> m1= rma(yi, vi, data = md)
> summary(m1)
Random-Effects Model (k = 9; tau^2 estimator: REML)
deviance | AIC | BIC | AICc | |
-16.3360 | 32.6720 | 36.6720 | 36.8309 | 39.0720 |
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tau^2 (estimated amount of total heterogeneity): 0.1611 (SE = 0.2193) tau (square root of estimated tau^2 value): 0.4014
I^2 (total heterogeneity / total variability): 41.26% H^2 (total variability / sampling variability): 1.70
Test for Heterogeneity:
Q(df = 8) = 20.4526, p-val = 0.0088
Model Results:
se | zval | pval | ci.lb | ci.ub | ||
2.2336 | 0.2426 | 9.2051 | <.0001 | 1.7580 | 2.7092 | *** |
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
> forest(m1, slab = paste(md$Models, as.character(md$Year), sep = ", ")
,order=order(CG$Dairung), ilab.xpos=-0.5,xlab="Standarized Mean Differe nce (95% CI)", mlab="RE Model for All Studies",text(-100, 15, "Study", pos=4))
> md=escalc(n1i = N,n2i = N,m1i=E,m2i = E1,sd1i=se,sd2i=se1,data=CG,mea sure = "SMD",append=TRUE)
> summary(md)
Models Year Dairung N Vt st Vs ss
Que; Bach dan | 2008 | Bach dan | 2 | 3.10 | 0.10 | 2.70 | 0.10 | -0.13 | 0.01 | |
2 | Que; Keo chiu han | 2008 | Keo chiu han | 2 | 3.35 | 0.21 | 2.90 | 0.14 | -0.14 | 0.01 |
3 | Thuyet & Hung; Keo chiu han | 2005 | Keo chiu han | 3 | 5.50 | 0.10 | 1.27 | 0.21 | -0.77 | 0.04 |
4 | LA; Keo la liem | 2018 | Keo la liem | 6 | 2.62 | 0.53 | 1.24 | 0.77 | -0.53 | 0.27 |
5 | Lieu; Keo la liem | 2017 | Keo la liem | 9 | 7.16 | 0.11 | 5.53 | 0.81 | -0.23 | 0.11 |
6 | Que; Keo la tram | 2008 | Keo la tram | 6 | 3.40 | 0.17 | 2.65 | 0.20 | -0.22 | 0.04 |
7 | Thuyet; Keo la tram | 2004 | Keo la tram | 14 | 2.19 | 1.53 | 0.78 | 0.22 | -0.49 | 0.28 |
8 | Que; Klt+Kll | 2008 | Klt + Kll | 2 | 3.70 | 0.10 | 2.50 | 0.10 | -0.32 | 0.02 |
9 | Que; Keo tai tuong | 2008 | Keo tai tuong | 2 | 3.00 | 0.10 | 2.20 | 0.10 | -0.27 | 0.03 |
10 | Que; Phi lao | 2008 | Phi lao | 4 | 3.40 | 0.29 | 2.35 | 0.29 | -0.31 | 0.03 |
11 | Thuyet; Phi lao | 2004 | Phi lao | 41 | 4.84 | 1.28 | 2.18 | 0.91 | -0.54 | 0.17 |
12 | Thuyet & Hung; Phi lao | 2005 | Phi lao | 2 | 5.50 | 0.10 | 1.60 | 0.10 | -0.71 | 0.02 |
13 | Que; Xoan AD | 2008 | Xoan AD | 2 | 3.40 | 0.14 | 2.75 | 0.07 | -0.19 | 0.01 |
