Date - time                : 10/09/2005 07:01:56

Data file name           : rats253.dta

 

Single Cosinor Tests for one chosen period  

Studied period (T)          : 2.5300000E+01

 

1. Results by each series

Equation of the model : β  cos(2π t/T) + γ  sin(2π t/T) + α

 

Serie n°1

Solution model : 1.18E+01Cos(2π t/25.30)-2.58E+00Sin(2π t/25.30)+1.41E+01

Initial model      : 1.21E+01Cos((2π t/25.30)-6.07E+00)+1.41E+01

-  Model (ANOVA) is valid at the probability level   p =0.9500, α =0.0500

 

1.1. Chronobiometric values :

- Amplitude                                                                       : 1.21E+01

  Amplitude Standard Error                                                  : 2.18E+00

  CI of Amplitude                                                                  : [7.47E+00 ; 1.67E+01]

- Dephasing -  Chronobiometric Acrophase (Radians)   : -6.07E+00

  Dephasing Standard Error                                                : 1.67E-01

  CI of Dephasing                                                                : [-6.42E+00 ; -5.71E+00]

- Dephasing -  Chronobiometric Acrophase (Degrees)  : -3.48E+02

  Dephasing Standard Error                                                : 9.58E+00

  CI of Dephasing                                                                : [-3.68E+02 ; -3.27E+02]

- Shifting  -  Chronobiometric MESOR                                : 1.41E+01

  Shifting Standard Error                                                      : 1.48E+00

  CI of Shifting                                                                      : [1.10E+01 ; 1.72E+01]

- AESOR[0, T] -  Chronobiometric AESOR                         : 3.57E+02

  AESOR Standard Error                                                     : 3.76E+01

  CI of AESOR                                                                     : [2.79E+02 ; 4.35E+02]

 

1.2. Chronobiometric parameters :

- Percent Rhythm                                                           : 59.97 %

- Percent Error                                                                : 40.03 %

- p-Value (H0: Amplitude=0)                                          : 0.0001

 

1.3. Chronobiometric test : p =0.9500, α =0.0500

-  Ellipse Test (H0: β=0 And γ=0) for T =  2.5300000E+01 H0 rejected            

-  Area of the Confidence Ellipse  : 9.61E+01

 

1.4. Residuals distribution - Goodness of fit : p =0.9500, α =0.0500

- Ajusted r²                     : 8.18E-01

- K-S Test (H0: Normal residuals distribution) H0 accepted                

- χ² Test (H0: Normal residuals distribution) H0 rejected                                

- Average Test (H0: RS Average = 0) H0 accepted                                 

- Q Test (H0: Independent Residues) H0 accepted                               

 

Serie n°2

Solution model : 1.56E+01Cos(2π t/25.30)-7.88E+00Sin(2π t/25.30)+2.06E+01

Initial model      : 1.75E+01Cos((2π t/25.30)-5.82E+00)+2.06E+01

-  Model (ANOVA) is valid at the probability level   p =0.9500, α =0.0500

 

1.1. Chronobiometric values :

- Amplitude                                                                       : 1.75E+01

  Amplitude Standard Error                                                  : 2.47E+00

  CI of Amplitude                                                                  : [1.19E+01 ; 2.31E+01]

- Dephasing -  Chronobiometric Acrophase (Radians)   : -5.82E+00

  Dephasing Standard Error                                                : 1.53E-01

  CI of Dephasing                                                                : [-6.12E+00 ; -5.52E+00]

- Dephasing -  Chronobiometric Acrophase (Degrees)  : -3.33E+02

  Dephasing Standard Error                                                : 8.75E+00

  CI of Dephasing                                                                : [-3.50E+02 ; -3.16E+02]

- Shifting  -  Chronobiometric MESOR                                : 2.06E+01

  Shifting Standard Error                                                      : 1.82E+00

  CI of Shifting                                                                      : [1.68E+01 ; 2.44E+01]

- AESOR[0, T] -  Chronobiometric AESOR                         : 5.21E+02

  AESOR Standard Error                                                     : 4.61E+01

  CI of AESOR                                                                     : [4.25E+02 ; 6.17E+02]

 

1.2. Chronobiometric parameters :

- Percent Rhythm                                                           : 68.00 %

- Percent Error                                                                : 32.00 %

- p-Value (H0: Amplitude=0)                                          : 0.0000

 

1.3. Chronobiometric test : p =0.9500, α =0.0500

-  Ellipse Test (H0: β=0 And γ=0) for T =  2.5300000E+01 H0 rejected            

-  Area of the Confidence Ellipse  : 1.45E+02

 

1.4. Residuals distribution - Goodness of fit : p =0.9500, α =0.0500

- Ajusted r²                     : 8.66E-01

- K-S Test (H0: Normal residuals distribution) H0 accepted                

- χ² Test (H0: Normal residuals distribution) H0 rejected                                

- Average Test (H0: RS Average = 0) H0 accepted                                 

- Q Test (H0: Independent Residues) H0 accepted                               

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2. Results for all data

Solution model : 1.39E+01Cos(2π t/25.30)-4.22E+00Sin(2π t/25.30)+1.59E+01

Initial model      : 1.45E+01Cos((2π t/25.30)-5.99E+00)+1.59E+01

-  Model (ANOVA) is valid at the probability level      p =0.9500, α =0.0500

 

2.1. Chronobiometric values :

- Amplitude                                                                       : 1.45E+01

  Amplitude Standard Error                                                  : 1.37E+00

  CI of Amplitude                                                                  : [1.17E+01 ; 1.73E+01]

- Dephasing -  Chronobiometric Acrophase (Radians)    : -5.99E+00

  Dephasing Standard Error                                               : 9.75E-02

  CI of Dephasing                                                                : [-6.18E+00 ; -5.80E+00]

- Dephasing -  Chronobiometric Acrophase (Degrees)   : -3.43E+02

  Dephasing Standard Error                                                : 5.59E+00

  CI of Dephasing                                                                : [-3.54E+02 ; -3.32E+02]

- Shifting      -  Chronobiometric MESOR                           : 1.59E+01

  Shifting Standard Error                                                     : 9.87E-01

  CI of Shifting                                                                      : [1.40E+01 ; 1.79E+01]

- AESOR[0, T] -  Chronobiometric AESOR                         : 4.03E+02

  AESOR Standard Error                                                     : 2.50E+01

  CI of AESOR                                                                     : [3.53E+02 ; 4.53E+02]

 

2.2. Chronobiometric parameters :

- Percent Rhythm                                                           : 61.22 %

- Percent Error                                                                : 38.78 %

- p-Value for H0 (Amplitude=0)                                    : 0.0000

 

2.3. Chronobiometric test : p =0.9500, α =0.0500

-  Ellipse Test (H0: β=0 And γ=0) for T =  2.5300000E+01 H0 rejected              

-  Area of the Confidence Ellipse  : 3.81E+01

 

2.4. Residuals distribution - Goodness of fit : p =0.9500, α =0.0500

- Ajusted r²                                                                       : 8.27E-01

- Residual Sums of Squares                                         : 4.36E+03

- χ² Test (H0: Normal residuals distribution) H0 rejected                    :

- K-S Test (H0: Normal residuals distribution) H0 rejected                    

- Average Test (H0: RS Average = 0) H0 accepted                        

- Q Test (H0: Independent Residues) H0 accepted                      

 

- K-S Test is the Kolmogorov and Smirnov test  

- Average Test (H0: RS Average = 0) is a test of average on the average sum of residues  

- Q Test is the Ljung-Box Q-statistic lack-of-fit hypothesis test