14. Genetic calculation applets and other programs

By Knud Christensen - Lecture notes, front page (in Danish), Lecture notes, front page (in English)
Voice slide show demonstrating the applets (real player should be installed) or Slide show or manual access to the demonstration of the applets
A java interpreter should be enabled in your browser to run the applets ! !
By using the applets a general feature is that you can place your input in the green fields. The yellow fields can also be used for input, often in the next round of calculations.
Be careful not to leave any blanks (not visible) in these fields, so if the applet will not run, test if the cursor stands right next to the number in all green or yellow fields you have touched. 

Applets

2.2 Chi-square test for Hardy-Weinberg equilibrium

2.4 Calculation of mating type frequencies in a H-W population

2.5 Chi-square test for 2 by 2 or 3 by 3 table (eg linkage disequilibrium)

2.5 Linkage, 3-point analyses from test cross

2.5 Many programs for statistical tests, collected by Lowry, USA

2.51 Linkage: Calculation of gamete and genotype frequencies

3.4 Selection: Change in gene- and genotype frequencies

3.5 Change in gene- and genotype frequencies: Effect of population size

4.5 Calculation of relationship and inbreeding coefficients by the tabular method

5.6 Calculation of Chi-square test for deviation from Mendelian ratios

5.7 Calculation of corrected segregation ratio according to Singles method

6.2 Calculation of mean, Genetic and Additive values and Dominance deviations

7.2 Estimating simple forms of breeding values

8.2 Calculating breeding values and selection response

8.3 Calculating heritability for threshold traits (diseases)


Critical Values of the Chi-Square Distribution

        df      .20     .10     .05     .02     .01     .001    .0001
        -------------------------------------------------------------
        1        1.64    2.71    3.84    5.41    6.63   10.83   15.14
        2        3.22    4.61    5.99    7.82    9.21   13.82   18.42
        3        4.64    6.25    7.81    9.84   11.34   16.27   21.11
        4        5.99    7.78    9.49   11.67   13.28   18.47   23.51
        5        7.29    9.24   11.07   13.39   15.09   20.51   25.74

        6        8.56   10.64   12.59   15.03   16.81   22.46   27.86
        7        9.80   12.02   14.07   16.62   18.48   24.32   29.88
        8       11.03   13.36   15.51   18.17   20.09   26.12   31.83
        9       12.24   14.68   16.92   19.68   21.67   27.88   33.72
        10      13.44   15.99   18.31   21.16   23.21   29.59   35.56

Link to some basic statistical formulas


Other programs

4.4 Calculation of inbreeding coefficients

6.4 Calculation of the heritability by statistical analyses

7.3 Direct updating of breeding values

Applets for handling of matrices.

Bryan Lewis's General Matrix Applet, with added inversion routine 


The java language from sun is used to develop the applets, java.sun.com is linked here