E1 | se1 | K | sk | K1 | sk1 | yi | vi | sei | zi | pval | ci.lb | |
1 | 0 | 0 | 1.10 | 0.03 | 0 | 0 | -10.3725 | 14.4486 | 3.8011 | -2.7288 | 0.0064 | -17.8226 |
2 | 0 | 0 | 1.15 | 0.07 | 0 | 0 | -11.1704 | 16.5972 | 4.0740 | -2.7419 | 0.0061 | -19.1552 |
3 | 0 | 0 | 4.43 | 0.67 | 0 | 0 | -21.7213 | 39.9846 | 6.3233 | -3.4351 | 0.0006 | -34.1148 |
4 | 0 | 0 | 4.00 | 4.96 | 0 | 0 | -2.5616 | 0.6067 | 0.7789 | -3.2886 | 0.0010 | -4.0883 |
5 | 0 | 0 | 1.31 | 0.19 | 0 | 0 | -2.8158 | 0.4425 | 0.6652 | -4.2331 | <.0001 | -4.1195 |
6 | 0 | 0 | 1.28 | 0.04 | 0 | 0 | -7.1773 | 2.4797 | 1.5747 | -4.5578 | <.0001 | -10.2637 |
7 | 0 | 0 | 3.02 | 2.55 | 0 | 0 | -2.4027 | 0.2459 | 0.4959 | -4.8448 | <.0001 | -3.3747 |
8 | 0 | 0 | 1.50 | 0.04 | 0 | 0 | -12.7662 | 21.3718 | 4.6230 | -2.7615 | 0.0058 | -21.8270 |
9 | 0 | 0 | 1.40 | 0.03 | 0 | 0 | -7.1810 | 7.4458 | 2.7287 | -2.6316 | 0.0085 | -12.5291 |
10 | 0 | 0 | 1.48 | 0.05 | 0 | 0 | -12.6937 | 10.5706 | 3.2513 | -3.9043 | <.0001 | -19.0660 |
11 | 0 | 0 | 2.51 | 1.03 | 0 | 0 | -4.4499 | 0.1695 | 0.4117 | -10.8078 | <.0001 | -5.2569 |
12 | 0 | 0 | 3.40 | 0.50 | 0 | 0 | -28.3249 | 101.2875 | 10.0642 | -2.8144 | 0.0049 | -48.0503 |
13 | 0 | 0 | 1.25 | 0.07 | 0 | 0 | -15.1598 | 29.7275 | 5.4523 | -2.7804 | 0.0054 | -25.8461 |
> m1= rma(yi, vi, data = md)
> summary(m1)
Random-Effects Model (k = 13; tau^2 estimator: REML)
deviance | AIC | BIC | AICc | |
-39.2304 | 78.4607 | 82.4607 | 83.4306 | 83.7941 |
tau^2 (estimated amount of total heterogeneity): 18.8626 (SE = 10.9385) tau (square root of estimated tau^2 value): 4.3431
94.40% | |
H^2 (total variability / sampling variability): | 17.86 |
Test for Heterogeneity: Q(df = 12) = 57.0245, p-val < .0001 | |
Model Results: |
se | zval pval | ci.lb | ci.ub | |
-7.7614 | 1.4811 | -5.2402 <.0001 | -10.6643 | -4.8585 *** |
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
> summary(md)
Models Year Dairung N Vt st Vs ss E
Que; Bach dan | 2008 | Bach dan | 2 | 3.10 | 0.10 | 2.70 | 0.10 | -0.13 | 0.01 | 0 | 0 | |
2 | Que; Keo chiu han | 2008 | Keo chiu han | 2 | 3.35 | 0.21 | 2.90 | 0.14 | -0.14 | 0.01 | 0 | 0 |
3 | Thuyet & Hung; Keo chiu han | 2005 | Keo chiu han | 3 | 5.50 | 0.10 | 1.27 | 0.21 | -0.77 | 0.04 | 0 | 0 |
