Quantitative Fatty Acid Signature Analysis in R

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Documentation for package ‘qfasar’ version 1.2.1

• DESCRIPTION file.
• User guides, package vignettes and other documentation.

Help Pages

add_cc_err	Add error to the calibration coefficients
adj_diet_fat	Adjust diet composition estimates for prey fat content
cc_aug	Calibration coefficient for an augmented signature proportion
comp_chi_gamma	Compute gamma parameter of chi-square distance measure
diet_obj_func	Diet estimation objective function
diet_pool	Pool diet estimates to combined prey types
dimac	Diversive magnetic clustering
dist_between_2_sigs	Compute the distance between two fatty acid signatures
dist_pairs_map	Creats a map of the distance between pairs of fatty acid signatures
dist_sigs_2_mean	Distance between fatty acid signatures and their mean
dist_sum_pairwise	Distance between pairs of fatty acid signatures
est_diet	Estimate predator diet composition
find_boot_ss	Find realistic bootstrap sample sizes
gof	Goodness-of-fit for modeled predator signatures
lopo	Leave-one-prey-out analysis
lopo_pool	Pool lopo results to original prey types
make_diet_grid	Generate a regular grid of diet compositions
make_diet_rand	Generate random diet compositions
make_ghost	Make a ghost prey signature
make_pred_sigs	Simulate predator signatures
make_prey_part	Make prey partition
pm_obj_func	Parameterized mean objective function
pred_beyond_prey	Identify predator signature proportions beyond range of prey
prep_fa	Prepare fatty acid information analysis
prep_sig	Prepare fatty acid signature data for analysis
sig_rep_zero	Replace invalid fatty acid signature proportions
sig_scale	Scale fatty acid signature proportions