【发布时间】:2017-07-09 04:37:35
【问题描述】:
我想在 R 中围绕 plot_ly() 编写一个自定义函数。这样,我可以制作一系列具有相同格式和样式的散点图,但不会重复代码。 I used this page as a guide.此代码重现错误:
library(plotly)
my_plot <- function(x, y, ...) {
require(broom)
plot_ly(data = mtcars, y = y, x = x, showlegend = FALSE, ...) %>%
add_markers(y = y) %>%
add_lines(y = ~fitted(lm(y ~ x))) %>%
add_ribbons(data = augment(lm(y ~ x, data = mtcars)),
ymin = ~.fitted - 1.96 * .se.fit,
ymax = ~.fitted + 1.96 * .se.fit,
line = list(color = 'rgba(7, 164, 181, 0.05)'),
fillcolor = 'rgba(7, 164, 181, 0.2)',
name = "Standard Error")
}
my_plot(y = ~mpg, x = ~disp)
问题线是:
add_lines(y = ~fitted(lm(y ~ x))) %>%
我尝试使用 as.formula(),但错误信息类似。
add_lines(y = ~fitted(lm(as.formula("y ~ x"))) %>%
这是错误信息:
model.frame.default 中的错误(公式 = y ~ x,数据 = mtcars,drop.unused.levels = TRUE): 对象不是矩阵
代码在不是函数时有效:
library(plotly)
library(broom)
plot_ly(data = mtcars, y = ~mpg, x = ~disp, showlegend = FALSE) %>%
add_markers(y = ~mpg) %>%
add_lines(y = ~fitted(lm(mpg ~ disp))) %>%
add_ribbons(data = augment(lm(mpg ~ disp, data = mtcars)),
ymin = ~.fitted - 1.96 * .se.fit,
ymax = ~.fitted + 1.96 * .se.fit,
line = list(color = 'rgba(7, 164, 181, 0.05)'),
fillcolor = 'rgba(7, 164, 181, 0.2)',
name = "Standard Error")
【问题讨论】:
标签: r function plotly lm broom