TRIM 3.61 :  TRend analysis and Indices for Monitoring data 
 STATISTICS NETHERLANDS 

 Date/Time: 4-10-2016 11:57:42

 Title :   skylark-x1

 Comment: Variance-Covariance output test

 The following  5 variables have been read from file: 
 Z:\Users\patrick\Work\CBS\TRIM\wine\skylark.dat

 1. Site             number of values:    55
 2. Time             number of values:     8
 3. Count            missing =        999
 4. HABITAT          number of values:  2
 5. COV2             number of values:  4

 Number of sites without positive counts (removed)       0

 Number of observed zero counts           0
 Number of observed positive counts     202
 Total number of observed counts        202
 Number of missing counts               238
 Total number of counts                 440

 Total count                         2536.0

 Sites containing more than 10% of the total count 
   Site Number  Observed Total    %   
         3        431.0         17.0
        37        266.0         10.5
        40        624.0         24.6

 Time Point Averages 
   TimePoint  Observations  Average   Index  
       1              25       8.52    1.00
       2              20       8.10    0.95
       3              30      10.90    1.28
       4              30      11.27    1.32
       5              28      12.75    1.50
       6              29      14.66    1.72
       7              22      17.00    2.00
       8              18      18.89    2.22

 RESULTS FOR MODEL: Linear Trend
 --------------------------------
  Changes in Slope at Timepoints
      1     2 

 ESTIMATION METHOD = Generalised Estimating Equations


  Total time used:  1.02 seconds

  Estimated Overdispersion     =  1.334
  Estimated Serial Correlation =  0.305

 GOODNESS OF FIT
  Chi-square                193.36, df    145, p 0.0045
  Likelihood Ratio          191.81, df    145, p 0.0056
  AIC (up to a constant)    -98.19

 WALD-TEST FOR SIGNIFICANCE OF CHANGES IN SLOPE 
 Changepoint    Wald-Test  df   p  
      1            11.08    1  0.0009
      2            14.90    1  0.0001

 PARAMETER ESTIMATES 

 Slope for Time Intervals
 from upto   Additive  std.err.    Multiplicative   std.err.
    1    2   -0.3029    0.0910          0.7387       0.0672
    2    8    0.0757    0.0157          1.0787       0.0169

 Time INDICES
  Time     Model     std.err.     Imputed    std.err.
     1     1                       1
     2     0.7387     0.0672       0.7276     0.0686
     3     0.7968     0.0687       0.8295     0.0774
     4     0.8595     0.0723       0.8353     0.0794
     5     0.9272     0.0787       0.9193     0.0875
     6     1.0001     0.0885       1.0150     0.0977
     7     1.0788     0.1020       1.0945     0.1084
     8     1.1637     0.1195       1.1776     0.1230

 TIME TOTALS
  Time      Model    std.err.     Imputed    std.err.
     1        513         43          511         43
     2        379         23          372         25
     3        409         20          424         24
     4        441         18          427         24
     5        476         17          470         25
     6        513         19          519         27
     7        553         25          559         30
     8        597         34          602         36

 OVERALL SLOPE MODEL: Moderate increase (p<0.01) **
  Additive      std.err.   Multiplicative  std.err.
    0.0442       0.0134         1.0452      0.0140

 OVERALL SLOPE IMPUTED+(recommended): Moderate increase (p<0.01) **
  Additive      std.err.   Multiplicative  std.err.
    0.0463       0.0135         1.0474      0.0141