Previous meetings
2024-05-09
1:00 - 2:00 SacPAS Egg Growth tool tutorial: How to manage and execute bulk runs and user-defined scenarios (Nick Beer, University of Washington)
2:00 - 2:40 A simple workflow to classify drone imagery using texture analysis (Shruti Khanna, CDFW)
2:40 - 3:10 Working with targets workflow (Ryan Peek, CDFW)
2023-11-09
1:00 - 1:20 Project-oriented workflows and file management in R (Corey Clatterbuck, SWRCB - OIMA)
1:20 - 1:35 Regular Expressions (regex) - it’s magic if it works (Rosemary Hartman, DWR)
1:35 - 2:00 Datasheet Hoarding: When do you let go of your physical datasheets? (Tim Malinich, CDFW)
2023-08-10
1:00 - 1:05 Welcome (Rosemary Hartman, DWR)
1:05 - 1:35 Updates to Bay-Delta Live - Explore Data & Time Series Visualizations (Dave Osti, 34 North)
1:35 - 1:55 CVPIA Decision Support Models (Mike Urkov, The Urkov Group)
1:55 - 2:15 Date & Time gotchas (Myfanwy Johnston, CFS)
2:15 - 2:20 Break
2:20 - 2:50 An introduction to the targets package (Travis Hinkelman, ESA)
2:50 - 3:30 Mixed models - what they are, why you should use them, and how you code them in R (Rosemary Hartman, DWR) [slides, code]
2023-05-11
All presentations will be geared for people with some knowledge of R, but who consider themselves beginners. Most presentations will use the CDFW Fall Midwater Trawl data, available here.
1:05 - 1:30 Data Manipulation - filtering, joining, selecting, and summarizing (Rosemary Hartman DWR)
1:30 - 2:00 Very basic statistics - linear models and ANOVAs (Rosemary Hartman, DWR)
2:00 - 2:30 Intro to ggplot2 (Kyle Hardage, DWR)
2:40 - 3:10 Basic Maps (James White, CDFW)
3:10 - 3:40 Colors and color-blind friendly palettes (Dan Ellis, CDFW)
2023-02-09
1:00 - 1:05 Welcome (Rosemary Hartman, DWR)
1:05 - 1:15 Fun with Imagery: AI Restoration (Dan Constable, Delta Council)
1:15 - 1:45 R Markdown and Quarto: Beginner steps in automating reports and handouts (Barb Byrne, NMFS)
1:45 - 2:05 QC Scripts in R for over 60 years of Summer Townet (Tim Malinich, CDFW)
2:05 - 2:25 Planning for data science beginners session during May meeting
2:25 - 2:30 Break
2:30 - 3:00 Exploring invertebrate communities in restored wetlands using Bayesian hierarchical models and PERMANOVAs (Gabriel Ng, CDFW)
3:00 - 4:00 Late Holocene environmental change in coastal lagoons of Yucatan, Mexico (Kyle Hardage, DWR)
2022-11-10
1:00 - 1:05 Welcome (Rosemary Hartman, DWR)
1:05 - 1:15 BayDeltaLive.com Data Access and Graphing (Dave Osti, 34 North)
1:15 - 1:35 Do aquifers have fingerprints? Cluster analysis of multi-well geochemistry in the Sacramento Valley (Kyle Hardage, DWR)
1:35 - 1:55 Comparing simple features using the mapview package (Kyle Hardage, DWR)
1:55 - 2:00 Break
2:00 - 2:30 Dates and Times - why are they so hard? (Rosemary Hartman, DWR)
2022-05-12
1:00 - 1:20 Microsoft R Open: multi-threaded computing (Kyle Hardage, DWR)
1:20 - 1:50 Working with satellite raster data in R (Dave Bosworth, DWR)
1:50 - 1:55 Break
1:55 - 2:15 Assessing multinomial logistic regression models (Christian Denney, UC Davis)
