Scatter2

Authors

[Editor] Hu Zheng;

[Contributors]

Modified

2026-01-17

Note

Hiplot website

This page is the tutorial for source code version of the Hiplot Scatter2 plugin. You can also use the Hiplot website to achieve no code ploting. For more information please see the following link:

https://hiplot.cn/basic/scatter2?lang=en

Two-dimensional spatial scatter to demonstrate multi-numerical variable relationships.

Setup

  • System Requirements: Cross-platform (Linux/MacOS/Windows)

  • Programming language: R

  • Dependent packages: data.table; jsonlite; grafify; ggplot2

# Install packages
if (!requireNamespace("data.table", quietly = TRUE)) {
  install.packages("data.table")
}
if (!requireNamespace("jsonlite", quietly = TRUE)) {
  install.packages("jsonlite")
}
if (!requireNamespace("grafify", quietly = TRUE)) {
  install.packages("grafify")
}
if (!requireNamespace("ggplot2", quietly = TRUE)) {
  install.packages("ggplot2")
}

# Load packages
library(data.table)
library(jsonlite)
library(grafify)
library(ggplot2)
sessioninfo::session_info("attached")
─ Session info ───────────────────────────────────────────────────────────────
 setting  value
 version  R version 4.5.2 (2025-10-31)
 os       Ubuntu 24.04.3 LTS
 system   x86_64, linux-gnu
 ui       X11
 language (EN)
 collate  C.UTF-8
 ctype    C.UTF-8
 tz       UTC
 date     2026-01-17
 pandoc   3.1.3 @ /usr/bin/ (via rmarkdown)
 quarto   1.8.27 @ /usr/local/bin/quarto

─ Packages ───────────────────────────────────────────────────────────────────
 package    * version date (UTC) lib source
 data.table * 1.18.0  2025-12-24 [1] RSPM
 ggplot2    * 4.0.1   2025-11-14 [1] RSPM
 grafify    * 5.1.0   2025-08-25 [1] RSPM
 jsonlite   * 2.0.0   2025-03-27 [1] RSPM

 [1] /home/runner/work/_temp/Library
 [2] /opt/R/4.5.2/lib/R/site-library
 [3] /opt/R/4.5.2/lib/R/library
 * ── Packages attached to the search path.

──────────────────────────────────────────────────────────────────────────────

Data Preparation

# Load data
data <- data.table::fread(jsonlite::read_json("https://hiplot.cn/ui/basic/scatter2/data.json")$exampleData[[1]]$textarea[[1]])
data <- as.data.frame(data)

# View data
head(data[,1:5])
                car  mpg cyl  disp  hp
1    Hornet 4 Drive 21.4   6 258.0 110
2 Hornet Sportabout 18.7   8 360.0 175
3           Valiant 18.1   6 225.0 105
4        Duster 360 14.3   8 360.0 245
5        Merc 450SE 16.4   8 275.8 180
6        Merc 450SL 17.3   8 275.8 180

Visualization

# scatter2
symsize <- data[,"gear"]
data[,"gear"] <- factor(data[,"gear"], levels = unique(data[,"gear"]))
p <- ggplot(data, aes(x = mpg, y = disp)) + 
  geom_point(alpha = 1, aes(size = gear, fill = gear), shape = 21, stroke = 0.5) +
  labs(fill = "gear", color = "gear") +
  guides(x = guide_axis(angle = 0),
         fill = guide_legend(title = "gear"),
         color = FALSE,
         size = guide_legend(title = "gear")) +
  ggtitle("Scatter2 Plot") +
  scale_fill_grafify() +
  theme_classic(base_size = 20) +
  theme(text = element_text(family = "Arial"),
        strip.background = element_blank(),
        plot.title = element_text(size = 12,hjust = 0.5),
        axis.title = element_text(size = 12),
        axis.text = element_text(size = 10),
        axis.text.x = element_text(angle = 0, hjust = 0.5,vjust = 1),
        legend.position = "right",
        legend.direction = "vertical",
        legend.title = element_text(size = 10),
        legend.text = element_text(size = 10))

p
FigureΒ 1: scatter2