inst/doc/workflows-case-studies.R

In geospatialsuite: Comprehensive Geospatiotemporal Analysis and Multimodal Integration Toolkit

## ----setup, include = FALSE---------------------------------------------------
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  fig.width = 10,
  fig.height = 7,
  warning = FALSE,
  message = FALSE
)

## ----eval=FALSE---------------------------------------------------------------
# # Load required packages
# library(geospatialsuite)
# library(terra)
# library(sf)
# 
# # Verify package functionality
# test_geospatialsuite_package_simple(verbose = TRUE)

## ----eval=FALSE---------------------------------------------------------------
# # Create sample multi-temporal data
# red_raster <- rast(nrows = 80, ncols = 80,
#                   xmin = -83.5, xmax = -83.0,
#                   ymin = 40.2, ymax = 40.7)
# values(red_raster) <- runif(6400, 0.1, 0.3)
# 
# nir_raster <- rast(nrows = 80, ncols = 80,
#                   xmin = -83.5, xmax = -83.0,
#                   ymin = 40.2, ymax = 40.7)
# values(nir_raster) <- runif(6400, 0.4, 0.8)
# 
# # Configure comprehensive NDVI analysis
# ndvi_config <- list(
#   analysis_type = "ndvi_crop_analysis",
#   input_data = list(red = red_raster, nir = nir_raster),
#   region_boundary = c(-83.5, 40.2, -83.0, 40.7),  # Bounding box
#   indices = c("NDVI", "EVI2", "SAVI"),
#   quality_filter = TRUE,
#   temporal_smoothing = FALSE,
#   visualization_config = list(
#     create_maps = TRUE,
#     ndvi_classes = "none",
#     interactive = FALSE
#   )
# )
# 
# # Execute comprehensive workflow
# ndvi_workflow_results <- run_comprehensive_geospatial_workflow(ndvi_config)
# 
# # Access results
# ndvi_data <- ndvi_workflow_results$results$vegetation_data
# ndvi_stats <- ndvi_workflow_results$results$statistics
# ndvi_maps <- ndvi_workflow_results$results$visualizations

## ----eval=FALSE---------------------------------------------------------------
# # Simulate CDL crop data
# cdl_raster <- rast(nrows = 80, ncols = 80,
#                   xmin = -83.5, xmax = -83.0,
#                   ymin = 40.2, ymax = 40.7)
# values(cdl_raster) <- sample(c(1, 5, 24, 36, 61), 6400, replace = TRUE)  # Corn, soybeans, wheat, alfalfa, fallow
# 
# # Enhanced configuration with crop masking
# enhanced_ndvi_config <- list(
#   analysis_type = "ndvi_crop_analysis",
#   input_data = list(red = red_raster, nir = nir_raster),
#   region_boundary = "custom",
#   cdl_data = cdl_raster,
#   crop_codes = c(1, 5),  # Corn and soybeans only
#   indices = c("NDVI", "SAVI", "DVI"),
#   quality_filter = TRUE,
#   visualization_config = list(
#     create_maps = TRUE,
#     interactive = FALSE
#   )
# )
# 
# # Run enhanced workflow
# enhanced_results <- run_comprehensive_geospatial_workflow(enhanced_ndvi_config)
# 
# # Compare masked vs unmasked results
# print("Original NDVI stats:")
# print(global(ndvi_data, "mean", na.rm = TRUE))
# print("Crop-masked NDVI stats:")
# print(global(enhanced_results$results$vegetation_data, "mean", na.rm = TRUE))

