SummarySE（Rmisc包）生成带有误差条的条形图（ggplot2）
我正在尝试使用ggplot2包构建一个带错误条的条形图，在x轴上显示13个预测变量（数据框behaviours可以在下面找到）。理想情况下，预测变量将按响应变量（family）分组，该变量包含两个级别（G8和V4），由每个预测变量的两个彩色条加一个键表示。我试图按照Cookbook for R中的一个例子（见下文）。我想使用summarySE包中的函数Rmisc来汇总数据，以计算标准偏差，均值的标准误差和（默认的95％）置信区间，但是，我的代码显示警告信息并返回NA。我不确定函数summarySE()的正确语法是什么。如何为我的数据实现R Cookbook示例？
我的代码使用函数`summarySE'：
library(ggplot2)
library(Rmisc)
# (1) First Try - Equation 1
summary.behaviours <- summarySE(behaviours,
measurevar="Family",
groupvars=c("Swimming",
"Not.Swimming",
"Running",
"Not.Running",
"Fighting",
"Not.Fighting",
"Resting",
"Not.Resting",
"Hunting",
"Not.Hunting",
"Grooming",
"Not.Grooming",
"Other"),
na.rm = TRUE)
# (2) Second Try - Equation 2
summary.behaviours <- summarySE(behaviours,
measurevar = c("Swimming",
"Not.Swimming",
"Running",
"Not.Running",
"Fighting",
"Not.Fighting",
"Resting",
"Not.Resting",
"Hunting",
"Not.Hunting",
"Grooming",
"Not.Grooming",
"Other"),
groupvar="Family",
na.rm = TRUE)
警告信息
公式（1）的警告消息
1: In mean.default(xx[, col], na.rm = na.rm) :
argument is not numeric or logical: returning NA
2: In mean.default(xx[, col], na.rm = na.rm) :
argument is not numeric or logical: returning NA
以及更多同类警告。
等式（2）的错误消息：
Error in `[.data.frame`(xx, , col) : undefined columns selected
Cookbook for R
的示例代码参考：http://www.cookbook-r.com/Graphs/Plotting_means_and_error_bars_(ggplot2)/
summarySE提供标准偏差，均值的标准误差和（默认的95％）置信区间
tgc <- summarySE(tg, measurevar="len", groupvars=c("supp","dose"))
tgc
#> supp dose N len sd se ci
#> 1 OJ 0.5 10 13.23 4.459709 1.4102837 3.190283
#> 2 OJ 1.0 10 22.70 3.910953 1.2367520 2.797727
#> 3 OJ 2.0 10 26.06 2.655058 0.8396031 1.899314
#> 4 VC 0.5 10 7.98 2.746634 0.8685620 1.964824
#> 5 VC 1.0 10 16.77 2.515309 0.7954104 1.799343
#> 6 VC 2.0 10 26.14 4.797731 1.5171757 3.432090
# Use dose as a factor rather than numeric
tgc2 <- tgc
tgc2$dose <- factor(tgc2$dose)
# Error bars represent standard error of the mean
ggplot(tgc2, aes(x=dose, y=len, fill=supp)) +
geom_bar(position=position_dodge(), stat="identity") +
geom_errorbar(aes(ymin=len-se, ymax=len+se),
width=.2, # Width of the error bars
position=position_dodge(.9))
# Use 95% confidence intervals instead of SEM
ggplot(tgc2, aes(x=dose, y=len, fill=supp)) +
geom_bar(position=position_dodge(), stat="identity") +
geom_errorbar(aes(ymin=len-ci, ymax=len+ci),
width=.2, # Width of the error bars
position=position_dodge(.9))
我的数据
behaviours <- structure(list(Family = structure(c(2L, 2L, 2L, 2L, 2L, 2L, 2L,
2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L,
2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L), .Label = c("G8", "v4"), class = "factor"),
Swimming = c(-0.4805568, 0.12600625, 0.06823834, 0.67480139,
0.64591744, 0.21265812, -0.01841352, 0.12600625, -0.2206012,
0.27042603, 0.03935439, -0.45167284, -0.04729748, -0.10506539,
0.0971223, -0.07618143, 0.29930998, 0.01047043, -0.24948516,
-0.04729748, -0.01841352, -0.19171725, -0.4805568, 0.01047043,
-0.42278889, -0.45167284, -0.30725307, 0.24154207, 1.45466817,
-0.01841352, 0.38596185, 0.15489021, -0.04729748, 0.27042603,
-0.07618143, -0.10506539, -0.01841352, 0.01047043, 0.06823834,
-0.16283329, -0.01841352, -0.39390493, -0.04729748, 0.01047043,
