GeomSectorPanel {ggsector}

ggplot sector

Description

Draw sector with ggplot2.

Usage

geom_sector(
  mapping = NULL,
  data = NULL,
  stat = "identity",
  position = "identity",
  ...,
  na.rm = FALSE,
  show.legend = NA,
  inherit.aes = TRUE,
  individual = FALSE,
  verbose = TRUE
)

Arguments

mapping

Set of aesthetic mappings created by aes() or aes_(). If specified and inherit.aes = TRUE (the default), it is combined with the default mapping at the top level of the plot. You must supply mapping if there is no plot mapping.

data

The data to be displayed in this layer. There are three options:

If NULL, the default, the data is inherited from the plot data as specified in the call to ggplot().

A data.frame, or other object, will override the plot data. All objects will be fortified to produce a data frame. See fortify() for which variables will be created.

A function will be called with a single argument, the plot data. The return value must be a data.frame, and will be used as the layer data. A function can be created from a formula (e.g. ~ head(.x, 10)).

stat

The statistical transformation to use on the data for this layer, as a string.

position

Position adjustment, either as a string, or the result of a call to a position adjustment function.

...

Other arguments passed on to layer(). These are often aesthetics, used to set an aesthetic to a fixed value, like colour = "red" or size = 3. They may also be parameters to the paired geom/stat.

na.rm

If FALSE, the default, missing values are removed with a warning. If TRUE, missing values are silently removed.

show.legend

logical. Should this layer be included in the legends? NA, the default, includes if any aesthetics are mapped. FALSE never includes, and TRUE always includes. It can also be a named logical vector to finely select the aesthetics to display.

inherit.aes

If FALSE, overrides the default aesthetics, rather than combining with them. This is most useful for helper functions that define both data and aesthetics and shouldn't inherit behaviour from the default plot specification, e.g. borders().

individual

Logical, default is FALSE. When "individual=FALSE", draw very quickly with a vector form, when "individual=TRUE", draw individually at a slower speed. Anyway, for better presentation, please add coord_fixed().

verbose

Logical, default is TRUE. Whether to display reminder information.

Details

When "individual=FALSE", draw very quickly with a vector form, when "individual=TRUE", draw individually at a slower speed.

The required parameters in mapping are "x", "y", "theta", and the additional modifiable parameters are "r", "start", "r_start", "type", "colour", "fill", "ratio", "size" for line size, "linetype".

When there is coord_fixed(), r = 0.5 means that the sector-shaped background circle just fills the entire cell

The ratio parameter is still an experimental parameter, if it is not necessary, please do not set it yourself. The ratio parameter only works when individual = FALSE. When ratio is null, it will be auto calculated.

For better display effect, please always add coord_fixed().

For details, please check the grid.sector().

For more details, please type vignette("ggsector").

Value

ggplot object

Examples

## prepare data
library(ggsector)
library(reshape2)
df <- cor(mtcars)[1:3, 1:5] %>%
    abs() %>%
    melt(varnames = c("x", "y"))

###
## Note, for better display effect, please always add coord_fixed()
## Note, for better display effect, please always add coord_fixed()
## Note, for better display effect, please always add coord_fixed()

## theta
ggplot(df) +
    ## type = "percent", theta = 0-100
    geom_sector(
        aes(y, x, theta = value * 100),
        type = "percent",
        color = "blue",
        individual = TRUE
    ) +
    ## type = "degree", theta = 0-360
    geom_sector(
        aes(y, x, theta = value * 360),
        type = "degree",
        color = "red",
        alpha = 0.5,
        individual = TRUE
    ) +
    coord_fixed() +
    theme_bw() +
    theme(axis.title = element_blank())

## r
ggplot(df) +
    geom_sector(
        aes(y, x, theta = value * 100),
        r = rep(c(0.15, 0.3, 0.45), 5),
        fill = 2,
        individual = TRUE
    ) +
    coord_fixed() +
    theme_bw() +
    theme(axis.title = element_blank())

## start
ggplot(df) +
    geom_sector(
        aes(y, x, theta = value * 100),
        start = rep(c(60, 40, 20), 5),
        fill = 2,
        individual = TRUE
    ) +
    coord_fixed() +
    theme_bw() +
    theme(axis.title = element_blank())

## r_start
ggplot(df) +
    geom_sector(
        aes(y, x, theta = value * 100),
        r_start = rep(c(0.15, 0.25, 0.35), 5),
        fill = 2,
        individual = TRUE
    ) +
    coord_fixed() +
    theme_bw() +
    theme(axis.title = element_blank())