## ----eval=FALSE---------------------------------------------------------------
# # Create multi-band spectral data
# spectral_stack <- c(
#   red_raster,                    # Band 1: Red
#   red_raster * 1.2,             # Band 2: Green (simulated)
#   red_raster * 0.8,             # Band 3: Blue (simulated)
#   nir_raster                     # Band 4: NIR
# )
# names(spectral_stack) <- c("red", "green", "blue", "nir")
# 
# # Configure comprehensive vegetation analysis
# vegetation_config <- list(
#   analysis_type = "vegetation_comprehensive",
#   input_data = spectral_stack,
#   indices = c("NDVI", "EVI2", "SAVI", "GNDVI", "DVI", "RVI"),
#   crop_type = "general",
#   analysis_type_detail = "comprehensive",
#   region_boundary = c(-83.5, 40.2, -83.0, 40.7),
#   visualization_config = list(
#     create_maps = TRUE,
#     comparison_plots = TRUE
#   )
# )
# 
# # Execute comprehensive vegetation workflow
# vegetation_results <- run_comprehensive_geospatial_workflow(vegetation_config)
# 
# # Access detailed results
# vegetation_indices <- vegetation_results$results$vegetation_analysis$vegetation_indices
# analysis_details <- vegetation_results$results$vegetation_analysis$analysis_results
# metadata <- vegetation_results$results$vegetation_analysis$metadata
# 
# print("Vegetation indices calculated:")
# print(names(vegetation_indices))
# print("Analysis metadata:")
# print(metadata$indices_used)

## ----eval=FALSE---------------------------------------------------------------
# # Corn-specific analysis workflow
# corn_config <- list(
#   analysis_type = "vegetation_comprehensive",
#   input_data = spectral_stack,
#   crop_type = "corn",
#   analysis_type_detail = "comprehensive",
#   cdl_mask = cdl_raster == 1,  # Corn mask
#   indices = c("NDVI", "EVI2", "GNDVI"),  # Corn-appropriate indices
#   visualization_config = list(create_maps = TRUE)
# )
# 
# corn_results <- run_comprehensive_geospatial_workflow(corn_config)
# 
# # Extract corn-specific insights
# if ("stress_analysis" %in% names(corn_results$results$vegetation_analysis$analysis_results)) {
#   stress_results <- corn_results$results$vegetation_analysis$analysis_results$stress_analysis
#   print("Corn stress analysis:")
#   print(stress_results)
# }

## ----eval=FALSE---------------------------------------------------------------
# # Create environmental monitoring scenario
# monitoring_extent <- c(-82.8, 39.5, -81.8, 40.5)
# 
# # Water quality monitoring stations
# water_stations <- data.frame(
#   station_id = paste0("WQ_", sprintf("%03d", 1:18)),
#   lon = runif(18, monitoring_extent[1] + 0.1, monitoring_extent[3] - 0.1),
#   lat = runif(18, monitoring_extent[2] + 0.1, monitoring_extent[4] - 0.1),
#   nitrate_mg_l = runif(18, 0.5, 15.0),
#   phosphorus_mg_l = runif(18, 0.02, 2.5),
#   turbidity_ntu = runif(18, 1, 45),
#   dissolved_oxygen_mg_l = runif(18, 4, 12),
#   ph = runif(18, 6.8, 8.4),
#   sampling_date = sample(seq(as.Date("2024-05-01"), as.Date("2024-09-30"), by = "day"), 18),
#   watershed = sample(c("Upper_Creek", "Lower_Creek", "Tributary_A"), 18, replace = TRUE)
# )
# 
# # Land use/land cover data
# lulc_raster <- terra::rast(nrows = 150, ncols = 150,
#                           xmin = monitoring_extent[1], xmax = monitoring_extent[3],
#                           ymin = monitoring_extent[2], ymax = monitoring_extent[4])
# 
# # Simulate realistic LULC pattern
# lulc_codes <- c(1, 5, 41, 42, 81, 82, 11, 21)  # Developed, Forest, Wetland, Agriculture
# lulc_probs <- c(0.15, 0.25, 0.05, 0.40, 0.08, 0.05, 0.01, 0.01)
# terra::values(lulc_raster) <- sample(lulc_codes, 22500, replace = TRUE, prob = lulc_probs)
# names(lulc_raster) <- "LULC"
# 
# print("Environmental monitoring setup completed")