2:15 - 2:45 Small, Medium, Large - An introduction to ordinal regression (Rosemary Hartman, DWR)
2022-02-10
1:00 - 1:05 Welcome (Travis Hinkelman, ESA)
1:05 - 1:25 Relativity in the univeRse: file path behavior in different workflows (Kyle Hardage, DWR)
1:25 - 1:55 Wrangling Ridiculous River Data with R: Linking Biological Stream Condition with Flow Alteration (Ryan Peek, UC Davis Center for Watershed Sciences)
1:55 - 2:00 Break
2:00 - 2:30 An accessible, integrated database of 9 (and counting) fish surveys in the Bay-Delta (Sam Bashevkin, Delta Science Program and Jeanette Clark, NCEAS)
2021-11-18
1:00 - 1:05 Welcome (Rosemary Hartman, DWR)
1:05 - 1:25 Points to linear isopleth, or how I mapped large wood density (Derek Acomb, CDFW)
1:25 - 1:45 Preliminary responses of the food web to tidal wetland restoration (Christy Bowles, CDFW)
1:45 - 1:50 Break
1:50 - 2:20 Fun with crowd-sourced data - iNaturalist data with the rinat package (Rosemary Hartman, DWR). We’ll also be learning how to use the taxize package to aggregate taxonomic data into different levels and make treemap plots and ridgeline plots.
2:20 - 2:45 An introduction to lapply, sapply, and mapply (Travis Hinkelman, ESA)
2021-08-12
1:00 - 1:05 Welcome (Rosemary Hartman, DWR)
1:05 - 1:45 Bayesian Network analysis - fun but probably dangerous. (Rosemary Hartman, DWR)
1:45 - 2:15 Application of MARSS to analyze 40 years of fish abundance data (Denise Colombano, UC Berkeley)
2:15 - 2:20 Break
2:20 - 2:50 Creating reproducible reports using R Markdown (James White, CDFW)
2:50 - 3:00 HEC-DSS and R (Travis Hinkelman, ESA)
2021-05-13
1:00 - 1:05 Welcome (Rosemary Hartman, DWR)
1:05 - 1:35 Folsom Dam Power Bypass for water temperature management: Evaluation using SacPAS egg mortality tool (Barb Byrne, NMFS)
1:35 - 2:05 The artemis R package for eDNA analysis (Myfanwy Johnston, CFS)
2:05 - 2:15 Break
2:15 - 3:15 Making metadata documents with EMLaide (Sadie Gill, FlowWest)
3:15 - 3:45 Introduction to the officer package for manipulating Word and PowerPoint documents from R (Travis Hinkelman, ESA)
2021-02-11
1:00 - 1:05 Welcome (Rosemary Hartman, DWR)
1:05 - 2:00 Bringing open science to Tampa Bay with reproducible workflows and dynamic documents (Marcus Beck, TBEP)
2:00 - 2:20 Building automated reporting tools for the National Estuarine Research Reserve System using the SWMPr family of packages (Julie Padilla, LimnoTech)
2:20 - 2:25 Break
2:25 - 3:05 Knowledge to Practice (K2P) with the Global Water Pathogen Project: An end-to-end solution for water safety with an interface, back-end R model, and data management solutions (Matthew Verbyla, SDSU)
3:05 - 3:25 Delta Adapts: flood scenarios Shiny app (Molly Williams, Delta Council)
3:25 - 3:45 R packages relevant to IEP (Nick Rasmussen, DWR)
3:45 - 4:00 My first pet python, analyzing precipitation (Derek Acomb, CDFW)
2020-11-12
1:00 - 1:05 Introductions and welcome (Rosemary Hartman, DWR)
1:05 - 1:25 Calling all data wranglers: support the Outlier Detection Working Group! (Michael Koohafkan, DWR)
