R statistical software (version 3.1.2) (www.r-project.org) was used for statistical data analysis and plotting figures.
Statistical analyses and data plotting were performed in R v3.0 (http://www.r-project.org/) statistical package with the aid of ggplot2 v0.9.8 20 package.
The statistical analysis and data plotted on the Piper diagram reveals that the surface water chemistry is mainly controlled by rock weathering with secondary contributions from agriculture and anthropogenic sources.
Statistical tests and data plotting were performed using GraphPad Prism (ver 5.00 for Windows, La Jolla, CA, USA).
Statistical analyses and data plotting were performed with GraphPad Prism (GraphPad Software Inc., San Diego, CA, USA) and MedCalc version 9.5.0.0 (MedCalc Software, Mariakerke, Belgium), respectively.
The SPSS version 16.0 software package and GraphPad Prism were used for the statistical analysis and data plotting.
The SPSS 16.0 (Inc., Chicago IL, USA) and GraphPad Prism 5 (San Diego, CA, USA) programs were used for statistical analysis and data plotting.
All statistical analyses and data plots have been performed and generated with R version 3.0.2 (2013-09-25) 'Frisbee Sanding' (R Developmentheore Team, 2008) and the packages 'Hmisc' (Harrell, 2014), 'agricolae' (Mendiburu de, 2014), 'car' (Fox and Weisberg, 2011), 'multcompView' (Graves et al., 2012) and 'multcomp' (Hothorn et al., 2008).
Statistical data were extracted from the dot plots using WinMDI software [37].
Notched box plots for descriptive statistical data for daily intakes of selected micronutrients from 6-day duplicate diets expressed as milligrams per day or micrograms per day are illustrated in Figures 2– 12, and a scatter plot of PbB versus daily intake of Ca is shown in Figure 13.