## ----eval=FALSE---------------------------------------------------------------
# # Comprehensive water quality assessment
# water_quality_results <- list()
# 
# # Analyze each water quality parameter
# parameters <- c("nitrate_mg_l", "phosphorus_mg_l", "turbidity_ntu", "dissolved_oxygen_mg_l")
# 
# for (param in parameters) {
# 
#   # Define parameter-specific thresholds
#   thresholds <- switch(param,
#     "nitrate_mg_l" = list("Low" = c(0, 3), "Moderate" = c(3, 6),
#                          "High" = c(6, 10), "Excessive" = c(10, Inf)),
#     "phosphorus_mg_l" = list("Low" = c(0, 0.1), "Moderate" = c(0.1, 0.3),
#                             "High" = c(0.3, 0.8), "Excessive" = c(0.8, Inf)),
#     "turbidity_ntu" = list("Clear" = c(0, 5), "Moderate" = c(5, 15),
#                           "Turbid" = c(15, 30), "Very_Turbid" = c(30, Inf)),
#     "dissolved_oxygen_mg_l" = list("Critical" = c(0, 4), "Stressed" = c(4, 6),
#                                   "Good" = c(6, 8), "Excellent" = c(8, Inf))
#   )
# 
#   # Comprehensive analysis
#   water_quality_results[[param]] <- analyze_water_quality_comprehensive(
#     water_data = water_stations,
#     variable = param,
#     region_boundary = monitoring_extent,
#     thresholds = thresholds,
#     output_folder = paste0("water_quality_", param)
#   )
# }
# 
# print("Water quality analysis completed for all parameters")

## ----eval=FALSE---------------------------------------------------------------
# # Assess land use impacts on water quality
# land_use_impact_analysis <- function(water_stations, lulc_raster, buffer_sizes = c(500, 1000, 2000)) {
# 
#   results <- list()
# 
#   for (buffer_size in buffer_sizes) {
# 
#     # Extract land use composition around each station
#     buffered_lulc <- spatial_join_universal(
#       vector_data = water_stations,
#       raster_data = lulc_raster,
#       method = "buffer",
#       buffer_size = buffer_size,
#       summary_function = "mode",  # Most common land use
#       variable_names = paste0("dominant_lulc_", buffer_size, "m")
#     )
# 
#     # Calculate land use percentages
#     for (i in 1:nrow(water_stations)) {
#       station_point <- water_stations[i, ]
#       station_buffer <- sf::st_buffer(sf::st_as_sf(station_point,
#                                                   coords = c("lon", "lat"),
#                                                   crs = 4326),
#                                      dist = buffer_size)
# 
#       # Extract all LULC values within buffer
#       lulc_values <- terra::extract(lulc_raster, terra::vect(station_buffer))
#       lulc_table <- table(lulc_values)
# 
#       # Calculate percentages
#       total_pixels <- sum(lulc_table)
#       agriculture_pct <- sum(lulc_table[names(lulc_table) %in% c("1", "5")]) / total_pixels * 100
#       developed_pct <- sum(lulc_table[names(lulc_table) %in% c("21", "22", "23", "24")]) / total_pixels * 100
# 
#       water_stations[i, paste0("agriculture_pct_", buffer_size, "m")] <- agriculture_pct
#       water_stations[i, paste0("developed_pct_", buffer_size, "m")] <- developed_pct
#     }
# 
#     results[[paste0("buffer_", buffer_size, "m")]] <- water_stations
#   }
# 
#   return(results)
# }
# 
# # Perform land use impact analysis
# land_use_impacts <- land_use_impact_analysis(water_stations, lulc_raster)
# 
# # Analyze correlations between land use and water quality
# correlation_analysis <- function(data) {
# 
#   # Select relevant columns
#   water_quality_vars <- c("nitrate_mg_l", "phosphorus_mg_l", "turbidity_ntu")
#   land_use_vars <- grep("agriculture_pct|developed_pct", names(data), value = TRUE)
# 
#   correlation_matrix <- cor(data[, c(water_quality_vars, land_use_vars)],
#                            use = "complete.obs")
# 
#   return(correlation_matrix)
# }
# 
# # Analyze correlations for different buffer sizes
# correlations_500m <- correlation_analysis(land_use_impacts$buffer_500m)
# correlations_1000m <- correlation_analysis(land_use_impacts$buffer_1000m)
# correlations_2000m <- correlation_analysis(land_use_impacts$buffer_2000m)
# 
# print("Land use impact analysis completed")
# print("Correlations at 1000m buffer:")
# print(round(correlations_1000m[1:3, 4:7], 3))

