Methods for Ecotoxicology
Calculate corrected efficacy % with Abbott's formula
Calculate corrected efficacy % with Henderson-Tilton's formula
Calculate corrected efficacy % with Schneider-Orelli's formula
Calculate corrected efficacy % with Sun-Shepard's formula
Convert Arcsin values to percentages
Calculate LC50 from a matrix with 3 columns: concentration, number of ...
Calculate LC for N between 0 (LC0) and 100 (LC100)
Internal ecotoxicology functions
Inverse error function
Generate table I from Finney1964 "Transformation of percentages to pro...
Generate table II from Finney1964 "The weighting coefficient and Q/Z"
Generate table III from Finney1964 "Maximum and minimum working probit...
Generate table IV from Finney1964 "Working probits"
Generate table IX from Finney1964 "Minimum Working Probit, Range, and ...
Generate table V from Finney1964 "The Probability, P, the Ordinate, Z,...
Generate table VI from Finney1964 "Distribution of chi^2"
Generate table VII from Finney1964 "Distribution of t"
Generate table VIII from Finney1964 "The Weighting Coefficient in Wadl...
Determine if a series is monotonically decreasing
Determine if a series is monotonically increasing
Make monotonically decreasing sequence
Smoothed Mortality Proportion (monotonically increasing sequence)
Convert percentages to Arcsin values
Convert percentages to Probit values
Approximate Standard Error of dosage
Estimate the column for Chi calculation
Probit estimation similar to the EPA's Ecological Exposure Research Di...
Probit Fiducial Limits
Probit estimation regression with Finney's method
Probit regression line
Standard Error of dosage
Standard Error of rate of increase of probit value per unit increase i...
Convert Probit values to percentages
Probit value "g"
Variance of dosage
Variance of rate of increase of probit value per unit increase in x
Calculate weighting coefficient from expected probit
Calculate the weighting coefficient
Calculate working probit
Calculate the ordinate to the normal distribution corresponding to the...
Calculate the ordinate to the normal distribution corresponding to the...
Archer Scale for assessment of leaf damage
Gauhl’s modification of Stover’s severity scoring system
Horsfall-Barratt Scale for Measuring Plant Disease
Spearman Karber estimation
Generate table 26 from Finney1964 "The Function for Planning Tests of ...
Trimmed Spearman-Karber method, as per Hamilton and EPA
WAAPP Pest Count scoring system
Implementation of the EPA's Ecological Exposure Research Division (EERD) tools (discontinued in 1999) for Probit and Trimmed Spearman-Karber Analysis. Probit and Spearman-Karber methods from Finney's book "Probit analysis a statistical treatment of the sigmoid response curve" with options for most accurate results or identical results to the book. Probit and all the tables from Finney's book (code-generated, not copied) with the generating functions included. Control correction: Abbott, Schneider-Orelli, Henderson-Tilton, Sun-Shepard. Toxicity scales: Horsfall-Barratt, Archer, Gauhl-Stover, Fullerton-Olsen, etc.