I have a set of data that contains 6 inputs and 1 output (about 500 rows). Basically, I'm trying to figure out the complex relationship between the 6 inputs (say different component of concrete mix, i.e. sand, aggregate, water etc.) in order to predict the strength of concrete (output).The data was collected through a number of experiments. I'm trying to figure out the relationship between them. For instance, if you reduce water volume, the strength decreases.
I was wondering if anyone can provide me with some tips or software (and/or tools) that can help me.