Data/code for: Endocranial volume estimates for Sts 25 (Australopithecus cf. africanus)

Description

Datasets and R code for McCarthy RC, Haque S. 2026. Endocranial volume estimates for Sts 25 (Australopithecus cf. africanus). Nature & Anthropology. * Appendix Table A1 ('Appendix_Table_A1.xlsx'): Complete dataset of chimpanzee and hominin specimens including 'Min' and 'Max' measurement values [.xlsx file]; * Code S1 ('sts25_poly_regress.R'): R code used to generate single-variable (SV) and multivariate (MV) polynomial regression equations to predict EV for Sts 25 and 10 fragmentary hominin specimens [.R file]; * Appendix Table A2 ('Appendix_Table_A2.xlsx'): Results from single-variable (SV) and multivariate (MV) polynomial regression, including logged regression coefficients and statistics, correction factors accounting for log detransformation bias, standard errors of the estimate (SEE), multiple r2, and adjusted r2 [.xlsx file]; * Dataset S2 ('Sts25_forest.csv'): Used to make Figure 2. Variables: Variable, n, Pred [point estimate], SE, SD, LB [lower bound], Point [=Pred], UB [upper bound], for 12 single-variable (SV) regressions, 4 multivariate (MV) regressions, means +/- 95% CIs, 95% PIs for SV and MV models [.csv file]; * Code S2 ('Sts25_Fig2_forest.R'): R code used to make Figure 2 forest plot using the 'Sts25_forest.csv' dataset [.R file]; * Dataset S3 ('Sts25_ridgeline.csv'): Used to make Figure 3. Variables: Specimen (chimpanzees, hominins), Group (CHI=chimp; OHM=other hominin), Variable (B-Lc, B-La, B-Pc, B-Pa, B-Lc, B-La), Measurement [in mm]. Dataset is in 'long' format [.csv file]; * Code S3 ('Sts25_Fig3_ridgeline.R'): R code used to make Figure 3 ridgeline plot using the 'Sts25_ridgeline.csv' dataset [.R file]; * Dataset S4 ('Sts25_boxplot.csv'): Used to make Figure 4. Variables: Specimen [10 fragmentary hominins], ECV [in cm3], Equation [for 12 different models], Prediction [New, Old][.csv file]; * Code S4 ('Sts25_Fig4_boxplots.R'): R code used to make Figure 4 box plots using the 'Sts25_boxplot.csv' dataset [.R file]; * Dataset S5 ('africanus_dot.csv'): Used to make Figure 5. Variables: Specimen [12 A. africanus], Value [EV best estimates, cm3], Previous [Old, This study], Reference [untitled variable][.csv file]; * Dataset S6 ('sts25_hom_dot.csv'): Used to make Figure 5. Historical EV values and additional point estimates for A. africanus specimens. Variables: Specimen [Sts 19, Sts 25, Sts 58, MLD 1, StW 505], Value [EV in cm3], Previous [Older, This study2][.csv file]; * Code S5 ('Sts25_Fig5_dotplot.R'): R code used to make Figure 5 dot plot using the 'africanus_dot.csv' and 'sts25_hom_dot.csv' datasets [.R file]

Steps to reproduce

There are instructions in the published code about how to upload published datasets, run analyses, execute code to produce figures, and save each figure as a PDF file.

Institutions

• Benedictine University

  IL, Lisle

Categories

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