statistics
Descriptive Statistics
Summary statistics with 95% UCL and full non-detect handling
UCL95non-detects
statistics
Trend Analysis
Mann-Kendall and Theil-Sen trend testing for time series
Mann-KendallTheil-Sen
statistics
Normality Testing
Shapiro-Wilk, Lilliefors and Anderson-Darling tests
distributiongoodness of fit
statistics
Hypothesis Testing
t-tests, Wilcoxon-Mann-Whitney and one-way ANOVA
t-testANOVAMann-Whitneycomparison
statistics
Sample Size and DQO
Minimum sample size for a target confidence and power
sample sizeDQOpowerplanning
visualisation
Spatial Plume Mapping
Interpolated concentration surface and plume diagnostics
plumecontourspatialinterpolationIDWheatmap
visualisation
Groundwater Contour Mapping
Water table contours, flow direction and hydraulic gradient
groundwatercontourwater tablehydraulic gradientflow directionmAHD
geospatial
Coordinate Conversion
MGA grid, GDA94/GDA2020 and latitude-longitude conversions
MGAGDA94GDA2020grid convergencescale factordatum
geotechnical
Sieve Analysis and PSD
Gradation curve, D10/D30/D60, Cu/Cc and USCS classification
PSDparticle sizegradationUSCShydrometerD50
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