## ----eval=FALSE---------------------------------------------------------------
# # Watershed-scale environmental assessment
# watershed_assessment <- function(water_stations, environmental_layers) {
# 
#   # Group stations by watershed
#   watershed_summary <- list()
# 
#   for (watershed in unique(water_stations$watershed)) {
# 
#     watershed_stations <- water_stations[water_stations$watershed == watershed, ]
# 
#     # Calculate watershed-level statistics
#     watershed_summary[[watershed]] <- list(
#       n_stations = nrow(watershed_stations),
#       mean_nitrate = mean(watershed_stations$nitrate_mg_l, na.rm = TRUE),
#       mean_phosphorus = mean(watershed_stations$phosphorus_mg_l, na.rm = TRUE),
#       mean_turbidity = mean(watershed_stations$turbidity_ntu, na.rm = TRUE),
#       stations_exceeding_nitrate_threshold = sum(watershed_stations$nitrate_mg_l > 6, na.rm = TRUE),
#       stations_exceeding_phosphorus_threshold = sum(watershed_stations$phosphorus_mg_l > 0.3, na.rm = TRUE)
#     )
#   }
# 
#   return(watershed_summary)
# }
# 
# # Environmental layers for watershed analysis
# environmental_layers <- list(
#   vegetation = enhanced_ndvi,  # From previous case study
#   elevation = elevation,
#   lulc = lulc_raster
# )
# 
# watershed_results <- watershed_assessment(water_stations, environmental_layers)
# 
# print("Watershed Assessment Results:")
# for (watershed in names(watershed_results)) {
#   cat("\n", watershed, ":\n")
#   result <- watershed_results[[watershed]]
#   cat("  Stations:", result$n_stations, "\n")
#   cat("  Mean Nitrate:", round(result$mean_nitrate, 2), "mg/L\n")
#   cat("  Mean Phosphorus:", round(result$mean_phosphorus, 3), "mg/L\n")
#   cat("  Stations exceeding nitrate threshold:", result$stations_exceeding_nitrate_threshold, "\n")
# }

## ----eval=FALSE---------------------------------------------------------------
# # Identify priority areas for conservation based on water quality risk
# conservation_priority_analysis <- function(lulc_raster, water_quality_data, slope_data = NULL) {
# 
#   # Create risk factors
#   risk_factors <- list()
# 
#   # Agricultural intensity risk
#   ag_risk <- lulc_raster
#   ag_risk[lulc_raster != 1 & lulc_raster != 5] <- 0  # Non-ag areas = 0 risk
#   ag_risk[lulc_raster == 1 | lulc_raster == 5] <- 1  # Ag areas = 1 risk
#   names(ag_risk) <- "agricultural_risk"
# 
#   # Water quality risk based on monitoring data
#   # Create risk surface using interpolation of water quality data
#   high_risk_stations <- water_quality_data[water_quality_data$nitrate_mg_l > 6 |
#                                           water_quality_data$phosphorus_mg_l > 0.3, ]
# 
#   if (nrow(high_risk_stations) > 0) {
#     # Simple distance-based risk (closer to high-risk stations = higher risk)
#     risk_raster <- terra::rast(lulc_raster)
#     terra::values(risk_raster) <- 0
# 
#     for (i in 1:nrow(high_risk_stations)) {
#       station_point <- c(high_risk_stations$lon[i], high_risk_stations$lat[i])
#       # Create simple distance decay function (this is simplified)
#       distances <- terra::distance(risk_raster, station_point)
#       station_risk <- 1 / (1 + distances / 5000)  # 5km decay distance
#       risk_raster <- risk_raster + station_risk
#     }
# 
#     names(risk_raster) <- "water_quality_risk"
#   } else {
#     risk_raster <- ag_risk * 0  # No high-risk stations
#   }
# 
#   # Combined priority score
#   combined_priority <- (ag_risk * 0.6) + (risk_raster * 0.4)
#   names(combined_priority) <- "conservation_priority"
# 
#   # Classify priority levels
#   priority_values <- terra::values(combined_priority, mat = FALSE)
#   priority_breaks <- quantile(priority_values[priority_values > 0],
#                              c(0, 0.25, 0.5, 0.75, 1.0), na.rm = TRUE)
# 
#   priority_classified <- terra::classify(combined_priority,
#                                         cbind(priority_breaks[-length(priority_breaks)],
#                                               priority_breaks[-1],
#                                               1:4))
#   names(priority_classified) <- "priority_class"
# 
#   return(list(
#     priority_surface = combined_priority,
#     priority_classified = priority_classified,
#     high_risk_stations = high_risk_stations
#   ))
# }
# 
# # Generate conservation priorities
# conservation_priorities <- conservation_priority_analysis(lulc_raster, water_stations)
# 
# print("Conservation priority analysis completed")
# print(paste("High-risk stations identified:", nrow(conservation_priorities$high_risk_stations)))

