Exercise: Predicting Deforestation in Peru
In this exercise, you'll use the ff_run
function to predict deforestation in Peru. You'll create training data, validation data, train a model, make predictions, and analyze the results.
library(ForestForesight) # Step 1: Set up the parameters ff_folder <- "/path/to/your/forestforesight/data" country_code <- "PER" train_start <- "2023-06-01" train_end <- "2023-12-31" validation_start <- "2023-06-01" validation_end <- "2023-12-01" prediction_date <- "2024-01-01" # Step 2: Create date ranges for training and validation train_dates <- ForestForesight::daterange(train_start, train_end) validation_dates <- ForestForesight::daterange(validation_start, validation_end) # Step 3: Set up file paths for saving results model_save_path <- "/path/to/save/peru_deforestation_model.model" predictions_save_path <- "/path/to/save/peru_deforestation_prediction.tif" accuracy_csv_path <- "/path/to/save/peru_deforestation_accuracy.csv" importance_csv_path <- "/path/to/save/peru_feature_importance.csv" # Step 4: Run the ff_run function prediction_result <- ff_run( country = country_code, prediction_dates = prediction_date, ff_folder = ff_folder, train_dates = train_dates, validation_dates = validation_dates, save_path = model_save_path, save_path_predictions = predictions_save_path, accuracy_csv = accuracy_csv_path, importance_csv = importance_csv_path, verbose = TRUE, autoscale_sample = TRUE ) # Step 5: Plot the prediction result if (!is.na(prediction_result)) { plot(prediction_result, main = "Deforestation Prediction for Peru") } # Step 6: Print a summary of the results cat("Prediction completed. Results saved to disk:\n") cat("Model:", model_save_path, "\n") cat("Prediction raster:", predictions_save_path, "\n") cat("Accuracy CSV:", accuracy_csv_path, "\n") cat("Feature importance CSV:", importance_csv_path, "\n") # Optional: Load and print the first few lines of the accuracy CSV if (file.exists(accuracy_csv_path)) { accuracy_data <- read.csv(accuracy_csv_path) cat("\nFirst few lines of accuracy data:\n") print(head(accuracy_data)) }
This exercise does the following:
Sets up the necessary parameters, including date ranges for training and validation.
Specifies file paths for saving the model, predictions, accuracy metrics, and feature importance.
Calls the
ff_run
function with the specified parameters.Plots the prediction result if available.
Prints a summary of where the results are saved.
Optionally loads and displays the first few lines of the accuracy CSV file.
To complete this exercise:
Make sure you have the ForestForesight package and its dependencies installed.
Replace the
/path/to/your/forestforesight/data
with the actual path to your ForestForesight data folder.Adjust the file paths for saving results as needed.
Run the script and observe the output, including the plot and the saved files.
Review the contents of the saved CSV files to understand the accuracy metrics and feature importance.
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