Added frequency analysis

other/frequencies/trigraphs/index.js

@@ -0,0 +1,23 @@
+var data = require("fs").readFileSync("data.txt").toString();
+var frequencies = data
+.replace(/\r/g, "")
+.split("\n")
+.filter((a)=>(a))
+.map((line)=>(
+  line
+  .split("\t")
+  .filter((a)=>(a))
+))
+.map((sections)=>([sections[0], parseFloat(sections[1])]))
+.reduce((freqs, freq)=>{
+  freqs[freq[0]] = freq[1];
+  return freqs;
+}, {});
+
+var total = Object.values(frequencies).reduce((a, b)=>(a + b));
+var percentages = {};
+var trigraphs = Object.keys(frequencies).splice(0, 26);
+for(var trigraph of trigraphs){
+  percentages[trigraph] = frequencies[trigraph] / total * 100;
+}
+console.log(percentages);