## ----eval=FALSE---------------------------------------------------------------
# # Simulate multi-temporal satellite data (5-year time series)
# years <- 2020:2024
# temporal_extent <- c(-83.0, 40.2, -82.0, 41.2)
# 
# # Create temporal NDVI series with realistic trends
# temporal_ndvi_series <- list()
# base_ndvi <- terra::rast(nrows = 120, ncols = 120,
#                         xmin = temporal_extent[1], xmax = temporal_extent[3],
#                         ymin = temporal_extent[2], ymax = temporal_extent[4])
# 
# # Create base NDVI pattern
# x_coords <- terra::xFromCell(base_ndvi, 1:terra::ncell(base_ndvi))
# y_coords <- terra::yFromCell(base_ndvi, 1:terra::ncell(base_ndvi))
# base_pattern <- 0.6 + 0.2 * sin((x_coords - min(x_coords)) * 6) +
#                 0.1 * cos((y_coords - min(y_coords)) * 4) +
#                 rnorm(terra::ncell(base_ndvi), 0, 0.1)
# terra::values(base_ndvi) <- pmax(0.1, pmin(0.9, base_pattern))
# 
# # Simulate temporal changes
# for (i in 1:length(years)) {
#   year <- years[i]
# 
#   # Add temporal trends
#   # 1. General vegetation improvement (climate change effect)
#   climate_trend <- (i - 1) * 0.02
# 
#   # 2. Localized disturbances (development, deforestation)
#   disturbance_effect <- 0
#   if (i >= 3) {  # Disturbance starts in year 3
#     # Simulate development in lower-left quadrant
#     disturbance_mask <- (x_coords < (min(x_coords) + (max(x_coords) - min(x_coords)) * 0.4)) &
#                        (y_coords < (min(y_coords) + (max(y_coords) - min(y_coords)) * 0.4))
#     disturbance_effect <- ifelse(disturbance_mask, -0.3, 0)
#   }
# 
#   # 3. Inter-annual variability
#   annual_variation <- rnorm(terra::ncell(base_ndvi), 0, 0.05)
# 
#   # Combine effects
#   year_ndvi <- base_ndvi + climate_trend + disturbance_effect + annual_variation
#   year_ndvi <- pmax(0.05, pmin(0.95, year_ndvi))
#   names(year_ndvi) <- paste0("NDVI_", year)
# 
#   temporal_ndvi_series[[as.character(year)]] <- year_ndvi
# }
# 
# print("Multi-temporal data series created for years:", paste(years, collapse = ", "))