4 | LA; Keo la liem | 2018 | Keo la liem | 6 | 2.62 | 0.53 | 1.24 | 0.77 | -0.53 | 0.27 | 0 | 0 |
5 | Lieu; Keo la liem | 2017 | Keo la liem | 9 | 7.16 | 0.11 | 5.53 | 0.81 | -0.23 | 0.11 | 0 | 0 |
6 | Que; Keo la tram | 2008 | Keo la tram | 6 | 3.40 | 0.17 | 2.65 | 0.20 | -0.22 | 0.04 | 0 | 0 |
7 | Thuyet; Keo la tram | 2004 | Keo la tram | 14 | 2.19 | 1.53 | 0.78 | 0.22 | -0.49 | 0.28 | 0 | 0 |
8 | Que; Klt+Kll | 2008 | Klt + Kll | 2 | 3.70 | 0.10 | 2.50 | 0.10 | -0.32 | 0.02 | 0 | 0 |
9 | Que; Keo tai tuong | 2008 | Keo tai tuong | 2 | 3.00 | 0.10 | 2.20 | 0.10 | -0.27 | 0.03 | 0 | 0 |
10 | Que; Phi lao | 2008 | Phi lao | 4 | 3.40 | 0.29 | 2.35 | 0.29 | -0.31 | 0.03 | 0 | 0 |
11 | Thuyet; Phi lao | 2004 | Phi lao | 41 | 4.84 | 1.28 | 2.18 | 0.91 | -0.54 | 0.17 | 0 | 0 |
12 | Thuyet & Hung; Phi lao | 2005 | Phi lao | 2 | 5.50 | 0.10 | 1.60 | 0.10 | -0.71 | 0.02 | 0 | 0 |
13 | Que; Xoan AD | 2008 | Xoan AD | 2 | 3.40 | 0.14 | 2.75 | 0.07 | -0.19 | 0.01 | 0 | 0 |
K | sk | K1 | sk1 | yi | vi | sei | zi | pval | ci.lb | ci.ub | ||
1 | 1.10 | 0.03 | 0 | 0 | 29.2558 | 107.9875 | 10.3917 | 2.8153 | 0.0049 | 8.8884 | 49.6231 | |
2 | 1.15 | 0.07 | 0 | 0 | 13.1081 | 22.4778 | 4.7411 | 2.7648 | 0.0057 | 3.8158 | 22.4004 | |
3 | 4.43 | 0.67 | 0 | 0 | 7.4608 | 5.3053 | 2.3033 | 3.2391 | 0.0012 | 2.9464 | 11.9752 | |
4 | 4.00 | 4.96 | 0 | 0 | 1.0524 | 0.3795 | 0.6160 | 1.7084 | 0.0876 | -0.1550 | 2.2598 | |
5 | 1.31 | 0.19 | 0 | 0 | 9.2851 | 2.6170 | 1.6177 | 5.7396 | <.0001 | 6.1144 | 12.4557 | |
6 | 1.28 | 0.04 | 0 | 0 | 41.7587 | 72.9912 | 8.5435 | 4.8878 | <.0001 | 25.0138 | 58.5036 | |
7 | 3.02 | 2.55 | 0 | 0 | 1.6260 | 0.1901 | 0.4360 | 3.7296 | 0.0002 | 0.7715 | 2.4805 | |
8 | 1.50 | 0.04 | 0 | 0 | 29.9207 | 112.9058 | 10.6257 | 2.8159 | 0.0049 | 9.0947 | 50.7467 | |
9 | 1.40 | 0.03 | 0 | 0 | 37.2346 | 174.3020 | 13.2024 | 2.8203 | 0.0048 | 11.3585 | 63.1107 | |
10 | 1.48 | 0.05 | 0 | 0 | 36.3613 | 83.1342 | 9.1178 | 3.9880 | <.0001 | 18.4908 | 54.2319 | |
11 | 2.51 | 1.03 | 0 | 0 | 3.4139 | 0.1198 | 0.3462 | 9.8614 | <.0001 | 2.7353 | 4.0924 | |
12 | 3.40 | 0.50 | 0 | 0 | 5.4256 | 4.6797 | 2.1633 | 2.5081 | 0.0121 | 1.1857 | 9.6655 | |
13 | 1.25 | 0.07 | 0 | 0 | 14.2479 | 26.3755 | 5.1357 | 2.7743 | 0.0055 | 4.1821 | 24.3137 |