Decimal values are not graphing as expected

Problem:
I am using data from a csv file. The data is: timestamp, value 1, value 2, value 3, value 4. The values are numbers between 1 and 4 with three decimal places but some of the values are being read as whole numbers (i.e. 1.234 is read as 1234) so the whole graph is off. How do I fix this?

Solution:
Add 'decimals-separator':'.', to the csv object to avoid confusions. Otherwise 3.666 will be seen as 3666 and 3.6 as 3600. Please use this demo for reference.