Add standard error estimates, in parentheses, to parameter estimates (edge labels) in a qgraph::qgraph object.
mark_se(semPaths_plot, object, sep = " ", digits = 2L, ests = NULL)Arguments
- semPaths_plot
A qgraph object generated by
semPaths, or a similar qgraph object modified by other semptools functions.- object
The object used by semPaths to generate the plot. Use the same argument name used in
semPathsto make the meaning of this argument obvious. Currently only object of class lavaan is supported.- sep
A character string to separate the coefficient and the standard error (in parentheses). Default to " " (one space). Use
"\n"to enforce a line break.- digits
Integer indicating number of decimal places for the appended standard errors. Default is 2L.
- ests
A data.frame from the
parameterEstimatesfunction. Only used whenobjectis not specified.
Value
If the input is a qgraph::qgraph object, the function returns a qgraph based on the original one, with standard error estimates appended. If the input is a list of qgraph objects, the function returns a list of the same length.
Details
Modify a qgraph::qgraph object generated by
semPaths (currently in parentheses) to the
labels. Require the original object used in the
semPaths call.
Currently supports only plots based on lavaan
output.
This function is a variant of, and can be combined with, the
mark_sig function.
Examples
mod_pa <-
'x1 ~~ x2
x3 ~ x1 + x2
x4 ~ x1 + x3
'
fit_pa <- lavaan::sem(mod_pa, pa_example)
lavaan::parameterEstimates(fit_pa)[ , c("lhs", "op", "rhs",
"est", "pvalue", "se")]
#> lhs op rhs est pvalue se
#> 1 x1 ~~ x2 0.005 0.957 0.097
#> 2 x3 ~ x1 0.537 0.000 0.097
#> 3 x3 ~ x2 0.376 0.000 0.093
#> 4 x4 ~ x1 0.111 0.382 0.127
#> 5 x4 ~ x3 0.629 0.000 0.108
#> 6 x3 ~~ x3 0.874 0.000 0.124
#> 7 x4 ~~ x4 1.194 0.000 0.169
#> 8 x1 ~~ x1 0.933 0.000 0.132
#> 9 x2 ~~ x2 1.017 0.000 0.144
m <- matrix(c("x1", NA, NA,
NA, "x3", "x4",
"x2", NA, NA), byrow = TRUE, 3, 3)
p_pa <- semPlot::semPaths(fit_pa, whatLabels = "est",
style = "ram",
nCharNodes = 0, nCharEdges = 0,
layout = m)
p_pa2 <- mark_se(p_pa, fit_pa)
plot(p_pa2)
mod_cfa <-
'f1 =~ x01 + x02 + x03
f2 =~ x04 + x05 + x06 + x07
f3 =~ x08 + x09 + x10
f4 =~ x11 + x12 + x13 + x14
'
fit_cfa <- lavaan::sem(mod_cfa, cfa_example)
lavaan::parameterEstimates(fit_cfa)[ , c("lhs", "op", "rhs",
"est", "pvalue", "se")]
#> lhs op rhs est pvalue se
#> 1 f1 =~ x01 1.000 NA 0.000
#> 2 f1 =~ x02 1.097 0.000 0.137
#> 3 f1 =~ x03 1.247 0.000 0.154
#> 4 f2 =~ x04 1.000 NA 0.000
#> 5 f2 =~ x05 -0.040 0.587 0.073
#> 6 f2 =~ x06 1.098 0.000 0.132
#> 7 f2 =~ x07 0.771 0.000 0.099
#> 8 f3 =~ x08 1.000 NA 0.000
#> 9 f3 =~ x09 0.937 0.000 0.148
#> 10 f3 =~ x10 1.785 0.000 0.262
#> 11 f4 =~ x11 1.000 NA 0.000
#> 12 f4 =~ x12 0.949 0.000 0.134
#> 13 f4 =~ x13 -0.077 0.356 0.083
