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Created by
user-3cacb, last updated on Feb 27, 2008
2 minute read
First Look into the Data
Error Analysis
February 27, 2008
Another set of data has been evaluated. The alum dose for this particular experiment was 40mg/L and the clay dose turbidity was set at 125NTU.
Polynomial regression was evaluated on the raw data. The logarithmic regression was done for comparison purposes. However the equation for logarithmic regression was nonlinear.
Polynomial degree of 3 (n=3) was chosen in this particular set of data and the slope of the curve is plotted below.
Problems that should be looked at
- The initial turbidity is not the same as the clay dose turbidity (Experimental setup)
- Different type of slope plots for different degree
of polynomial (Plots not shown) - not consistent - Logarithmic regression is nonlinear