## ----eval=FALSE---------------------------------------------------------------
# # Comprehensive temporal change analysis
# temporal_analysis_results <- analyze_temporal_changes(
#   data_list = temporal_ndvi_series,
#   dates = as.character(years),
#   region_boundary = temporal_extent,
#   analysis_type = "trend",
#   output_folder = "temporal_analysis_results"
# )
# 
# # Additional change detection analysis
# change_detection_results <- analyze_temporal_changes(
#   data_list = temporal_ndvi_series,
#   dates = as.character(years),
#   analysis_type = "change_detection"
# )
# 
# # Statistical analysis
# statistics_results <- analyze_temporal_changes(
#   data_list = temporal_ndvi_series,
#   dates = as.character(years),
#   analysis_type = "statistics"
# )
# 
# print("Temporal analysis completed:")
# print("Trend analysis:", !is.null(temporal_analysis_results$trend_rasters))
# print("Change detection:", length(change_detection_results$change_rasters), "change maps")
# print("Statistical summary:", length(statistics_results$statistics_rasters), "statistic layers")

## ----eval=FALSE---------------------------------------------------------------
# # Identify areas of significant change
# identify_change_hotspots <- function(trend_results, change_results, threshold_slope = 0.02) {
# 
#   # Extract slope (trend) raster
#   slope_raster <- trend_results$trend_rasters$slope
#   r_squared_raster <- trend_results$trend_rasters$r_squared
# 
#   # Identify significant trends
#   significant_trends <- abs(slope_raster) > threshold_slope & r_squared_raster > 0.5
# 
#   # Classify change types
#   change_types <- slope_raster
#   change_types[slope_raster > threshold_slope & significant_trends] <- 2   # Increasing
#   change_types[slope_raster < -threshold_slope & significant_trends] <- 1  # Decreasing
#   change_types[!significant_trends] <- 0  # No significant change
# 
#   names(change_types) <- "change_type"
# 
#   # Calculate change statistics
#   n_total <- terra::ncell(change_types)
#   n_increasing <- sum(terra::values(change_types) == 2, na.rm = TRUE)
#   n_decreasing <- sum(terra::values(change_types) == 1, na.rm = TRUE)
#   n_stable <- sum(terra::values(change_types) == 0, na.rm = TRUE)
# 
#   change_stats <- list(
#     total_pixels = n_total,
#     increasing_pixels = n_increasing,
#     decreasing_pixels = n_decreasing,
#     stable_pixels = n_stable,
#     increasing_percent = round(n_increasing / n_total * 100, 1),
#     decreasing_percent = round(n_decreasing / n_total * 100, 1)
#   )
# 
#   return(list(
#     change_types = change_types,
#     significant_trends = significant_trends,
#     change_statistics = change_stats
#   ))
# }
# 
# # Identify hotspots
# change_hotspots <- identify_change_hotspots(temporal_analysis_results, change_detection_results)
# 
# print("Change Hotspot Analysis:")
# print(paste("Pixels with increasing vegetation:", change_hotspots$change_statistics$increasing_pixels))
# print(paste("Pixels with decreasing vegetation:", change_hotspots$change_statistics$decreasing_pixels))
# print(paste("Percentage of area with significant decline:",
#            change_hotspots$change_statistics$decreasing_percent, "%"))

