Model Form #2
log10(ECB) =
1.44 + 0.05 TEMP
+ 0.89 log10(TURB)
where:
- ECB is computed e. coli, in most probable number
- TEMP is water temperature, in degrees Celsius
- TURB is turbidity, in formazin nephelometric units
Model Calibration
Basic Data
Number of measurements: | 171 |
---|---|
Mean squared error: | 0.2601 |
Multiple R2: | 0.6 |
Bias correction (smearing) factor: | 2.31 |
Explanatory Variables
Variable | Value | Standard error |
---|---|---|
Intercept | 1.44 | 0.13 | TEMP | 0.05 | 0.005 | log10(TURB) | 0.89 | 0.08 |
Correlation Matrix
Intercept | TEMP | log10(TURB) | |
---|---|---|---|
Intercept | 1 | -0.392 | -0.835 |
TEMP | -0.392 | 1 | 0.084 |
log10(TURB) | -0.835 | 0.084 | 1 |
Reference
- Baldwin, A.K., Robertson, D.M., Saad, D.A., and Magruder, Christopher, 2013, Refinement of regression models to estimate real-time concentrations of contaminants in the Menomonee River drainage basin, southeast Wisconsin, 2008–11: U.S. Geological Survey Scientific Investigations Report 2013-5174, 113 p., seven appendixes