I would like to fit XY data with a 4-parameter sigmoid function of dose response model in Labview 7.1. The function I am trying to fit is:
y(x)=A2+(A1-A2)/(1+(x/x0)**p) A1:initial value A2:ultimate value p:power x0:value x when the value y is 50%
A typical data set would be:
X: 0, 0.625, 1.25, 2.5, 5, 20, 40, 80
Y: 394.902, 393.063, 393.5975, 352.159, 314.092, 209.516, 192.588, 190.589
Hope this help,Many thanks for any pointers.
sylvester
