Create howManyLeafNodes.js

scripts/howManyLeafNodes.js

@@ -0,0 +1,38 @@
+const fs = require('fs');
+const path = require('path');
+const csv = require('csv-parser');
+
+// Step 1: Define the file path
+const filePathTaxonomy = path.join(__dirname, 'taxonomy_v1.csv');
+
+// Step 2: Read the .csv files and Step 3: Parse the CSV data
+let entriesTaxonomy = [];
+fs.createReadStream(filePathTaxonomy)
+  .pipe(csv())
+  .on('data', (row) => {
+    // Extract the row
+    entriesTaxonomy.push(row);
+  })
+  .on('end', () => {
+    // Read taxonomy data
+    console.log('entriesTaxonomy.length', entriesTaxonomy.length);
+    const overridenEntries = entriesTaxonomy.map((entry) => {
+      entry.parent_taxon_id = parseInt(entry.parent_taxon_id, 10);
+      entry.taxon_id = parseInt(entry.taxon_id, 10);
+      entry.rank_level = parseInt(entry.rank_level, 10);
+      entry.leaf_class_id = parseInt(entry.leaf_class_id, 10);
+      entry.iconic_class_id = parseInt(entry.iconic_class_id, 10);
+      entry.spatial_class_id = parseInt(entry.spatial_class_id, 10);
+      return entry;
+    });
+    entriesTaxonomy = overridenEntries;
+    // Count leaf nodes
+    const leafNodes = entriesTaxonomy.filter(
+      (entry) => !!entry.leaf_class_id
+    ).length;
+    console.log('leafNodes', leafNodes);
+    const species = entriesTaxonomy.filter(
+      (entry) => !!entry.leaf_class_id && entry.rank_level === 10
+    ).length;
+    console.log('species', species);
+  });