Parameters
Nonlinear models have undetermined parameters, for example, the following model
y=a*exp(b*x+c)+d has four parameters - a, b, c and d. To determine the model, must get the values of the four parameters.
The maximum number of parameters Visual Stats allowed is 20. Please note that the names of parameters in Visual Stats must be one of the letters 'a' to 't' and must be priority selected alphabetically.
For example, if your model has two parameters, the names of the two parameters must be 'a' and 'b'; if the model has four parameters, the names must be 'a', 'b', 'c' and 'd'.
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