####################  individual ###################
##########  individual with coord_fixed() ##########

## `individual = TRUE` + coord_fixed()
# x = x, y = y
ggplot(rbind(
    cbind(df, t1 = 1),
    cbind(df[1:9, ], t1 = 2)
)) +
    facet_wrap(~t1, ncol = 2) +
    geom_sector(
        aes(x, y),
        theta = 75,
        fill = 2,
        r = 0.5,
        individual = TRUE
    ) +
    coord_fixed() +
    theme_bw() +
    theme(axis.title = element_blank())

# x = y, y =x
ggplot(rbind(
    cbind(df, t1 = 1),
    cbind(df[1:9, ], t1 = 2)
)) +
    facet_wrap(~t1, ncol = 2) +
    geom_sector(
        aes(y, x),
        theta = 75,
        fill = 2,
        r = 0.5,
        individual = TRUE
    ) +
    coord_fixed() +
    theme_bw() +
    theme(axis.title = element_blank())

## `individual = FALSE` + coord_fixed()
# x = x, y = y
ggplot(rbind(
    cbind(df, t1 = 1),
    cbind(df[1:9, ], t1 = 2)
)) +
    facet_wrap(~t1, ncol = 2) +
    geom_sector(
        aes(x, y),
        theta = 75,
        fill = 2,
        r = 0.5,
        individual = FALSE
    ) +
    coord_fixed() +
    theme_bw() +
    theme(axis.title = element_blank())

# x = y, y =x
ggplot(rbind(
    cbind(df, t1 = 1),
    cbind(df[1:9, ], t1 = 2)
)) +
    facet_wrap(~t1, ncol = 2) +
    geom_sector(
        aes(y, x),
        theta = 75,
        fill = 2,
        r = 0.5,
        individual = TRUE
    ) +
    coord_fixed() +
    theme_bw() +
    theme(axis.title = element_blank())

##########  individual without coord_fixed() ##########
## If you are in a special situation and cannot use coord_fixed(),
## then it is recommended that you use `individual = TRUE` and
## the `r` parameter to fine-tune.
## Also, to reduce the radius, you need to try it manually.

## `individual = TRUE` without coord_fixed()
# x = x, y = y
ggplot(rbind(
    cbind(df, t1 = 1),
    cbind(df[1:9, ], t1 = 2)
)) +
    facet_wrap(~t1, ncol = 2) +
    geom_sector(
        aes(x, y),
        theta = 75,
        fill = 2,
        r = 0.35, ## To reduce the radius, you need to try it manually
        individual = TRUE
    ) +
    theme_bw() +
    theme(axis.title = element_blank())

# x = y, y =x
ggplot(rbind(
    cbind(df, t1 = 1),
    cbind(df[1:9, ], t1 = 2)
)) +
    facet_wrap(~t1, ncol = 2) +
    geom_sector(
        aes(y, x),
        theta = 75,
        fill = 2,
        r = 0.25, ## To reduce the radius, you need to try it manually
        individual = TRUE
    ) +
    theme_bw() +
    theme(axis.title = element_blank())

## `individual = FALSE`
## If you really want to use `individual = FALSE` without coord_fixed(),
## you might try the experimental parameter `ratio'
## You need to manually adjust the `ratio` value
## to prevent sector deformation.
# x = x, y = y
ggplot(rbind(
    cbind(df, t1 = 1),
    cbind(df[1:9, ], t1 = 2)
)) +
    facet_wrap(~t1, ncol = 2) +
    geom_sector(
        aes(x, y),
        theta = 75,
        fill = 2,
        r = 0.5,
        ## You need to manually adjust the `ratio` value
        ## to prevent sector deformation.
        ratio = 1.6,
        individual = FALSE
    ) +
    theme_bw() +
    theme(axis.title = element_blank())

# x = y, y =x
ggplot(rbind(
    cbind(df, t1 = 1),
    cbind(df[1:9, ], t1 = 2)
)) +
    facet_wrap(~t1, ncol = 2) +
    geom_sector(
        aes(y, x),
        theta = 75,
        fill = 2,
        r = 0.5,
        ## You need to manually adjust the `ratio` value
        ## to prevent sector deformation.
        ratio = 1.6,
        individual = FALSE
    ) +
    # coord_fixed() +
    theme_bw() +
    theme(axis.title = element_blank())