Test project - Stratify solutions #31
Description
Here is a summary of the current state of this project's conversion:
> cc <- convert_project("inst/Stratify-solutions/Stratify\\ solutions")
Warning messages:
1: In create_bins(data, cuts) :
Some distances were outside bins and have been removed.
2: In create_bins(data, cuts) :
Some distances were outside bins and have been removed.
3: In create_bins(data, cuts) :
Some distances were outside bins and have been removed.
> lapply(cc, test_stats, 1:2)
$`Full geog stratification`
Statistic Distance_value mrds_value Difference Pass
1 n 88 88 0 ✓
2 parameters 4 4 0 ✓
3 AIC 315.78949 315.789556669798 0.000000211121 ✓
4 log-likelihood -153.8947 -153.8948 0 ✓
5 density 0.020906 0.02754065 0.3173562
6 CV(density) 0.2778745 0.25884407 0.06848571
7 individuals 14954 19700.2664079 0.3173911
8 CV(individuals) 0.2778745 0.25884407 0.06848571
$`Pooled f(0)`
Statistic Distance_value mrds_value Difference Pass
1 n 88 88 0 ✓
2 parameters 2 2 0 ✓
3 AIC 318.723114 318.723592371443 0.000001544825 ✓
4 Chi^2 p 0.910453618 0.91039363727 0.00006586028 ✓
5 P_a 0.60346657 0.6033303633 0.0002257569 ✓
6 CV(P_a) 0.115353502 0.116068874 0.006201585 ✓
7 log-likelihood -157.3616 -157.3618 0 ✓
8 density 0.02283272 0.03028356 0.3263227
9 CV(density) 0.30821091 0.28221084 0.08435801
10 individuals 16333 21662.311527 0.326291
11 CV(individuals) 0.30821091 0.28221084 0.08435801
$`No stratification`
Statistic Distance_value mrds_value Difference Pass
1 n 88 88 0 ✓
2 parameters 2 2 0 ✓
3 AIC 318.723114 318.723592371443 0.000001544825 ✓
4 Chi^2 p 0.910453618 0.91039363727 0.00006586028 ✓
5 P_a 0.60346657 0.6033303633 0.0002257569 ✓
6 CV(P_a) 0.115353502 0.116068874 0.006201585 ✓
7 log-likelihood -157.3616 -157.3618 0 ✓
8 density 0.02637742 0.03028356 0.1480863
9 CV(density) 0.26317999 0.28221084 0.07231112
10 individuals 18868 21662.3115267 0.1480979
11 CV(individuals) 0.26317999 0.28221084 0.07231112
Comments:
- Still some fairly big discrepencies here between the abundance/density estimates. Probably a good idea to check manually the study area size and the covered area (these don't appear to be stored in the Distance database).