How to fetch float data from arduino pro mini to MATLAB in real time?

Hello,

I have created some circuits with arduino pro mini (ATMEGA 328P) and it makes some calculations and create a 2*1 matrix . The data type of the elements of matrices are floats. I need to get these values and plot in a scatter plot in real time using MATLAB. But when i'm reading the arduino serial data from com port, it does not fetch the data correctly. It just show some garbage values.

Can anybody guide me through the correct process?

thank you.