoCovarsFt
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ 1 +
groupsize(groupsize), likelihood = lhood, outputUnits = "ft")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -4.901069 0.05801385 -84.48102 0
Convergence: Success
Function: NEGEXP
Strip: 0 [ft] to 679.1339 [ft]
Effective strip width (ESW): 133.5734 [ft]
Probability of detection: 0.1966819
Scaling: g(0 [ft]) = 1
Log likelihood: -2086.915
AICc: 4175.842
Surveyed Units: 118110.2 [ft]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 1.185316e-05 [1/ft^2]
Abundance in 44185852261 [ft^2] study area: 523742
negexp-NoCovarExpansions
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ 1 +
groupsize(groupsize), likelihood = lhood, expansions = 2, outputUnits
= "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.55545953 0.1136070 -31.2961276 5.268202e-215
a1 -0.07392903 0.1878678 -0.3935162 6.939382e-01
a2 -0.24178850 0.1154809 -2.0937531 3.628198e-02
Convergence: Success
Function: NEGEXP with 2 expansion(s) of COSINE series
Strip: 0 [m] to 207 [m]
Effective strip width (ESW): 45.74097 [m]
Probability of detection: 0.2209709
Scaling: g(0 [m]) = 1
Log likelihood: -1659.437
AICc: 3324.942
Surveyed Units: 36000 [m]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 0.0001135622 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 466172.7
negexp-ContCovarExpansions
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ bare +
groupsize(groupsize), likelihood = lhood, expansions = 2, outputUnits
= "m")
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -2.72609129 0.218953210 -12.4505655 1.388578e-35
bare -0.01358029 0.003622584 -3.7487865 1.776923e-04
a1 -0.13218438 0.190557576 -0.6936716 4.878882e-01
a2 -0.25877710 0.118296110 -2.1875368 2.870336e-02
Convergence: Success
Function: NEGEXP with 2 expansion(s) of COSINE series
Strip: 0 [m] to 207 [m]
Average effective strip width (ESW): 47.24028 [m] (range 30.01992 [m] to 67.58551 [m])
Average probability of detection: 0.2282139 (range 0.1450238 to 0.3265001)
Scaling: g(0 [m]) = 1
Log likelihood: -1652.409
AICc: 3312.932
Surveyed Units: 36000 [m]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 0.0001160719 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 476475
negexp-ContCovarExpansionsScaling
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~ bare +
groupsize(groupsize), likelihood = lhood, expansions = 2, outputUnits
= "m", x.scl = xScl, g.x.scl = gXscl)
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -2.72609129 0.218953210 -12.4505655 1.388578e-35
bare -0.01358029 0.003622584 -3.7487865 1.776923e-04
a1 -0.13218438 0.190557575 -0.6936716 4.878882e-01
a2 -0.25877710 0.118296110 -2.1875368 2.870336e-02
Convergence: Success
Function: NEGEXP with 2 expansion(s) of COSINE series
Strip: 0 [m] to 207 [m]
Average effective strip width (ESW): 35.43021 [m] (range 22.51494 [m] to 50.68913 [m])
Average probability of detection: 0.1711604 (range 0.1087678 to 0.244875)
Scaling: g(0 [m]) = 0.75
Log likelihood: -1652.409
AICc: 3312.932
Surveyed Units: 36000 [m]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 0.0001547625 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 635299.9
negexp-Bootstraps
Code
summary(fit)
Output
Call: dfuncEstim(data = sparrowDf, formula = dist ~
groupsize(groupsize), likelihood = lhood)
Coefficients:
Estimate SE z p(>|z|)
(Intercept) -3.712969 0.05801384 -64.00144 0
Convergence: Success
Function: NEGEXP
Strip: 0 [m] to 207 [m]
Effective strip width (ESW): 40.71316 [m]
Probability of detection: 0.1966819
Scaling: g(0 [m]) = 1
Log likelihood: -1663.952
AICc: 3329.915
Surveyed Units: 36000 [m]
Individuals seen: 374 in 356 groups
Average group size: 1.050562
Group size range: 1 to 3
Density in sampled area: 0.0001275864 [1/m^2]
95% CI: 0.0001002809 [1/m^2] to 0.000148606 [1/m^2]
Abundance in 4.105e+09 [m^2] study area: 523742.1
95% CI: 411653.3 to 610027.6
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