`PwcOSInt(x, h01, h02, h12, pw01, pw02, pw12)`

## Arguments

- x
(`numeric`

)

variable of integration.

- h01
(`numeric vector`

)

constant transition hazards for 0 to 1 transition.

- h02
(`numeric vector`

)

constant transition hazards for 0 to 2 transition.

- h12
(`numeric vector`

)

constant transition hazards for 1 to 2 transition.

- pw01
(`numeric vector`

)

time intervals for the piecewise constant hazards `h01`

.

- pw02
(`numeric vector`

)

time intervals for the piecewise constant hazards `h02`

.

- pw12
(`numeric vector`

)

time intervals for the piecewise constant hazards `h12`

.

## Value

Numeric results of the integrand used to calculate
the OS survival function for piecewise constant transition hazards, see `PWCsurvOS`

.

## Examples

```
PwcOSInt(1:5, c(0.3, 0.5), c(0.5, 0.8), c(0.7, 1), c(0, 4), c(0, 8), c(0, 3))
#> [1] 0.2714512 0.2456192 0.2222455 0.4524187 0.4524187
```