0.01047043, 0.06823834, -0.04729748, -0.2206012, -0.16283329,
-0.07618143, -0.2206012, -0.19171725, -0.16283329, -0.2206012,
-0.13394934, -0.27836911, -0.04729748, 0.01047043, 0.12600625,
0.06823834, 0.06823834, 0.32819394, 0.32819394, -0.27836911,
0.18377416, 0.55926557, -0.19171725, -0.19171725, 0.01047043,
-0.19171725, -0.01841352, -0.07618143, -0.13394934, -0.39390493,
-0.04729748, -0.27836911, 0.70368535, 0.29930998, -0.13394934,
0.21265812), Not.Swimming = c(-0.0862927, -0.074481895, -0.056765686,
-0.050860283, -0.050860283, -0.068576492, -0.068576492, 0.05543697,
0.114491, -0.021333268, -0.04495488, 0.008193747, -0.056765686,
0.008193747, 0.037720761, 0.01409915, 0.108585597, -0.074481895,
0.002288344, 0.049531567, 0.043626164, 0.049531567, 0.020004552,
0.008193747, 0.025909955, 0.031815358, 0.049531567, -0.039049477,
-0.003617059, 0.002288344, 0.084963985, -0.080387298, 0.067247776,
0.031815358, 0.037720761, 0.025909955, 0.126301805, 0.031815358,
0.037720761, -0.050860283, -0.039049477, -0.003617059, 0.008193747,
-0.039049477, -0.003617059, 0.008193747, 0.01409915, -0.015427865,
0.020004552, 0.031815358, 0.020004552, -0.033144074, -0.039049477,
-0.009522462, -0.003617059, -0.04495488, -0.050860283, -0.04495488,
-0.068576492, -0.033144074, -0.027238671, -0.068576492, 0.01409915,
0.002288344, 0.025909955, -0.009522462, -0.009522462, 0.025909955,
0.15582882, 0.002288344, -0.04495488, -0.015427865, 0.008193747,
0.037720761, 0.008193747, -0.015427865, -0.056765686, 0.079058582,
-0.056765686, 0.025909955), Running = c(-0.157157188, 0.057316151,
0.064711783, 0.153459372, 0.072107416, 0.057316151, -0.053618335,
0.012942357, -0.03882707, 0.049920519, 0.012942357, -0.075805232,
0.035129254, -0.046222702, 0.109085578, -0.03882707, 0.057316151,
0.020337989, 0.035129254, 0.057316151, 0.005546724, -0.016640173,
-0.142365923, 0.220020063, -0.149761556, -0.134970291, 0.042524886,
0.072107416, 0.064711783, 0.020337989, 0.049920519, 0.020337989,
0.138668107, 0.049920519, 0.020337989, -0.083200864, -0.024035805,
-0.016640173, -0.03882707, -0.03882707, 0.005546724, -0.090596497,
-0.00924454, -0.016640173, -0.075805232, -0.090596497, 0.012942357,
-0.075805232, -0.061013967, -0.03882707, -0.112783394, -0.068409599,
-0.090596497, -0.053618335, -0.075805232, -0.090596497, 0.064711783,
0.012942357, 0.042524886, -0.061013967, -0.061013967, 0.064711783,
0.175646269, -0.068409599, 0.027733621, 0.042524886, -0.03882707,
-0.00924454, 0.027733621, -0.031431438, -0.046222702, -0.031431438,
-0.068409599, -0.120179026, 0.035129254, -0.061013967, 0.39751524,
0.138668107, 0.020337989, 0.035129254), Not.Running = c(-0.438809944,
-0.539013927, -0.539013927, -0.539013927, -0.472211271, -0.071395338,
-0.071395338, 0.296019267, 0.563229889, -0.03799401, 0.195815284,
-0.171599321, -0.305204632, 0.062209973, -0.104796666, 0.095611301,
0.028808645, -0.071395338, 0.329420595, 0.296019267, -0.171599321,
-0.071395338, 0.596631217, 0.062209973, 0.028808645, -0.138197994,
0.095611301, -0.104796666, 0.296019267, 0.028808645, -0.03799401,
-0.33860596, 0.129012629, 0.195815284, -0.03799401, 0.396223251,
