find mean and standard deviation in vhdl

[Altera_Forum]

hi all 

i want a vhdl code to calculate the average from input data.  and another for standard deviation. thanks for advance .

[Altera_Forum]

What have you got so far? What problems do you have?

[Altera_Forum]

i have a top level design and i want to take the output from it and save on register or ram then calculate their mean and std dev.

[Altera_Forum]

sounds plausible - what exactly are you stuck with>?

[Altera_Forum]

i am stuck with floating point and how i can represent it in vhdl code ,i.e the result from division is floating Numbers how i can overcome it and then i can make avg.

[Altera_Forum]

If the inputs are two integers, the result from any arithmatic will be fixed point, not floating point. Fixed point is just an integer with a 2^n offset 

You havent specific anything about the system - how many samples to average? where the values come from, what the number sizes are? you havent even posted any code that even attempts to do the averaging yet.