nahu: Nassar and Huehn Function

In phenability: Nonparametric Stability Analysis

Description

Performs a stability analysis based on Nassar and Huehn (1987) and, Huehn (1979) statistics. the four nonparametric measures of phenotypic stability are: S1 (mean of the absolute rank differences of a genotype over the n environments), S2 (variance among the ranks over the k environments), S3 (sum of the absolute deviations), and S6 (relative sum of squares of rank for each genotype).

Usage

nahu(data, interaction=FALSE)

Arguments

nahu	nahu function
data	A numeric data.frame with fenotypic means values of MET, and genotypes and environments by rows and columns, respectively.
interaction	do a interaction plot or not (FALSE = no interaction plot output, TRUE = draws a interaction plot between genotypes and environments).

Value

Is returned a list with four numerical statistics values (S1, S2, S3, and S6) by genotype, the ranking for the response variable in each environment, and the Spearman correlation matrix between environments.

Author(s)

Leonardo Castelo Branco

References

Nassar, R., and M. Huehn. 1987. Studies on estimation of phenotypic stability: Tests of significance for nonparametric measures of phenotypic stability. Biometrics 43:45.

Huehn, V.M. 1979. Beitrage zur erfassung der phanotypischen stabilitat. EDV Med. Biol. 10:112.

Examples

require("phenability")
data(bean.data)
bean.data
x <- bean.data

nahu(x, interaction = TRUE)

Example output

Loading required package: calibrate
Loading required package: MASS
            amb1      amb2      amb3      amb4      amb5      amb6      amb7
gen.1  1876.0132  580.1336 1102.1329 1694.3390 1040.3267  958.7855 1465.6294
gen.2  1224.8315 1599.9807 1616.9573  395.2670  392.4058 1100.5016 1159.9766
gen.3   799.1166 1165.5360 1172.3761 1149.6839  782.4377  736.0342 1297.6377
gen.4   808.3602 1233.7027  771.4292 1333.5782 1220.2328  381.9811 1524.4457
gen.5   529.9144 1033.1097  491.9874  880.9993  315.2501  673.2503 1263.0355
gen.6   326.3020  278.4195 1746.5750 1149.6915  346.9321 1065.4055  513.3746
gen.7  1459.2760 1404.5660  495.5804  773.7891 1000.7307  847.4174  448.1284
gen.8  1317.7675 1376.4696  598.2780  473.5051 1223.3170 1368.9601 1327.0293
gen.9   983.3902  376.8588  780.8219  470.0283  396.3393 1354.4275  896.4749
gen.10  722.7654  974.4625  661.9539  652.7477  903.7073  576.9118  736.5914
gen.11 1229.6109  851.5887  745.9299  906.7176  973.9830 1346.0270 1058.4020
gen.12 1043.3212  617.2716  974.2837 1037.6560  971.6247 1078.3051 1295.3918
gen.13  341.1982  685.3680  603.1955 1022.0222  853.8024 1387.0857  824.3692
gen.14  665.5990 1473.0143  475.2420  541.0226 1233.5949 1017.4761  790.1826
gen.15  868.7864 1014.6633 1194.4329  503.4676 1051.8005  603.6481 1285.9557
gen.16  803.0182 1025.6424 1589.6594  822.7065  660.4002  905.9402  750.4918
gen.17 1224.5300 1238.5302  752.9923 1121.6568  478.2070  744.0402  196.2177
gen.18  163.1802 1233.8551  398.5611  780.2014  747.8843  988.5657  488.5755
gen.19 1177.6481  733.8016 1168.7249 1113.4105  617.9172 1193.6416  603.1633
gen.20  876.1860 1053.9475  902.3634 1151.1592  642.5597  849.4451  599.6830
             amb8       amb9     amb10
gen.1  1539.93401  946.71726 1474.6661
gen.2   951.94145 1676.19309  630.4553
gen.3   432.82820  898.33159 1413.7588
gen.4   897.79793  766.71987  891.1993
gen.5   572.63016 1085.02470  733.8290
gen.6   908.54461 1915.71367  869.3689
gen.7   668.36158  517.05097  671.2000
gen.8   308.09976 1368.72448  848.2916
gen.9    14.03106  149.58377 1655.0976
gen.10 1197.51759  694.82455 1276.9141
gen.11  449.64985   43.82170 1665.8922
gen.12  756.84222 1417.54358  922.8569
gen.13  858.34642 1296.92472 1756.6516
gen.14  918.61909  962.29621 1424.9181
gen.15  505.83497  819.77122  508.5664
gen.16 1453.45411  401.02068  806.3003
gen.17  765.52868  942.06440  791.1057
gen.18 1432.84696 1357.24505  234.0949
gen.19  856.01060 1363.87412 1236.5254
gen.20  436.45272   84.29305  948.2408
      Gen      Mean     S1      S2      S3     S6
1   gen.1 1267.8678 0.1778 46.7667    18.8 2.9333
2   gen.2  1074.851 0.3778 51.1667   38.76   4.88
3   gen.3  984.7741 0.1333 26.2778 20.4414 3.8739
4   gen.4  982.9447      0 40.3222 26.1901 3.8843
5   gen.5  757.9031 0.0444 25.0667    25.5 5.3333
6   gen.6  912.0327 0.2444 56.9444 50.9412 6.4706
7   gen.7  828.6101 0.0222 38.1778 38.3034 5.6854
8   gen.8 1021.0442 0.2444 51.3889 36.6984 5.1429
9   gen.9  707.7053 0.3778    48.1 48.2439 7.0732
10 gen.10  839.8396 0.1778 21.7889 21.2353 4.1176
11 gen.11  927.1623 0.3778 35.7333 27.6486 4.2342
12 gen.12 1011.5097    0.2 15.8222 10.6774  2.129
13 gen.13  962.8964 0.1111 36.2667 26.3805 3.8053
14 gen.14  950.1965 0.1333 45.7333 29.7826 4.3478
15 gen.15  835.6927 0.1556 34.7667 31.3077  4.967
16 gen.16  921.8634 0.0444 28.1778    20.4    3.4
17 gen.17  825.4873 0.0444 30.3222 23.6667 4.1935
18 gen.18   782.501 0.3778 52.7222 46.2927 6.5854
19 gen.19 1006.4717 0.0444    26.1 13.5128 3.0427
20 gen.20   754.433 0.2222 22.6667 22.7363 4.2857

phenability documentation built on May 2, 2019, 2:48 p.m.