Typeerror: Cannot Read Property '1' Of Undefined D3.js

I wanted to change this example and use my own data and just changed the file name in the function chart('ohne_postionanträge_monatlich_erst2015.csv', 'orange'); this is my csv

Solution 1:

The stack method expects your data to be equally length-ed. Each key must have the same dates. For instance, if we only look at your first 3 keys (countries) and fixed the data to this:

key,value,date
Afghanistan,1129,01/01/15
Afghanistan,969,02/01/15
Afghanistan,885,03/01/15
Afghanistan,1119,04/01/15
Afghanistan,1151,05/01/15
Afghanistan,2051,06/01/15
Afghanistan,2104,07/01/15
Afghanistan,2270,08/01/15
Afghanistan,2724,09/01/15
Afghanistan,3770,10/01/15
Albanien,1598,01/01/15
Albanien,1735,02/01/15
Albanien,2955,03/01/15
Albanien,4743,04/01/15
Albanien,4864,05/01/15
Albanien,5837,06/01/15
Albanien,7547,07/01/15
Albanien,8234,08/01/15
Albanien,6624,09/01/15
Albanien,4549,10/01/15
Bosnien und Herzegowina,0,01/01/15 //<-- this was missing
Bosnien und Herzegowina,370,02/01/15
Bosnien und Herzegowina,380,03/01/15
Bosnien und Herzegowina,472,04/01/15
Bosnien und Herzegowina,382,05/01/15
Bosnien und Herzegowina,0,06/01/15 //<-- this was missing
Bosnien und Herzegowina,0,07/01/15 //<-- this was missing
Bosnien und Herzegowina,0,08/01/15 //<-- this was missing
Bosnien und Herzegowina,0,09/01/15 //<-- this was missing
Bosnien und Herzegowina,0,10/01/15 //<-- this was missing

Then the graph draws as expected.