Combining two csv's (d3)

Question

I am loading two csv files using the following code

    d3.csv(\"sqrt100train.csv\", function(error, data2) {
    d3.csv(\"sqrt100test.csv\", function(error, dat         


        

Answer 1

Problem: the length or the X value are different

serie1
X,  Y
1,  11
3,  13
5,  15
6,  16

serie2
X,  Y
1,  21
2,  22
4,  24
6,  26
7,  27

BothSeries
X,  Y1, Y2
1,  11, 21
2,    , 22
3,  13, 
4,    , 24
5,  15, 
6,  16, 26
7,    , 27

This code fix it.

var serie1 = [];
var serie2 = [];
var BothSeries = [[null,null,null]];


function merge() {
    BothSeries = [];
    var i, j, aux;
    //copy serie1 a BothSeries
    if(serie1.length!=0){
        for (var i = 0; i < serie1.length; i++) {
            //null represent the serie2 value
            BothSeries[i] = [serie1[i][0], serie1[i][1],null];
        }
    }
    //set the value Y of serie2 in the BothSeries when their X are equals.
    if(serie2.length!=0){
        for (var i = 0; i < serie2.length; i++) {
            for (var j = 0; j < BothSeries.length; j++) {
                if(BothSeries[j][0] == serie2[i][0]){
                    BothSeries[j][2] = serie2[i][1];
                }
            }
        }
    }
    //set the value X and Y of serie2 in the BothSeries when their X aren't equals or doesn't exist.
    var cont=0;
    if(serie2.length!=0){
        for (var i = 0; i < serie2.length; i++) {
            for (var j = 0; j < BothSeries.length; j++) {
                if(BothSeries[j][0] != serie2[i][0]){
                    cont++;
                }
            }
            if(cont==BothSeries.length)
            {
                BothSeries[BothSeries.length] = [serie2[i][0],null,serie2[i][1]];
            }
            cont=0;
        }
    }
    //order with bubble method by X
    if(BothSeries.length!=0){
        for(i=0;i