Geom text

The text labels repel away from each other geom text away from the data points. If specified and inherit. You only need to supply mapping if there isn't a mapping defined for the plot.

If specified and inherit. You must supply mapping if there is no plot mapping. If NULL , the default, the data is inherited from the plot data as specified in the call to ggplot. A 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.

Geom text

The goal of the geomtextpath package is to directly label line-based plots with text that is able to follow a curved path. It is an extension of the ggplot2 plotting library. The geomtextpath extension follows these ggplot2 conventions and displays the path and the text by projecting the text along the curve. All of the line-based geom layers in ggplot2 indicated below, have text and text-box equivalents in the geomtextpath package:. Each of these aims to provide the same functionality as the equivalent ggplot2 geom, but with the addition of a label aesthetic that will automatically label the line, even if it follows a curved path. However, the flexibility of ggplot2 allows that most stats can be combined with any geom. The mechanism underlying the text positioning will take account of the plotting window however it is rescaled. This means text continues to stick together and follow the path at the correct angle as the plotting window changes in size or in aspect ratio. This is all done in the background, without the need to call your plotting code again every time the window is resized. For example, here is the same plot drawn with different dimensions:. Everything that you see in your plotting device when you draw a ggplot is made up of grobs.

The details of the display are described in? There are limitations inherent in the plotting of text elements in ggplot due to the way that the underlying grid graphics handles geom text.

However, there are some occasions when it is useful to have text follow a curved path. Direct and automatic text labels that adhere to their associated line can also provide a neat alternative to legends, without the need for specifying exact label positions, and with a lower risk of overplotting. Using geomtextpath, your text can follow any path, and will remain correctly spaced and angled, even if you change the size and aspect ratio of your plotting device. It does so without the need to redraw your plot each time, as shown in the introduction vignette. You can install the development version of geomtextpath from GitHub with:. They take their co-ordinates, their y co-ordinates and their text label from an aesthetic mapping. At its most basic, this allows the label to be plotted on an arbitrary path, as shown in the following example:.

This article describes how to add a text annotation to a plot generated using ggplot2 package. In the last sections, examples using ggrepel extensions are provided. The function sample can be used to randomly extract 10 rows:. The grid package is required :. Facet : In the plot below, the annotation is at the same place in each facet even if the axis scales vary. We start by creating a simple scatter plot using a subset of the mtcars data set containing 15 rows.

Geom text

If specified and inherit. You must supply mapping if there is no plot mapping. If NULL , the default, the data is inherited from the plot data as specified in the call to ggplot. A data.

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Of course, the point of this package is not to produce such graphical novelties, but to provide an easy and visually appealing way to present your data. Recommended for You! It can also be a named logical vector to finely select the aesthetics to display. Useful for offsetting text from points, particularly on discrete scales. Tips Not every graphics device renders text equally well. By default, any labels that would have been upside down or even mostly upside down are automatically flipped to be facing in a legible direction. Amount of padding around label, as unit or number. Learn more about setting these aesthetics in vignette "ggplot2-specs". I have a suggestion. Direct and automatic text labels that adhere to their associated line can also provide a neat alternative to legends, without the need for specifying exact label positions, and with a lower risk of overplotting. Note that we can't provide technical support on individual packages. Rich text support The geoms here also feature richtext support.

Text geoms are useful for labeling plots. They can be used by themselves as scatterplots or in combination with other geoms, for example, for labeling points or for annotating the height of bars.

The grid package is required :. Enjoyed this article? Horizontal and vertical adjustment to nudge labels by. The best way to show this is with a head-to-head comparison. A data frame. Defaults to NA , which means that set. The fill aesthetic controls the background colour of the label. The fill aesthetic controls the background colour of the label. We have included the ability to have point-like text paths. Infos This analysis has been performed using R software ver. Tweet to rdrrHQ. Other arguments passed on to layer. However, the flexibility of ggplot2 allows that most stats can be combined with any geom. The return value must be a data. Everything that you see in your plotting device when you draw a ggplot is made up of grobs.