0.362821923, -0.138197994, 0.26261794, -0.405408616, -0.205000649,
0.129012629, 0.195815284, -0.205000649, -0.004592683, -0.205000649,
-0.071395338, -0.171599321, -0.104796666, -0.138197994, -0.104796666,
-0.071395338, -0.104796666, -0.03799401, -0.004592683, -0.238401977,
0.028808645, -0.305204632, -0.305204632, -0.271803305, -0.03799401,
-0.372007288, 0.095611301, 0.195815284, 0.162413956, 0.229216612,
0.229216612, 0.396223251, 0.630032545, 0.463025906, 0.496427234,
0.062209973, -0.071395338, 0.229216612, -0.071395338, -0.071395338,
-0.205000649, 0.229216612, -0.305204632, 0.396223251), Fighting = c(-0.67708172,
-0.58224128, -0.11436177, -0.34830152, -0.84568695, -0.32933343,
0.35984044, -0.3251183, 1.51478626, 0.11114773, 0.27975296,
-0.89626852, 0.12379312, 0.66965255, 1.56536783, 0.56427428,
-0.71291033, -0.75927677, -0.75295407, -1.00164679, -1.03958296,
0.82139726, -1.07541157, -1.0311527, -0.98900139, -1.06908888,
-1.20186549, 0.58324237, -0.9700333, 0.22917139, 0.41042201,
-1.11545531, -0.19023412, 0.25446217, -0.05324237, 0.09007207,
1.21129685, 0.62539368, 1.32932051, 0.40199175, 0.44625062,
0.60221046, 0.33665722, -0.63493041, -0.282967, -0.32722587,
-0.11646933, -0.10171637, 0.13643851, -0.57802615, 0.05002833,
-0.1607282, -0.29139726, 0.13222338, -0.41152848, 0.68229794,
-0.24292325, -0.11646933, -0.21341734, -0.24292325, -0.24292325,
0.09007207, -0.34197883, -0.30825778, -0.08696342, -0.8119659,
0.49683219, -0.13754498, -0.4831857, 0.39988418, 0.90148474,
0.28396809, 1.05322945, 1.24923303, 0.47154141, 1.27873894,
0.05002833, 1.54218461, 0.74763247, 0.11747042), Not.Fighting = c(-0.097624192,
-0.160103675, -0.092996082, -0.234153433, -0.136963126, -0.15778962,
-0.15778962, -0.023574435, 0.00188017, -0.224897213, -0.109194467,
-0.069855533, -0.123078796, -0.111508522, -0.143905291, -0.099938247,
-0.118450687, 1.519900201, 0.177748344, 0.108326696, 0.652129604,
0.638245274, -0.072169588, 0.087500202, -0.18093017, -0.146219346,
-0.049029039, -0.125392851, -0.134649071, -0.060599313, -0.086053918,
-0.197128554, -0.083739863, -0.092996082, 0.844196163, 0.055103433,
1.971140911, -0.111508522, -0.224897213, -0.187872334, -0.160103675,
-0.194814499, -0.053657149, -0.206384774, 0.108326696, -0.164731785,
0.187004564, 0.025020719, 0.057417488, 0.434608441, 0.057417488,
0.073615872, -0.035144709, -0.051343094, -0.134649071, -0.185558279,
0.013450444, -0.134649071, -0.215640993, -0.185558279, -0.005061995,
-0.238781543, -0.099938247, -0.16704584, -0.208698829, 0.048161268,
0.048161268, -0.037458764, 0.16154996, 0.031962884, -0.102252302,
-0.123078796, -0.139277181, -0.208698829, -0.118450687, -0.072169588,
-0.044400929, -0.030516599, -0.132335016, -0.037458764),
Resting = c(0.01081204879, -0.03398160805, 0.057108797, -0.04063432116,
-0.13084281035, -0.02997847693, 0.12732080268, -0.1028170581,
0.08155320398, -0.17932134171, -0.14338902206, -0.02058415581,
-0.11528274705, -0.11764091337, 0.04389156236, 0.01399844913,
-0.05755560242, 0.04711630687, 0.0158428036, 0.093485909,
0.09677967302, 0.02053612974, -0.03608286844, 0.07805238146,
-9.686695e-05, -0.02285413055, -0.00424187149, 0.01446241356,
0.03187450017, 0.11323315542, -0.01171898422, -0.06499053655,
