Daily Streamflow
Add Water-Quality Data
Analysis Organization & Data Preparation
Add Caption
Stream Water Quality
Stream Water Quality
baytrends: Long Term Water Quality Trend Analysis
Base Day
Multiply-censored Data Conversion
Base Day
Numeric Representations
Append Date Features
Invoke a Data Viewer
Document Processing Time and Other Session Time
Create Seasonally Detrended Flow Data Set
Describe Censoring
Left-censored Data Conversion
Chesapeake Bay Program Monitoring Data, 1985-2016
Arithmetic Methods for lcens, mcens, and qw objects
Combine Values into a Vector
Water-quality Data Conversion
Probability Plotting Positions
Plot Data
Mathematical Transform Methods for lcens objects
Describe Censoring
Pretty Axis
Create Seasonally Detrended Salinty Data Set
Water-Quality Data
Print out 2nd level header (shortened pandoc.header)
Print out 3rd level header (shortened pandoc.header)
Character Representations
Prepare ANOVA table for GAM analysis
Date Conversion
Decimal Time
Print out header (shortened pandoc.header)
Expectation maximization function: Normal case, i censured
Print out 1st level header (shortened pandoc.header)
Expectation maximization function: Log-normal case, right censured
Calculate GAM residuals
Prepare table of coefficients for GAM analysis
Impute Detection Limits
Expectation maximization function: Log-normal case, i censured
Print out character vector table in wrapped mode
Appends date features to data frame
Expectation maximization function: Normal case, right censured
Coerce to a Data Frame
Water-Quality Data
Expectation maximization function: Normal case, left censured
Print out text (blended pandoc.emphasis, .verbatim, and .strong)
Expectation maximization function: Log-normal case, left censured
Expectation maximization function: Log-normal case, Cens
Print out figure title (customization of pandoc.emphasis and pandoc.strong )
Fill Missing Values
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Initialize stat.gam.result and chng.gam.result
Print out 4th level header (shortened pandoc.header)
Print out 5th level header (shortened pandoc.header)
Check Data Range -- function that checks for allowable values
Expectation maximization function: Normal case
Aggregate data layers
Print out table title (customization of pandoc.emphasis and pandoc.strong )
Plot censored gam fits vs. time
Perform GAM analysis
Event Processing
Impute Censored Values
Load Built-in GAM formulas for calculating residuals
Test whether an object can be treated in a particular way
Perform GAM analysis for Specified Season
Missing Values
Fit normal or log normal distribution; simulation in censored data
provided by Elgin Perry
phi.left and phi.right are distribution function, e.g., pnorm(q=10,mean=10,sd=1) =0.5
phi.sim is a uniform random number between phi.left and phi.right
sim is imputed value
merge flow variable into analysis data frame and update iSpec with variable name
Re-attribute df based on previous df
Create filter weights
Find Recent File Information
Reduce dataframe and parameter list based on user selected parameterFilt
Paragraph (customization of pandoc.p)
Impute Censored Values
Column Names
Pretty Axis
Retrieve USGS daily flow data in a wide format
Estimate Statistics
Format pvalues
Flow Averaged Predictions
Estimate Statistics
Import Files
Layer List
Load/Clean Excel sheet
merge salinity into analysis data frame and update iSpec with variable name
Encode in a Common Format
Recode Data
Water-Quality Data
Replace missing values
Load Built-in GAM formulas
Left-censored Data
Median Value
Length of an Object
Mutliply-censored Data
Estimate Statistics
Arithmetic Mean
Month Abbreviations
Estimate Statistics
Arithmetic Mean
Generate a Range of Colors
Compute Ratios
Line Weights
Compute and present report on percent different for log-transformed data
Print Results
Extract Model Residuals
Root-Mean-Squared and Relative Differences
Print Results
Parameter Code Information
Summarizing Linear Model Fits
Pretty Axis
Show Methods for WSqw objects
Print Results
Save R object to disk
Summarize Data
Estimate Statistics
Print Values
Print Results
Numeric Values
plots data and gam fit vs. time
Salinity data
Variance-Covariance Matrix
Sample Quantiles
Compute an estimate of difference based on GAM results
Estimate Statistics
Plot censored gam fits vs. time
Print Results
Colors
Variance Inflation Factors
qw.export
Create Daily Seasonally-adjusted Log Flow Residuals
Restructure Data
Graph Margins
Water-quality Data
Plot Parameters
Reference Line
Chesapeake Bay Program long-term tidal monitoring stations
Display Structure
Load/Clean CSV and TXT Data File
Subset an Object
Water-Quality Data
Remove Spaces
Pretty Axis
Possible Equality
Explanation
Select data for analysis from a larger data frame
Set up an Axis
Estimate Statistics
qw.import
Plot Data
Label Axes
Split Leading Qualifiers
Sorting Vectors
Parameter List
Combine Data by Rows
Estimate Statistics
Partial Value Matching
Transform Data
Conversion to class "mcens"
USGS Gages
Selected USGS parameter Codes
Historical Reporting Limits
Pretty Axis
Graphics Page
Time-series Plots
Plot Parameters