Commons Math example source code file (NumAcc1.txt)

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Java - Commons Math tags/keywords

certified, data, data, file, file, name, observations, response, sample, sample, simon, statistics, statistics, values

The Commons Math NumAcc1.txt source code

File Name:     NumAcc1.dat

File Format:   ASCII
               Header          : lines  1 to 60       (= 60)
               Certified Values: lines 41 to 43       (=  3)
               Data            : lines 61 to 63       (=  3)

Dataset Name:  NumAcc1

Description:   This is a constructed/fabricated data set
               to test accuracy in summary statistic calculations.
               The numbers are large (8-digit integers) and
               differ only in the last decimal place.
               Note--by construction, this data set has
                     sample mean                  = 10000002 (exact)
                     sample standard deviation    =        1 (exact)
                     sample autocorrelation coef. =     -0.5 (exact)

Stat Category: Univariate: Summary Statistics

Reference:     Simon, Stephen D. and Lesage, James P. (1989).
               Assessing the Accuracy of ANOVA Caluclations
               in Statistical Software", Computational
               Statistics & data Analysis, 8, pp. 325-332.

Data:          Constructed
               1    Response           : y
               0    Predictors
               3    Observations

Model:         Lower Level of Difficulty
               2    Parameters         : mu, sigma
               1    Response Variable  : y
               0    Predictor Variables

               y    = mu + e



                                                  Certified Values
Sample Mean                                ybar:  10000002 
Sample Standard Deviation (denom. = n-1)      s:         1 
Sample Autocorrelation Coefficient (lag 1) r(1):      -0.5 

Number of Observations:                                       3













Data: Y
---------
10000001
10000003
10000002