Coefficients
| | | | |
---|
|
Estimate
|
Std. error
|
Z value
|
Pr(<|z|)
|
---|
Intercept
|
-5.2
|
0.69
|
-7.54
|
<0.001
|
Year 2012
|
-0.32
|
0.082
|
-3.92
|
<0.001
|
Temperature
|
0.23
|
0.058
|
3.98
|
<0.001
|
(Temperature)2
|
-0.0066
|
0.0020
|
-3.37
|
<0.001
|
Low elevation
|
4.8
|
0.68
|
7.01
|
<0.001
|
ns(date, df =2) 1
|
1.6
|
0.74
|
2.16
|
0.030
|
ns(date, df =2) 2
|
-3.0
|
0.52
|
-5.78
|
<0.001
|
Low elevation* ns(date, df = 2) 1
|
-5.0
|
0.83
|
-6.07
|
<0.001
|
Low elevation* ns(date, df = 2) 2
|
2.7
|
0.57
|
4.79
|
<0.001
|
- The term “*” means interaction, and “ns” is natural cubic spline; “df” specifies the degrees of freedom used in the spline. The baseline for the model is year 2011 and “high” elevation.