syhu/scalra-WPA: make output to files optional

modules/WPA.js

@@ -42,13 +42,15 @@ var getBridgingEdge = function (edges, authors) {
 /*
 example input:
 	var input = {
-		names:		args.names,
-		file_paths: file_paths,
-		authors:	authors,
-		words: 		args.word_size,
-		R_CUT: 		R_CUT,
-		stat_scope: stat_scope,
-		set_type: 	set_type
+		names:		'string',				// array of data labels (ex. filenames)
+		data: 		[string],				// array of raw data (with puntuation marks)
+		authors:	[string],				// array of author names
+		words: 		'number',				// ex. 2
+		R_CUT: 		'number',				// ex. 70
+		stat_scope: 'string',				// ['r_cut', 'full']
+		set_type: 	'string',				// ['union', 'intersection']
+		write_freq_table:	'boolean',		// whether to output frequency table to file
+		write_raw:	'boolean'				// whether to output raw data to file
 	};
 */
 exports.analyze = function (input, onDone) {

modules/word_frequency.js

@@ -98,22 +98,28 @@ word_frequency.prototype.parse = function (input, onDone) {
 
 	// store raw & frequency to files
 	var filename = input.names[input.index];
+	// NOTE: currently the same exact file will be written multiple times,
+	// if 'unique_words' are different due to different word-length selection
+	// do not write files depend on settings
+	if (input.write_raw === true) {
+		fs.writeFile(
+			"./output/A_raw_data_"
+				+ string_without_marks.length
+				+ "_"
+				+ unique_words
+				+ "_"
+				+ filename,
+			string_without_marks
+		);		
+	}
 
-	fs.writeFile(
-		"./output/A_raw_data_"
-			+ string_without_marks.length
-			+ "_"
-			+ unique_words
-			+ "_"
-			+ filename,
-		string_without_marks
-	);
-
-	fs.writeFile(
-		"./output/B_freq_table_"
-			+ filename,
-		util.inspect(sorted_words)
-	);
+	if (input.write_freq_table === true) {
+		fs.writeFile(
+			"./output/B_freq_table_"
+				+ filename,
+			util.inspect(sorted_words)
+		);		
+	}
 
 	return onDone(null, {freq_table: sorted_words, filename: filename});
 }