plotly parcoords (parallel coordinates) cannot plot a single line
Nobody has claimed this yet.
Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 35/100
- Issue type
- Bug
- Clarity
- Clearly specified
- Activity status
- Stale
- Tech stack
- r
- Domain
- data-visualization
Research direction
Start by running the supplied R example with plot_ly(type = 'parcoords') and the one-row iris data frame. Trace the parallel-coordinates rendering path to determine why a single line is omitted; done means the example renders that line without warnings or errors.
Written by the indexing model from the issue text.
Description
The following generates no plot, no warnings and no errors:
# Example from https://plotly.com/r/parallel-coordinates-plot/
library(plotly)
df <- read.csv("https://raw.githubusercontent.com/bcdunbar/datasets/master/iris.csv")
df <- df[1L, , drop=FALSE] # plot one line only
fig <- df %>% plot_ly(type = 'parcoords',
line = list(color = ~species_id,
colorscale = list(c(0,'red'),c(0.5,'green'),c(1,'blue'))),
dimensions = list(
list(range = c(2,4.5),
label = 'Sepal Width', values = ~sepal_width),
list(range = c(4,8),
constraintrange = c(5,6),
label = 'Sepal Length', values = ~sepal_length),
list(range = c(0,2.5),
label = 'Petal Width', values = ~petal_width),
list(range = c(1,7),
label = 'Petal Length', values = ~petal_length)
)
)
fig
- Dominant language
- R
- Stars
- 2.7k
- Forks
- 641
- PR merge metrics
- No merged PRs in 30d
Contributor guide
First steps
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