Package index • AHGestimation

AHG estimation

General tools for fitting AHG relations

ahg_estimate(): Properly estimate AHG values

best_optimal(): Report best optimal

calc_nsga(): Calculate NSGA2 AHG

compute_ahg(): Approximate AHG relationships

min_max(): Find thresholds for coefficient and exponent limits.

mismash(): Compute all combos!

Data Preprocessing

Basic Data Filters

date_filter(): Implements filtering by date

mad_filter(): Implements filtering by median absolute deviation

nls_filter(): Implements NLS filtering

qva_filter(): Implements filtering by continuity

significance_check(): Implements significance check

Hydraulic Estimates

Estimating general hydraulic characteristics

compute_channel_slope(): Calculate the slope of 3D linestring

compute_hydraulic_params(): Approximate channel coeffiecent

compute_n(): Approximate Roughness

cross_section(): Approximate channel shape

extract_thalweg(): Extract Thalweg From a data.frame of cross sections, a classified thalweg can be extracted as the connected LINESTRING

slope_matrix() slope_weighted() slope_mean(): Calculate the gradient of line segments from a 3D matrix of coordinates

Evaluation

Series evaluation

nrmse(): Normalized Root Mean Square Error

pbias(): Percent Bias

Sample Data

Manual feild measurments from USGS-01096500

nwis: Sample gage data Manual measurements made at NWIS site 01096500 Q_cms is a mandatory argument and at least one of TW_m, V_ms, or Y_m.