# plot.ddhazard

##### Plots for ddhazard Object

Plot of estimated state space variables from a `ddhazard`

fit.

##### Usage

```
# S3 method for ddhazard
plot(x, xlab = "Time", ylab = "Hazard",
type = "cov", plot_type = "l", cov_index, ylim, col = "black",
add = F, do_alter_mfcol = T, level = 0.95, ddhazard_boot, ...)
```

##### Arguments

- x
result of

`ddhazard`

call.- xlab, ylab, ylim, col
arguments to override defaults set in the function.

- type
type of plot. Currently, only

`"cov"`

is available for plot of the state space parameters.- plot_type
the

`type`

argument passed to`plot`

.- cov_index
the index (indices) of the state space parameter(s) to plot.

- add
`FALSE`

if you want to make a new plot.- do_alter_mfcol
`TRUE`

if the function should alter`par(mfcol)`

in case that`cov_index`

has more than one element.- level
level (fraction) for confidence bounds.

- ddhazard_boot
object from a

`ddhazard_boot`

call which confidence bounds will be based on and where bootstrap samples will be printed with a transparent color.- ...
arguments passed to

`plot.default`

or`lines`

depending on the value of`add`

.

##### Details

Creates a plot of state variables or adds state variables to a plot with indices `cov_index`

. Pointwise 1.96 std. confidence intervals are provided with the smoothed co-variance matrices from the fit.

##### Examples

```
# NOT RUN {
library(dynamichazard)
fit <- ddhazard(
Surv(time, status == 2) ~ log(bili), pbc, id = pbc$id, max_T = 3600,
Q_0 = diag(1, 2), Q = diag(1e-4, 2), by = 50,
control = ddhazard_control(method = "GMA"))
plot(fit)
plot(fit, cov_index = 2)
# }
```

*Documentation reproduced from package dynamichazard, version 0.6.5, License: GPL-2*