我正在使用Plotly制作散点三元图。我想用数据框中的值之一(标题为mu)为点着色。但是,颜色栏未显示。这是我的代码:
library(plotly)
df <- eqData0
# axis layout
axis <- function(title) {
list(
title = title,
titlefont = list(
size = 20
),
tickfont = list(
size = 15
),
tickcolor = 'rgba(0,0,0,0)',
ticklen = 5
)
}
fig <- df %>% plot_ly()
fig <- fig %>% add_trace(
type = 'scatterternary',
mode = 'markers',
a = ~u1eq,
b = ~u2eq,
c = ~bueq,
marker = list(
symbol = 100,
color = ~mu,
size = 14,
line = list('width' = 2),
colorscale = 'YlGnBu'
),
colorbar = list(
xanchor = 'middle',
yanchor = 'middle'
)
)
m <- list(
l = 50,
r = 50,
b = 100,
t = 100,
pad = 4
)
fig <- fig %>% layout(autosize = F, width = 500, height = 500, margin = m,
ternary = list(
sum = 1,
aaxis = axis(TeX("$u_1$")),
baxis = axis(TeX("$u_2$")),
caxis = axis(TeX("$\\bar{u}$"))
)
)
fig <- fig %>% config(mathjax = 'cdn')
fig
以某种方式仍然无法显示颜色栏!我不确定为什么会这样,因为所有在线的Plotly散点图示例都使显示颜色条看起来很容易。
似乎您在跟踪定义中缺少showscale=TRUE
。尝试:
#fake data:
df <- data.frame(u1eq = c(0.2, 0.3, 0.5), u2eq=c(0.6, 0.3, 0.1), bueq=c(0.2, 0.4, 0.4), mu=c(1, 1.8, 2))
# axis layout
axis <- function(title) {
list(
title = title,
titlefont = list(
size = 20
),
tickfont = list(
size = 15
),
tickcolor = 'rgba(0,0,0,0)',
ticklen = 5
)
}
fig <- df %>% plot_ly()
fig <- fig %>% add_trace(
type = 'scatterternary',
mode = 'markers',
a = ~u1eq,
b = ~u2eq,
c = ~bueq,
marker = list(
colorscale = 'YlGnBu',
symbol = 100,
color = ~mu,
size = 14,
line = list('width' = 2),
showscale = TRUE
)
)
m <- list( l = 50, r = 50, b = 100, t = 100, pad = 4)
fig <- fig %>% layout(autosize = F, width = 500, height = 500, margin = m,
ternary = list(
sum = 1,
aaxis = axis(TeX("$u_1$")),
baxis = axis(TeX("$u_2$")),
caxis = axis(TeX("$\\bar{u}$")) )
) %>% config(mathjax = 'cdn')
fig