#> 14 f4 =~ x14 1.184 0.000 0.161
#> 15 x01 ~~ x01 0.969 0.000 0.129
#> 16 x02 ~~ x02 0.853 0.000 0.130
#> 17 x03 ~~ x03 0.976 0.000 0.159
#> 18 x04 ~~ x04 0.725 0.000 0.130
#> 19 x05 ~~ x05 0.954 0.000 0.095
#> 20 x06 ~~ x06 1.161 0.000 0.176
#> 21 x07 ~~ x07 0.903 0.000 0.114
#> 22 x08 ~~ x08 1.026 0.000 0.125
#> 23 x09 ~~ x09 1.119 0.000 0.129
#> 24 x10 ~~ x10 0.566 0.009 0.218
#> 25 x11 ~~ x11 1.231 0.000 0.163
#> 26 x12 ~~ x12 1.032 0.000 0.141
#> 27 x13 ~~ x13 0.990 0.000 0.099
#> 28 x14 ~~ x14 0.985 0.000 0.172
#> 29 f1 ~~ f1 0.855 0.000 0.176
#> 30 f2 ~~ f2 1.119 0.000 0.201
#> 31 f3 ~~ f3 0.585 0.000 0.143
#> 32 f4 ~~ f4 0.943 0.000 0.209
#> 33 f1 ~~ f2 -0.173 0.059 0.092
#> 34 f1 ~~ f3 0.387 0.000 0.089
#> 35 f1 ~~ f4 -0.178 0.041 0.087
#> 36 f2 ~~ f3 -0.112 0.132 0.074
#> 37 f2 ~~ f4 0.593 0.000 0.122
#> 38 f3 ~~ f4 -0.181 0.014 0.074
p_cfa <- semPlot::semPaths(fit_cfa, whatLabels = "est",
style = "ram",
nCharNodes = 0, nCharEdges = 0)
# Place standard errors on a new line
p_cfa2 <- mark_se(p_cfa, fit_cfa, sep = "\n")
plot(p_cfa2)
mod_sem <-
'f1 =~ x01 + x02 + x03
f2 =~ x04 + x05 + x06 + x07
f3 =~ x08 + x09 + x10
f4 =~ x11 + x12 + x13 + x14
f3 ~ f1 + f2
f4 ~ f1 + f3
'
fit_sem <- lavaan::sem(mod_sem, sem_example)
lavaan::parameterEstimates(fit_sem)[ , c("lhs", "op", "rhs",
"est", "pvalue", "se")]
#> lhs op rhs est pvalue se
#> 1 f1 =~ x01 1.000 NA 0.000
#> 2 f1 =~ x02 1.124 0.000 0.166
#> 3 f1 =~ x03 1.310 0.000 0.191
#> 4 f2 =~ x04 1.000 NA 0.000
#> 5 f2 =~ x05 0.079 0.205 0.062
#> 6 f2 =~ x06 1.120 0.000 0.121
#> 7 f2 =~ x07 0.736 0.000 0.093
#> 8 f3 =~ x08 1.000 NA 0.000
#> 9 f3 =~ x09 0.819 0.000 0.084
#> 10 f3 =~ x10 1.230 0.000 0.112
#> 11 f4 =~ x11 1.000 NA 0.000
#> 12 f4 =~ x12 0.773 0.000 0.068
#> 13 f4 =~ x13 0.064 0.160 0.046
#> 14 f4 =~ x14 0.928 0.000 0.073
#> 15 f3 ~ f1 0.612 0.000 0.131
#> 16 f3 ~ f2 0.584 0.000 0.093
#> 17 f4 ~ f1 -0.542 0.001 0.170
#> 18 f4 ~ f3 0.980 0.000 0.127
#> 19 x01 ~~ x01 1.055 0.000 0.138
#> 20 x02 ~~ x02 1.015 0.000 0.149
#> 21 x03 ~~ x03 1.028 0.000 0.178
#> 22 x04 ~~ x04 0.933 0.000 0.144
#> 23 x05 ~~ x05 0.795 0.000 0.080
#> 24 x06 ~~ x06 0.771 0.000 0.156
#> 25 x07 ~~ x07 1.071 0.000 0.126
#> 26 x08 ~~ x08 0.976 0.000 0.134
#> 27 x09 ~~ x09 0.937 0.000 0.115
#> 28 x10 ~~ x10 1.164 0.000 0.177
#> 29 x11 ~~ x11 1.008 0.000 0.161
#> 30 x12 ~~ x12 1.033 0.000 0.131
#> 31 x13 ~~ x13 0.846 0.000 0.085
#> 32 x14 ~~ x14 0.807 0.000 0.135
#> 33 f1 ~~ f1 0.714 0.000 0.168
#> 34 f2 ~~ f2 1.277 0.000 0.229
#> 35 f3 ~~ f3 0.759 0.000 0.151
#> 36 f4 ~~ f4 1.188 0.000 0.221
#> 37 f1 ~~ f2 0.016 0.856 0.088
p_sem <- semPlot::semPaths(fit_sem, whatLabels = "est",
style = "ram",
nCharNodes = 0, nCharEdges = 0)
# Mark significance, and then add standard errors
p_sem2 <- mark_sig(p_sem, fit_sem)
p_sem3 <- mark_se(p_sem2, fit_sem, sep = "\n")
plot(p_sem3)
