Package 'ggsem'

Convert CSV files (from ggsem Shiny app) to ggplot output

Description

This function converts the four CSV files from the ggsem Shiny app into a ggplot output object. The ggplot output can then be modified using standard ggplot2 functions, such as ggtitle() and annotate().

Usage

csv_to_ggplot(
  points_data = NULL,
  lines_data = NULL,
  annotations_data = NULL,
  loops_data = NULL,
  element_order = c("lines", "points", "self_loops", "annotations"),
  zoom_level = 1.2,
  horizontal_position = 0,
  vertical_position = 0,
  n = 100
)

Arguments

points_data	An object that stores the CSV file containing information about points from the ggsem shiny app. The default is NULL.
lines_data	An object that stores the CSV file containing information about lines from the ggsem shiny app. The default is NULL.
annotations_data	An object that stores the CSV file containing information about text annotations from the ggsem shiny app. The default is NULL.
loops_data	An object that stores the CSV file containing information about self-loop arrows from the ggsem shiny app. The default is NULL.
element_order	Order of the graphical elements on display. This is the order in which the graphical elements are added. So if it is written later, then it gets added later (more front), such as: c("lines", "points", "self_loops", "annotations"), which sets annotations to be added last (and hence most front).
zoom_level	A numeric value to control the zoom level of the plot. Default is 1.2.
horizontal_position	A numeric value for adjusting the horizontal position of the plot. Default is 0.
vertical_position	A numeric value for adjusting the vertical position of the plot. Default is 0.
n	Number of points to be used for interpolation (for gradient lines or curved lines). Default is 100.

Value

A ggplot object is returned as the function's output.

Examples

library(ggplot2)

# CSV files from ggsem app
points_data <- data.frame(
x = 5, y = 5, shape = 'square', color = '#D0C5ED', size = 50,
border_color = '#9646D4', border_width = 2, alpha = 1,
locked = FALSE, lavaan = FALSE
)

lines_data <- data.frame(
x_start = 2, y_start = -2, x_end = 8, y_end = -2, ctrl_x = NA, ctrl_y = NA,
type = 'Straight Line', color = '#000000', end_color = NA, color_type = 'Single',
gradient_position = NA, width = 1, alpha = 1, arrow = FALSE,
arrow_type = NA, arrow_size = NA, two_way = FALSE, lavaan = FALSE,
line_style = 'solid'
)

csv_to_ggplot(points_data = points_data,
              lines_data = lines_data,
              zoom_level = 1.4, # From the ggsem app
              horizontal_position = 14, # From the ggsem app
              element_order = c('lines', 'points')) # order priority: lines < points

---

Write text annotations from an annotation CSV file (from ggsem Shiny app) on a ggplot object

Description

This function adds text annotations onto any ggplot output (including your own plots not created from the ggsem Shiny app).

Usage

draw_annotations(p, annotations_data, zoom_level = 1)

Arguments

p	A ggplot2 object
annotations_data	The object that stores the CSV file containing information about text annotations from the ggsem Shiny app.
zoom_level	A numeric value to control the zoom level of the plot. Default is 1.

Value

A ggplot object is returned as the function's output.

Examples

library(ggplot2)

annotations_data <- data.frame(
text = 'Square One', x = 26, y = 300, font = 'serif',
size = 20, color = '#000000', angle = 0, alpha = 1,
fontface = 'bold', math_expression = FALSE,
lavaan = FALSE
)

p <- ggplot(mtcars) + geom_point(aes(mpg, disp))

draw_annotations(p, annotations_data, zoom_level = 1.2)

---

Draw lines from a line CSV File (from ggsem Shiny app) on a ggplot object

Description

This function adds lines onto any ggplot output (including your own plots not created from the ggsem Shiny app).

Usage

draw_lines(p, lines_data, zoom_level = 1, n = 100)

Arguments

p	A ggplot object
lines_data	An object that stores the CSV file containing information about lines from the ggsem Shiny app.
zoom_level	A numeric value to control the zoom level of the plot. Default is 1.
n	Number of points to be used for interpolation (for gradient lines or curved lines). Default is 100.

Value

A ggplot object is returned as the function's output.

Examples

library(ggplot2)

lines_data <- data.frame(
x_start = 2, y_start = -2, x_end = 10, y_end = -2, ctrl_x = NA, ctrl_y = NA,
type = 'Straight Line', color = '#000000', end_color = '#cc3d3d', color_type = 'Gradient',
gradient_position = 0.35, width = 1.5, alpha = 1, arrow = FALSE,
arrow_type = NA, arrow_size = NA, two_way = FALSE, lavaan = FALSE,
line_style = 'solid'
)

p <- ggplot(mtcars) + geom_point(aes(mpg, disp))

draw_lines(p, lines_data, zoom_level = 1.2, n = 400)

---

Draw self-loop arrows from a self-loop arrow CSV file (from ggsem Shiny app) on a ggplot object

Description

This function adds self-loop arrows onto any ggplot output (including your own plots not created from the ggsem shiny app).

Usage

draw_loops(p, loops_data, zoom_level = 1)

Arguments

p	A ggplot object
loops_data	An object that stores the CSV file containing information about self-loop arrows from the ggsem shiny app.
zoom_level	A numeric value to control the zoom level of the plot. Default is 1.

Value

A ggplot object is returned as the function's output.

Examples

library(ggplot2)

loops_data <- data.frame(
x_center = -5, y_center = 5, radius = 2, color = '#000000', width = 1,
alpha = 1, arrow_type = 'closed', arrow_size = 0.1, gap_size = 0.2,
loop_width = 1, loop_height = 20, orientation = 0,
two_way = FALSE, locked = FALSE
)

p <- ggplot(mtcars) + geom_point(aes(mpg, disp))

draw_loops(p, loops_data, zoom_level = 1.2)

---

Draw points from a point CSV file (from ggsem Shiny app) on a ggplot object

Description

This function adds points onto any ggplot output (including your own plots not created from the ggsem shiny app).

Usage

draw_points(p, points_data, zoom_level = 1)

Arguments

p	A ggplot object
points_data	An object that stores the CSV file containing information about points from the ggsem shiny app.
zoom_level	A numeric value to control the zoom level of the plot. Default is 1.

Value

A ggplot object is returned as the function's output.

Examples

library(ggplot2)

points_data <- data.frame(
x = 20, y = 300, shape = 'square', color = '#D0C5ED', size = 50,
border_color = '#9646D4', border_width = 2, alpha = 1,
locked = FALSE, lavaan = FALSE
)

p <- ggplot(mtcars) + geom_point(aes(mpg, disp))

draw_points(p, points_data, zoom_level = 1.2)

---

Get axis range of a ggplot object

Description

A function to calculate the range of x- and y- axes.

Usage

get_axis_range(plot)

Arguments

plot	ggplot output from csv_to_ggplot()

Value

A list object that has two elements, each of which has two vector values. The first element stores the minimum and maximum values of the plot's x-axis range, while the second element stores the minimum and maximum values of the plot's y-axis range.

Examples

library(ggplot2)
ggplot(mtcars) + geom_point(aes(mpg, disp)) -> p1
get_axis_range(p1)

---

Run ggsem (shiny app) locally through a browser

Description

Run ggsem (shiny app) locally through a browser

Usage

ggsem()

Value

No return value, called for side effects

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