pcaplot works better, synchronous request need to be fixed, but i still don't know why it's there

src/matrix/dataset.js

@@ -169,8 +169,7 @@ morpheus.Dataset.prototype = {
 		else {
 			var protoMessage = morpheus.DatasetUtil.toProtoMessage(this);
 
-			var blob = new Blob(new Uint8Array(protoMessage), {type: "application/octet-stream"});
-			saveAs(blob, "test.bin");
+
 			var req = ocpu.call("createES", protoMessage, function (session) {
 				console.log(session);
 				_this.esSession = session;

src/matrix/dataset_util.js

@@ -822,37 +822,36 @@ morpheus.DatasetUtil.getMetadataArray = function (dataset) {
 	var participantID = [];
 	var labelDescription = [];
 	var columnMeta = dataset.getColumnMetadata();
-	var n = columnMeta.getMetadataCount();
-	var m = dataset.columns;
-
-	for (var i = 0; i < n; i++) {
-		var vecI = columnMeta.get(i);
-		if (vecI.getName() == "participant_id") {
-			for (var j = 0; j < m; j++) {
-				participantID.push({
-					strval : vecI.getValue(j),
-					isNA : false
-				});
-			}
-		}
-		else {
-			for (j = 0; j < m; j++) {
-				pDataArray.push({
-					strval : vecI.getValue(j).toString(),
-					isNA : false
-				});
-			}
-			labelDescription.push({
-				strval : vecI.getName(),
+	var features = columnMeta.getMetadataCount();
+	var participants = dataset.getColumnCount();
+	var vecPartID = columnMeta.getByName("participant_id");
+	for (var i = 0; i < participants; i++) {
+		participantID.push({
+			strval : vecPartID.getValue(i),
+			isNA : false
+		});
+	}
+	for (var j = 0; j < features; j++) {
+		var vecJ = columnMeta.get(j);
+		if (vecJ.getName() == "participant_id") {
+			continue;
+		}
+		for (var l = 0; l < participants; l++) {
+			pDataArray.push({
+				strval : vecJ.getValue(l).toString(),
 				isNA : false
 			});
 		}
+		labelDescription.push({
+			strval : vecJ.getName(),
+			isNA : false
+		});
 	}
 
 	var rowMeta = dataset.getRowMetadata();
 	var rowNames = [];
 	var rowNamesVec = rowMeta.getByName("id");
-	for (j = 0; j < dataset.rows; j++) {
+	for (j = 0; j < dataset.getRowCount(); j++) {
 		rowNames.push({
 			strval : rowNamesVec.getValue(j),
 			isNA : false
@@ -863,6 +862,7 @@ morpheus.DatasetUtil.getMetadataArray = function (dataset) {
 morpheus.DatasetUtil.toProtoMessage = function (dataset) {
 	var array = morpheus.DatasetUtil.getContentArray(dataset);
 	var meta = morpheus.DatasetUtil.getMetadataArray(dataset);
+	console.log(meta);
 	var messageJSON = {
 		rclass : "LIST",
 		rexpValue : [{
@@ -879,7 +879,7 @@ morpheus.DatasetUtil.toProtoMessage = function (dataset) {
 			attrName : "dim",
 			attrValue : {
 				rclass : "INTEGER",
-				intValue : [dataset.getColumnMetadata().getMetadataCount() - 1, dataset.columns]
+				intValue : [dataset.getColumnCount(), dataset.getColumnMetadata().getMetadataCount() - 1]
 			}
 		}, {
 			rclass : "STRING",
@@ -918,5 +918,6 @@ morpheus.DatasetUtil.toProtoMessage = function (dataset) {
 		rexp = builder.build("rexp"),
 		REXP = rexp.REXP;
 
-	return new REXP(messageJSON);
+	var proto = new REXP(messageJSON);
+	return proto;
 };
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