PGA Simulation Sunday Update

This weeks goal for me was to work on a PGA simulation labview program. The hope in doing this was to lead to possible solutions in actual implementation for use of the PGA. These solutions could then be incorporated into the overall program. The PGA simulation did not progress as much as I would like, although it is a work in progress. Below I have listed questions of my struggles that I have posed to my team members...

1) As for the randomness of the amplitude of the signal, I have a bit of code in there that provides randomness, although is not hooked up to the sine wave just yet.
a) My first question about it, is that it is giving me integers, and I am not all that great with the types, so I am wondering if there is a way to make it do decimal values rather than U32 values.
b)My second question is that when I attach it to the amplitude, I need a way to have it pick a random number only once rather than constantly changing the amplitude. I am not sure how to do this. I am thinking of using a loop to only make it grab one of the random values, but still am uncertain of how.

2) The sine wave seems to be a nice wave right now. It was a bit tricky for me to get the max and min working, although, it does give me max and min values of y and x separately, which is neat, (i.e. ymin and ymax and xmin and xmax). This is really useful.
a) I have used this to my advantage of taking the ymax and using logic to see if it falls within a range of values (right now I have it set in a range of 4.75 to 5 V, which will likely need to be changed later so there is less error.) With this being said, when it is true, it goes to a true/false case where true does nothing and false has logic further asking if the value was less than 4.75 V, and I would like this to multiply by a particular number to act as the PGA does, so in the first case, multiply by 2. I have the ymax go into this case, but I don't know quite how implement this with having an array of values coming in.
b) The array of values need to be paired back up with the time values. Not certain of how to do this.
c) Of course, with each trial check through the PGA, the gain (or number multiplied by will need to change). Again, I think that this is some sort of loop where i increments (maybe for loop), but I need help on figuring the increment portion.

3) I have not looked at the implementation of adding a DC value for smaller adjustments just yet. Also, it can be noted that for now, the signal is starting out at 2.5 V as it would be assuming that the DC finder was working at this stage.

During lab, I will meet with my team and see what advice they have. Hopefully by the end of lab, there will be a running PGA simulation that fully works.