Generation Means Analysis

OPSTAT provides Generation Means analysis for replicated data as well as on means basis. Data is arranged in such a way that the observations for the first sample of P1 for all the replications are entered in the first line and observations are delimited by spaces or tabs. Data for the second sample of P1 is entered in the next line as entered for the first sample, i.e., every sample data must be entered in a single line. After entering the data of all the samples for P1, the data for P2, F1, F2, BC1, and BC2 are entered, and so on. If you have more than one character, then you can enter the data for the second character just after the first, provided that you have the same number of samples and replications for each generation in each character. You can enter as many characters as you wish, provided that they have similar types of data.

Example: Sample Data for Generation Means Analysis

Generations	R1	R2
P1	10	9
	8	10
	9	10
P2	3	4
	2	3
	3	3
F1	15	16
	18	14
	12	15
F2	10	8
	12	7
	10	10
	9	12
	8	12
	9	10
	3	6
	4	3
	2	4
	6	8
BC1	15	16
	16	17
	16	17
	15	18
	18	15
BC2	4	3
	6	4
	5	6
	5	4
	4	4

Data Entry Instructions

Enter only data (not generation names such as P1, P2, etc.) from the above table in a file or text area provided on the web page. The data file will look like this:

10.0  9.0
8.0  10.0
9.0  10.0
3.0  4.0
2.0  3.0
3.0  3.0
15.0  16.0
18.0  14.0
12.0  15.0
10.0  8.0
12.0  7.0
10.0  10.0
9.0  12.0
8.0  12.0
9.0  10.0
3.0  6.0
4.0  3.0
2.0  4.0
6.0  8.0
15.0  16.0
16.0  17.0
16.0  17.0
15.0  18.0
18.0  15.0
4.0  3.0
6.0  4.0
5.0  6.0
5.0  4.0
4.0  4.0

Procedure of Analysis

Click the Browse button and select the data file, and thereafter press the Send button or Enter/paste the data in the text area of the page as explained above and press the Submit button.
A new web page will be displayed where you have to supply the following information:

Number of Generations
If you select the option “Replicated Data” in data type, then you will have to specify the number of replications.
Specify the number of Characters in your data file for which analysis is required.
Specify the sample sizes (Plants) for P1, P2, F1, F2, BC1, and BC2 whichever is applicable according to the model you are using.

Press the Analyze button.

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Generations	R1	R2
P1	10	9
	8	10
	9	10
P2	3	4
	2	3
	3	3
F1	15	16
	18	14
	12	15
F2	10	8
	12	7
	10	10
	9	12
	8	12
	9	10
	3	6
	4	3
	2	4
	6	8
BC1	15	16
	16	17
	16	17
	15	18
	18	15
BC2	4	3
	6	4
	5	6
	5	4
	4	4

Generations	R1	R2
P1	10	9
	8	10
	9	10
P2	3	4
	2	3
	3	3
F1	15	16
	18	14
	12	15
F2	10	8
	12	7
	10	10
	9	12
	8	12
	9	10
	3	6
	4	3
	2	4
	6	8
BC1	15	16
	16	17
	16	17
	15	18
	18	15
BC2	4	3
	6	4
	5	6
	5	4
	4	4

Generations	R1	R2
P1	10	9
	8	10
	9	10
P2	3	4
	2	3
	3	3
F1	15	16
	18	14
	12	15
F2	10	8
	12	7
	10	10
	9	12
	8	12
	9	10
	3	6
	4	3
	2	4
	6	8
BC1	15	16
	16	17
	16	17
	15	18
	18	15
BC2	4	3
	6	4
	5	6
	5	4
	4	4