# Plot observed and fitted trajectories from fitted brokenstick model

Source:`R/plot.R`

`plot_trajectory.Rd`

Plot observed and fitted trajectories from fitted brokenstick model

## Usage

```
plot_trajectory(
x,
newdata = NULL,
hide = c("right", "left", "boundary", "internal", "none"),
.x = NULL,
group = NULL,
color_y = c(grDevices::hcl(240, 100, 40, 0.7), grDevices::hcl(240, 100, 40, 0.8)),
size_y = 2,
linetype_y = 1,
shape_y = 19,
color_yhat = c(grDevices::hcl(0, 100, 40, 0.7), grDevices::hcl(0, 100, 40, 0.8)),
size_yhat = 2,
linetype_yhat = 1,
shape_yhat = 19,
color_imp = c("grey80", "grey80"),
size_imp = 2,
ncol = 3L,
xlab = NULL,
ylab = NULL,
xlim = NULL,
ylim = NULL,
show = c(TRUE, TRUE, FALSE),
n_plot = 3L,
scales = "fixed",
theme = ggplot2::theme_light(),
whatknots = "droplast",
...
)
```

## Arguments

- x
An object of class

`brokenstick`

.- newdata
A

`data.frame`

or`matrix`

- hide
Character indicating which knots should

- .x
The

`x`

argument of the`predict.brokenstick()`

function.- group
A vector with group identifications

- color_y
A character vector with two elements specifying the symbol and line color of the measured data points

- size_y
Dot size of measured data points

- linetype_y
Line type of data points

- shape_y
Symbol for data points

- color_yhat
A character vector with two elements specifying the symbol and line color of the predicted data points

- size_yhat
Dot size of predicted data points

- linetype_yhat
Line type of predicted data

- shape_yhat
Symbol for predicted data

- color_imp
A character vector with two elements specifying the symbol and line color of the imputed data

- size_imp
Dot size of imputed data

- ncol
Number of columns in plot

- xlab
The label of the x-axis

- ylab
The label of the y-axis

- xlim
Vector of length 2 with range of x-axis

- ylim
Vector of length 2 with range of y-axis

- show
A logical vector of length 3. Element 1 specifies whether the observed data are plotted, element 2 specifies whether the broken stick are plotted, element 3 specifies whether imputations are plotted. The default is

`c(TRUE, TRUE, FALSE)`

.- n_plot
A integer indicating the number of individual plots. The default is 3, which plots the trajectories of the first three groups. The

`n_plot`

is a safety measure to prevent unintended plots of the entire data set.- scales
Axis scaling, e.g.

`"fixed"`

,`"free"`

, and so on- theme
Plotting theme

- whatknots
Deprecated.

- ...
Extra arguments passed down to

`predict.brokenstick()`

.