-0.07758659568, -0.07399758157, -0.11503350996, 0.02167111711,
0.01904454162, 0.05768779393, 0.05555202379, -0.01031175326,
-0.00458313459, 0.17430774591, 0.00481502094, -0.00928412956,
0.09047589183, 0.08917985896, -0.05671203072, -0.05333390954,
0.08541446168, 0.10140397965, -0.02509342995, -0.0369877908,
0.04609635201, 0.06524159499, 0.0845977309, -0.03239032508,
-0.03208740616, 0.06264952925, 0.05241547086, -0.03437271856,
-0.03437271856, -0.06747523863, -0.01270059491, 0.10014629095,
-0.02872845706, -0.00950652573, 0.04867308008, 0.02486518629,
-0.05951115497, -0.02353665674, -0.01967923345, -0.10148651548,
-0.00480936518, -0.00098261723, -0.13970798195, -0.00286148145,
-0.05492902692, 0.10732815358, 0.11660744219, -0.02016620439
), Not.Resting = c(-0.77046287, 0.773856776, -2.593072768,
-2.837675606, -1.680828329, -0.947623773, -0.947623773, -2.607366431,
-0.637055341, -1.818396455, 2.170944974, -0.658126752, -0.808243774,
2.377766908, 2.111220276, -0.322326312, 2.218858946, 3.920878638,
-0.304945754, 1.038591535, 1.752268128, 0.907465624, 1.137774798,
-3.663486997, 2.350924346, 0.067293462, -1.898454393, -2.497647463,
-4.471716512, -1.465081244, -0.232806371, -3.043893581, -2.323908986,
1.437404886, 1.079056696, 1.110865131, 1.404724068, -1.706664294,
0.736746935, -0.005516985, 1.727170333, 1.685228831, 1.836016918,
0.46617392, 1.697173771, 1.057314221, 0.933704227, 0.482480775,
0.680713089, 0.090780703, 0.680713089, -0.982921741, -2.281900378,
0.97208909, 0.027767791, -0.1628815, -0.530221948, -0.385741863,
-0.972251823, 0.002267358, -1.134447998, 0.626424009, -0.722750217,
-0.382722075, -0.356550578, -1.851614124, -1.851614124, 1.731465143,
0.254319006, 2.043778341, -0.28991392, 1.386940871, 0.054207713,
0.594212936, 1.551821303, 3.100704184, 0.327263666, -1.055195336,
-1.134447998, 1.730726972), Hunting = c(-0.67708172, -0.58224128,
-0.11436177, -0.34830152, -0.84568695, -0.32933343, 0.35984044,
-0.3251183, 1.51478626, 0.11114773, 0.27975296, -0.89626852,
0.12379312, 0.66965255, 1.56536783, 0.56427428, -0.71291033,
-0.75927677, -0.75295407, -1.00164679, -1.03958296, 0.82139726,
-1.07541157, -1.0311527, -0.98900139, -1.06908888, -1.20186549,
0.58324237, -0.9700333, 0.22917139, 0.41042201, -1.11545531,
-0.19023412, 0.25446217, -0.05324237, 0.09007207, 1.21129685,
0.62539368, 1.32932051, 0.40199175, 0.44625062, 0.60221046,
0.33665722, -0.63493041, -0.282967, -0.32722587, -0.11646933,
-0.10171637, 0.13643851, -0.57802615, 0.05002833, -0.1607282,
-0.29139726, 0.13222338, -0.41152848, 0.68229794, -0.24292325,
-0.11646933, -0.21341734, -0.24292325, -0.24292325, 0.09007207,
-0.34197883, -0.30825778, -0.08696342, -0.8119659, 0.49683219,
-0.13754498, -0.4831857, 0.39988418, 0.90148474, 0.28396809,
1.05322945, 1.24923303, 0.47154141, 1.27873894, 0.05002833,
1.54218461, 0.74763247, 0.11747042), Not.Hunting = c(-0.097624192,
-0.160103675, -0.092996082, -0.234153433, -0.136963126, -0.15778962,
-0.15778962, -0.023574435, 0.00188017, -0.224897213, -0.109194467,
-0.069855533, -0.123078796, -0.111508522, -0.143905291, -0.099938247,
-0.118450687, 1.519900201, 0.177748344, 0.108326696, 0.652129604,
