Add files via upload

helper./gettweet.js

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+var twitter = require("twitter");
+
+var twitter = new twitter({
+  consumer_key: "mOUpwzhjCGYrPpqBL03n8cbtg",
+  consumer_secret: "CFEMDfwkiMnLAO7ofi0ConXlDAmwqUmaAKkx8XQRtfQnMWxI4N",
+  access_token_key: "261608471-ATGdO8ydPJ3l36vMKJgqTSecpoQZsHNIaBbXjJCJ",
+  access_token_secret: "Lwo2SrXGLHapLoXhp3LWiWELpnT1JhPcCEvEgsRmlrkKZ"
+});
+
+var methods = {};
+
+methods.twitter = twitter;
+
+methods.gettweet = function(callback) {
+  twitter.get("search/tweets", { q: "earthquake", count: 1 }, function(
+    error,
+    tweets,
+    response
+  ) {
+    console.log("Request made to twitter....");
+    if (error) {
+      console.log("Error occurred...." + error.errno);
+      return callback({ statusCode: 404, statusMessage: error.errno });
+    } else if (response.statusCode != 200) {
+      console.log("Error occured...." + response.statusMessage);
+      return callback({
+        statusCode: 404,
+        statusMessage: response.statusMessage + " Try again later...."
+      });
+    } else if (tweets.statuses.length === 0) {
+      console.log("No tweets returned....");
+      return callback({
+        statusCode: 404,
+        statusMessage: "No tweets returned try again later....."
+      });
+    } else {
+      console.log("Tweet returned successfully....");
+      //profile_image_url friends_count: 76
+      return callback({
+        statusCode: 200,
+        statusMessage: "Success",
+        user: tweets.statuses[0].user.name,
+        text: tweets.statuses[0].text,
+        created_at: tweets.statuses[0].created_at,
+        location: tweets.statuses[0].user.location,
+        profile_image: tweets.statuses[0].user.profile_image_url
+      });
+    }
+  });
+};
+
+module.exports = methods;

helper./learn.js

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+var bayes = require("bayes");
+var classifier = bayes();
+var fs = require('fs');
+var CsvReadableStream = require('csv-reader');
+var filename = "../FINALYEARPROJECT/public/datasets/file4.csv";
+var outputflename="../FINALYEARPROJECT/public/classification/classifier.json";
+var inputStream = fs.createReadStream(filename, 'utf8');
+
+inputStream
+    .pipe(CsvReadableStream({ parseNumbers: true, parseBooleans: true, trim: true }))
+    .on('data', function (row) {
+       classifier.learn(row[0],row[1]);
+    })
+    .on('end', function (data) {
+       var classifier_json=classifier.toJson();
+        fs.writeFile(outputflename, classifier_json, function(err, data){
+            if (err) console.log(err);
+            console.log('Program is ready for prediction.........')
+        });
+    });

helper./loaddataset.js

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+const createCsvWriter = require("csv-writer").createObjectCsvWriter;
+const twitter = require("./gettweet.js").twitter;
+const fs = require("fs");
+var paths = require("path");
+var path = paths.join(__dirname, "../public/datasets");
+
+var filename = "../FINALYEARPROJECT/public/datasets/file";
+
+var methods = {};
+
+methods.loaddataset = function() {
+  fs.readdir(path, function(err, items) {
+
+    filename += items.length + 1 + ".csv";
+    console.log("Dataset is loaded in file " + filename);
+    const csvWriter = createCsvWriter({
+      path: filename,
+      header: [{ id: "text", title: "TEXT" }]
+    });
+    twitter.stream("statuses/filter", { track: "earthquake" }, function(
+      stream
+    ) {
+      stream.on("data", function(tweet) {
+        let data = [{ text: tweet.text }];
+        csvWriter
+          .writeRecords(data) // returns a promise
+          .then(() => {
+            console.log("Tweet written on file");
+          });
+      });
+
+      stream.on("error", function(error) {
+        console.log("Error occured");
+      });
+    });
+  });
+};
+
+module.exports = methods;