test: add example on 1e6 points

Author: lpatiny

examples/big/1e6.json

@@ -0,0 +1,28 @@
+
+// run file using  ts-node examples/big/bigTest.js
+
+
+import { readFileSync } from 'fs'
+import { join } from 'path'
+
+import { xMaxValue, xMinValue } from 'ml-spectra-processing'
+
+import { gsd } from '../../src/index.ts'
+
+console.time('loading')
+const data = JSON.parse(readFileSync(join(__dirname, '1e6.json'), 'utf8'))
+console.timeEnd('loading')
+console.log('Number peaks: ', data.x.length)
+console.time('gsd')
+const peaks = gsd(data, {
+  minMaxRatio: 0.00025, // Threshold to determine if a given peak should be considered as a noise
+  realTopDetection: true,
+  smoothY: false,
+  sgOptions: { windowSize: 7, polynomial: 3 },
+})
+console.timeEnd('gsd')
+
+console.log('Min Y:', xMinValue(peaks.map((peak) => peak.y)))
+console.log('Max Y:', xMaxValue(peaks.map((peak) => peak.y)))
+
+console.log('Nb peaks:', peaks.length);