0.638245274, -0.072169588, 0.087500202, -0.18093017, -0.146219346,
-0.049029039, -0.125392851, -0.134649071, -0.060599313, -0.086053918,
-0.197128554, -0.083739863, -0.092996082, 0.844196163, 0.055103433,
1.971140911, -0.111508522, -0.224897213, -0.187872334, -0.160103675,
-0.194814499, -0.053657149, -0.206384774, 0.108326696, -0.164731785,
0.187004564, 0.025020719, 0.057417488, 0.434608441, 0.057417488,
0.073615872, -0.035144709, -0.051343094, -0.134649071, -0.185558279,
0.013450444, -0.134649071, -0.215640993, -0.185558279, -0.005061995,
-0.238781543, -0.099938247, -0.16704584, -0.208698829, 0.048161268,
0.048161268, -0.037458764, 0.16154996, 0.031962884, -0.102252302,
-0.123078796, -0.139277181, -0.208698829, -0.118450687, -0.072169588,
-0.044400929, -0.030516599, -0.132335016, -0.037458764),
Grooming = c(0.01081204879, -0.03398160805, 0.057108797,
-0.04063432116, -0.13084281035, -0.02997847693, 0.12732080268,
-0.1028170581, 0.08155320398, -0.17932134171, -0.14338902206,
-0.02058415581, -0.11528274705, -0.11764091337, 0.04389156236,
0.01399844913, -0.05755560242, 0.04711630687, 0.0158428036,
0.093485909, 0.09677967302, 0.02053612974, -0.03608286844,
0.07805238146, -9.686695e-05, -0.02285413055, -0.00424187149,
0.01446241356, 0.03187450017, 0.11323315542, -0.01171898422,
-0.06499053655, -0.07758659568, -0.07399758157, -0.11503350996,
0.02167111711, 0.01904454162, 0.05768779393, 0.05555202379,
-0.01031175326, -0.00458313459, 0.17430774591, 0.00481502094,
-0.00928412956, 0.09047589183, 0.08917985896, -0.05671203072,
-0.05333390954, 0.08541446168, 0.10140397965, -0.02509342995,
-0.0369877908, 0.04609635201, 0.06524159499, 0.0845977309,
-0.03239032508, -0.03208740616, 0.06264952925, 0.05241547086,
-0.03437271856, -0.03437271856, -0.06747523863, -0.01270059491,
0.10014629095, -0.02872845706, -0.00950652573, 0.04867308008,
0.02486518629, -0.05951115497, -0.02353665674, -0.01967923345,
-0.10148651548, -0.00480936518, -0.00098261723, -0.13970798195,
-0.00286148145, -0.05492902692, 0.10732815358, 0.11660744219,
-0.02016620439), Not.Grooming = c(-0.77046287, 0.773856776,
-2.593072768, -2.837675606, -1.680828329, -0.947623773, -0.947623773,
-2.607366431, -0.637055341, -1.818396455, 2.170944974, -0.658126752,
-0.808243774, 2.377766908, 2.111220276, -0.322326312, 2.218858946,
3.920878638, -0.304945754, 1.038591535, 1.752268128, 0.907465624,
1.137774798, -3.663486997, 2.350924346, 0.067293462, -1.898454393,
-2.497647463, -4.471716512, -1.465081244, -0.232806371, -3.043893581,
-2.323908986, 1.437404886, 1.079056696, 1.110865131, 1.404724068,
-1.706664294, 0.736746935, -0.005516985, 1.727170333, 1.685228831,
1.836016918, 0.46617392, 1.697173771, 1.057314221, 0.933704227,
0.482480775, 0.680713089, 0.090780703, 0.680713089, -0.982921741,
-2.281900378, 0.97208909, 0.027767791, -0.1628815, -0.530221948,
-0.385741863, -0.972251823, 0.002267358, -1.134447998, 0.626424009,
-0.722750217, -0.382722075, -0.356550578, -1.851614124, -1.851614124,
1.731465143, 0.254319006, 2.043778341, -0.28991392, 1.386940871,
0.054207713, 0.594212936, 1.551821303, 3.100704184, 0.327263666,
-1.055195336, -1.134447998, 1.730726972), Other = c(0.019502286,