1:25 - 1:45 CA Public Drinking Water System Electronic Annual Report - Public Dataset as of July 2020 (Stephen Burke, Water Boards)
1:45 - 1:50 Break
1:50 - 2:10 Using Artificial Intelligence (AI) and drone technology to effectively and efficiently perform HAB monitoring, proactive alert and remediation (Santiago Cabalquinto Jr, Grumpy Amoeba)
2:10 - 2:30 Peak Pumpkin Spice: When will it end?: The indefinite analysis continues (Andrew M. Deines, Exponent)
2:30 - 2:35 Break
2:35 - 2:55 Earth Engine for Earth Observation (Dan Constable, Delta Council)
2:55 - 3:30 An intro to making maps with sf (Rosemary Hartman, DWR)
2020-08-13
1:00 - 1:05 Introductions and welcome (Rosemary Hartman, DWR)
1:05 - 1:25 Longitudinal modeling of phragmites treatment efficacy (Michael Koohafkan, DWR)
1:25 - 1:45 Cloud computing with R (Sam Bashevkin, Delta Council)
1:45 - 1:55 Break
1:55 - 2:30 Factors and why they’re useful for plotting (Myfanwy Johnston, CFS)
2:30 - 3:00 Reading and writing HDF5 files with R (Travis Hinkelman, ESA)
2020-05-21
1:00 - 1:05 Introductions and welcome (Travis Hinkelman, CFS)
1:05 - 1:45 USGS Data Integration Project (Chuck Hansen, USGS)
1:45 - 2:05 Power analyses for community composition and spatial data (Daniel Ellis, CDFW)
2:05 - 2:10 Break
2:10 - 2:50 Introduction to Generalized Additive Models (GAMs) with R (Vanessa Tobias, FWS)
2:50 - 3:00 Break
3:00 - 3:30 ReprEx - How to write a reproducible example (and stop getting scolded when posting to Stack Overflow) (Rosemary Hartman, DWR)
3:30 - 4:00 Discussion of best practices in data science (e.g., Coding habits for data scientists)
2020-02-13
1:00 - 1:05 Introductions and welcome (Travis Hinkelman, CFS)
1:05 - 1:30 Determining sample sizes for a GLMM (Lauren Yamane, FWS)
1:30 - 1:55 Creating data packages in R (Emanuel Rodriguez, FlowWest)
1:55 - 2:00 Break
2:00 - 2:25 Tools for working with CDFW salvage database (Juniper Simonis, DAPPER Stats)
2:25 - 2:50 Introduction to Shiny (Sam Bashevkin, Delta Council)
2:50 - 3:00 Break
3:00 - 3:45 Introduction to dates and times in R (Rosemary Hartman, DWR)
2019-11-14
1:00 - 1:10 Introductions, update on PWT status, refresher on group scope (Rosemary Hartman, DWR)
1:10 - 1:20 IEP R Workshop planning (Lauren Damon and Jereme Gaeta, CDFW)
1:20 - 1:45 Using R for data QC at the USFWS (Morgan Gilbert, FWS)
1:45 - 2:30 Analyzing spatial patterns with FRAGSTATS (Dylan Chapple, Delta Council and Annika Keeley, UCB)
2:30 - 2:40 Break
2:40 - 3:00 Brainstorming session on tools to facilitate working with Delta data
3:00 - 3:20 Transforming data between wide and long formats (Rosemary Hartman, DWR)
3:20 - 4:00 Loops in R (Travis Hinkelman, CFS)
2019-08-08
1:30 - 2:00 Introductions and discussion of group scope (Rosemary Hartman, DWR)
2:00 - 2:30 Fun and sillyness with R (Vanessa Tobias, FWS)
2:30 - 3:00 Overdispersed, zero-inflated count data (Rosemary Hartman, DWR)
3:00 - 3:30 Intro to Python (John Franco Saraceno, DWR)
3:30 - 4:30 Intro to GitHub (Jason DuBois, CDFW)