Remapping Values When Interfacing With MatLab

Does anyone know how I can remap incoming analog values from my Arduino Uno to MatLab?

I have a light sensor that I want to remap from (0 - 1023) to (0 - 100). The light sensor is being read within a while loop and plotted in real-time.

HI...
can you please tell how to send analog value to Arduino uno from matlab ?