-0.290451956, 0.359948884, 0.557840914, 0.117453376, 0.126645924,
0.126645924, 0.196486873, 0.152780228, 0.354469789, -0.261430968,
0.176448238, -0.007374708, -0.557848621, -0.213674557, -0.005819262,
-0.470070992, -0.786078864, 0.006063789, -0.27184265, -0.349418792,
-0.338096262, -0.165119403, 0.346566439, -0.344191931, 0.074321265,
0.179825379, 0.278407054, 0.593125727, 0.199177375, -0.058900625,
0.633875622, 0.428150308, -0.206023441, -0.436958199, -0.291839246,
-0.907641911, 0.448567295, -0.127186127, 0.024715134, -0.41634503,
-0.330697382, -0.469720666, -0.047494017, -0.301732446, -0.138901021,
0.098101379, -0.002063769, -0.02832419, 0.071630763, -0.02832419,
0.295110588, 0.347112947, -0.083577573, -0.036886152, 0.189045953,
0.467596992, 0.303378276, 0.218879697, 0.092005711, 0.27011134,
-0.012909856, 0.262292068, 0.107125772, 0.123422927, 0.299426602,
0.299426602, -0.326871824, -0.022088391, -0.428508341, -0.014675497,
-0.114462294, 0.087227267, -0.031519161, -0.159318008, -0.397875854,
0.101520559, 0.244481505, 0.529968994, -0.32661959)), .Names = c("Family",
"Swimming", "Not.Swimming", "Running", "Not.Running", "Fighting",
"Not.Fighting", "Resting", "Not.Resting", "Hunting", "Not.Hunting",
"Grooming", "Not.Grooming", "Other"), class = "data.frame", row.names = c(NA,
-80L))
1 个答案:
答案 0 :(得分：3)
您发布的代码变体都不起作用，因为它们错误地使用了函数summarySE()：
- 版本1：您使用
Family作为测量变量，这意味着您要求函数给出Family的均值，标准差等。 - 版本2：您按
Family正确分组，但现在您提供了许多测量变量。这不起作用，因为summarySE()需要单个测量变量。试着想象输出表应该如何看几个测量变量，你会发现这是不可能的。sd有13列，ci有13列，等等。
您的数据存在的问题是，游泳“，”Not.Swimming“，”正在运行“等实际上是值而非变量。（详细解释）这个答案太多了;如果您需要更多信息，请参阅here。）因此，您需要将数据转换为所谓的长格式：
library(tidyr)
long_behaviours <- gather(behaviours, variable, value, -Family)
long_behaviours[c(1, 120, 313, 730), ]
## Family variable value
## 1 v4 Swimming -0.48055680
## 120 G8 Not.Swimming -0.05086028
## 313 G8 Not.Running -0.07139534
## 730 v4 Not.Hunting -0.22489721
从我从结果数据框中“随机”选取的几行中可以看到，现在有一个列可以为您提供预测变量和一个包含数值的列。现在，您可以使用value作为summarySE中的度量变量，并将其他两个分组：
library(Rmisc)
sum_behaviours <- summarySE(long_behaviours, measurevar = "value",
groupvar = c("Family", "variable"), na.rm = TRUE)
head(sum_behaviours)
## Family variable N value sd se ci
## 1 G8 Fighting 50 0.157977831 0.58253445 0.082382813 0.16555446
## 2 G8 Grooming 50 0.003784713 0.06611479 0.009350043 0.01878961
## 3 G8 Hunting 50 0.157977831 0.58253445 0.082382813 0.16555446
## 4 G8 Not.Fighting 50 -0.007098363 0.33806726 0.047809930 0.09607765
## 5 G8 Not.Grooming 50 0.202045803 1.30151612 0.184062175 0.36988679
## 6 G8 Not.Hunting 50 -0.007098363 0.33806726 0.047809930 0.09607765
现在，每个族和变量都有一个表格，包含均值，标准差等。这是根据R-Cookbook中的示例生成绘图所需的数据：
library(ggplot2)
ggplot(sum_behaviours, aes(x = variable, y = value, fill = Family)) +
geom_bar(position=position_dodge(), stat="identity") +
geom_errorbar(aes(ymin = value - ci, ymax = value + ci),
width=.2, position=position_dodge(.9)) +
theme(axis.text.x = element_text(angle = 45, hjust = 1))
有点侧面评论：我个人更喜欢箱形图来比较各种变量的分布：
ggplot(long_behaviours, aes(x = variable, y = value, fill = Family)) +
geom_boxplot() +
theme(axis.text.x = element_text(angle = 45, hjust = 1))
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