Chromosome length and coding in Genetic Algoritms Toolbox

Hello, I solved opimisation task in GAToolbox using default setting and double vector option. Currently I would like to know How looks the length of the chromosomes in the population and coding in details, for example, for pop size= 20 In addition, I want to know in details how is coding when I chose: 1.Double vector ('doubleVector') - Use this option if the Individuals in the population have type double. Use this option for mixed integer programming. This is the default. 2.Bit string ('bitstring') - Use this option if the Individuals in the population have components That are 0 or 1.

On examples pls Best Regards Radek Winiczenko, WASRSAW UNIVERSITY OF LIFE SCIENCES< POLAND