## ----eval=FALSE---------------------------------------------------------------
# # Synthesize results from all case studies
# comprehensive_synthesis <- function(agricultural_results, environmental_results, temporal_results) {
# 
#   synthesis_report <- list()
# 
#   # 1. Agricultural insights
#   synthesis_report$agricultural_summary <- list(
#     total_fields_analyzed = nrow(field_boundaries),
#     management_zones_created = management_zones$optimal_zones,
#     average_ndvi = round(mean(terra::values(enhanced_ndvi), na.rm = TRUE), 3),
#     precision_ag_benefits = "Variable-rate applications recommended for all zones"
#   )
# 
#   # 2. Environmental insights
#   synthesis_report$environmental_summary <- list(
#     water_stations_monitored = nrow(water_stations),
#     parameters_analyzed = length(parameters),
#     watersheds_assessed = length(unique(water_stations$watershed)),
#     high_risk_areas_identified = nrow(conservation_priorities$high_risk_stations)
#   )
# 
#   # 3. Temporal insights
#   synthesis_report$temporal_summary <- list(
#     years_analyzed = length(years),
#     significant_change_areas = change_hotspots$change_statistics$decreasing_percent,
#     trend_analysis_completed = TRUE,
#     monitoring_recommendations = "Continue monitoring areas with significant decline"
#   )
# 
#   # 4. Integrated recommendations
#   synthesis_report$integrated_recommendations <- list(
#     precision_agriculture = "Implement zone-based management for optimal yields",
#     water_quality = "Focus conservation efforts on high-risk watersheds",
#     land_change_monitoring = "Establish permanent monitoring plots in change hotspots",
#     data_integration = "Continue multi-source data integration for comprehensive assessment"
#   )
# 
#   return(synthesis_report)
# }
# 
# # Generate comprehensive synthesis
# final_synthesis <- comprehensive_synthesis(
#   agricultural_results,
#   water_quality_results,
#   temporal_analysis_results
# )
# 
# print("COMPREHENSIVE ANALYSIS SYNTHESIS")
# print("=====================================")
# for (section in names(final_synthesis)) {
#   cat("\n", toupper(gsub("_", " ", section)), ":\n")
#   for (item in names(final_synthesis[[section]])) {
#     cat("  ", gsub("_", " ", item), ":", final_synthesis[[section]][[item]], "\n")
#   }
# }

## ----eval=FALSE---------------------------------------------------------------
# # Performance optimization for large-scale analyses
# optimization_tips <- function() {
#   cat("WORKFLOW OPTIMIZATION GUIDE\n")
#   cat("===========================\n\n")
# 
#   cat("Data Management:\n")
#   cat("  - Process data in chunks for large datasets\n")
#   cat("  - Use appropriate raster resolutions for analysis scale\n")
#   cat("  - Implement data caching for repeated analyses\n")
#   cat("  - Clean up intermediate files regularly\n\n")
# 
#   cat("Memory Management:\n")
#   cat("  - Monitor memory usage with gc() and object.size()\n")
#   cat("  - Use terra's out-of-memory processing for large rasters\n")
#   cat("  - Remove unused objects with rm()\n")
#   cat("  - Consider parallel processing for independent operations\n\n")
# 
#   cat("Quality Control:\n")
#   cat("  - Validate inputs before processing\n")
#   cat("  - Implement checkpoints in long workflows\n")
#   cat("  - Log processing steps and parameters\n")
#   cat("  - Create reproducible analysis scripts\n")
# }
# 
# optimization_tips()

## ----eval=FALSE---------------------------------------------------------------
# # Framework for reproducible geospatial research
# create_reproducible_workflow <- function(project_name, analysis_config) {
# 
#   # Create project structure
#   project_dirs <- c(
#     file.path(project_name, "data", "raw"),
#     file.path(project_name, "data", "processed"),
#     file.path(project_name, "scripts"),
#     file.path(project_name, "results", "figures"),
#     file.path(project_name, "results", "tables"),
#     file.path(project_name, "documentation")
#   )
# 
#   for (dir in project_dirs) {
#     if (!dir.exists(dir)) dir.create(dir, recursive = TRUE)
#   }
# 
#   # Create analysis log
#   analysis_log <- list(
#     project_name = project_name,
#     creation_date = Sys.time(),
#     geospatialsuite_version = "0.1.0",
#     analysis_config = analysis_config,
#     r_session_info = sessionInfo()
#   )
# 
#   # Save analysis configuration
#   saveRDS(analysis_log, file.path(project_name, "analysis_log.rds"))
# 
#   cat("Reproducible workflow structure created for:", project_name, "\n")
#   cat("Project directories:", length(project_dirs), "created\n")
#   cat("Analysis log saved\n")
# 
#   return(project_dirs)
# }
# 
# # Example usage
# workflow_config <- list(
#   analysis_types = c("agricultural", "environmental", "temporal"),
#   study_region = "Ohio Agricultural Region",
#   temporal_extent = "2020-2024",
#   spatial_resolution = "30m",
#   coordinate_system = "WGS84"
# )
# 
# project_structure <- create_reproducible_workflow("integrated_geospatial_analysis", workflow_config)