How to extract variable from table keeping the floating point?

Hello,

I am quite new to the table data type and I have a table of values of feautures extracted from an image, I need to convert it to a matrix before performing classification on it. I extract the data from the table like this:
observations=msr{1:height(msr),{'DNA_Area','DNA_Eccentricity','DNA_Perimeter','DNA_MeanIntensity','DNA_MaxIntensity','DNA_StandardDeviation','DNA_Mass','DNA_P2A'}} ;

The problem is that I rounds the values to the closest integer, and most of the variables are a value between [0,1] which means I need it to be in floating point format and not a rounded value. How can I overcome this problem?

Thanks in advance,