Last updated on 2026-02-12 01:52:49 CET.
| Flavor | Version | Tinstall | Tcheck | Ttotal | Status | Flags |
|---|---|---|---|---|---|---|
| r-devel-linux-x86_64-debian-clang | 1.2.5 | OK | ||||
| r-devel-linux-x86_64-debian-gcc | 1.2.5 | 38.25 | 230.46 | 268.71 | OK | |
| r-devel-linux-x86_64-fedora-clang | 1.2.5 | 84.00 | 556.78 | 640.78 | OK | |
| r-devel-linux-x86_64-fedora-gcc | 1.2.5 | 84.00 | 345.02 | 429.02 | ERROR | |
| r-devel-macos-arm64 | 1.2.5 | 12.00 | 93.00 | 105.00 | OK | |
| r-devel-windows-x86_64 | 1.2.5 | 59.00 | 389.00 | 448.00 | OK | |
| r-patched-linux-x86_64 | 1.2.5 | 52.91 | 366.21 | 419.12 | OK | |
| r-release-linux-x86_64 | 1.2.5 | 51.91 | 369.49 | 421.40 | OK | |
| r-release-macos-arm64 | 1.2.5 | OK | ||||
| r-release-macos-x86_64 | 1.2.5 | 32.00 | 360.00 | 392.00 | OK | |
| r-release-windows-x86_64 | 1.2.5 | 60.00 | 377.00 | 437.00 | OK | |
| r-oldrel-macos-arm64 | 1.2.5 | NOTE | ||||
| r-oldrel-macos-x86_64 | 1.2.5 | 32.00 | 346.00 | 378.00 | OK | |
| r-oldrel-windows-x86_64 | 1.2.5 | 71.00 | 509.00 | 580.00 | OK |
Version: 1.2.5
Check: examples
Result: ERROR
Running examples in ‘pomdp-Ex.R’ failed
The error most likely occurred in:
> ### Name: plot_belief_space
> ### Title: Plot a 2D or 3D Projection of the Belief Space
> ### Aliases: plot_belief_space
> ### Keywords: hplot
>
> ### ** Examples
>
> # two-state POMDP
> data("Tiger")
> sol <- solve_POMDP(Tiger)
>
> plot_belief_space(sol)
> plot_belief_space(sol, oneD = FALSE)
> plot_belief_space(sol, n = 10)
> plot_belief_space(sol, n = 100, sample = "random")
>
> # plot the belief points used by the grid-based solver
> plot_belief_space(sol, sample = sol $solution$belief_points_solver)
>
> # plot different measures
> plot_belief_space(sol, what = "pg_node")
> plot_belief_space(sol, what = "reward")
>
> # three-state POMDP
> # Note: If the plotting region is too small then the legend might run into the plot
> data("Three_doors")
> sol <- solve_POMDP(Three_doors)
> sol
POMDP, list - 3-Door Tiger Problem
Discount factor: 0.75
Horizon: Inf epochs
Size: 3 states / 4 actions / 3 obs.
Start: uniform
Solved:
Method: ‘grid’
Solution converged: TRUE
# of alpha vectors: 5
Total expected reward: 5.068327
List components: ‘name’, ‘discount’, ‘horizon’, ‘states’, ‘actions’,
‘observations’, ‘transition_prob’, ‘observation_prob’, ‘reward’,
‘start’, ‘info’, ‘solution’
>
> # plotting needs the suggested package Ternary
> if ("Ternary" %in% installed.packages()) {
+ plot_belief_space(sol)
+ plot_belief_space(sol, n = 10000)
+ plot_belief_space(sol, what = "reward", sample = "random", n = 1000)
+ plot_belief_space(sol, what = "pg_node", n = 10000)
+
+ # holding tiger-left constant at .5 follows this line in the ternary plot
+ Ternary::TernaryLines(list(c(.5, 0, .5), c(.5, .5, 0)), col = "black", lty = 2)
+ # we can plot the projection for this line
+ plot_belief_space(sol, what = "pg_node", n = 1000, projection = c("tiger-left" = .5))
+
+ # plot the belief points used by the grid-based solver
+ plot_belief_space(sol, sample = sol$solution$belief_points_solver, what = "pg_node")
+
+ # plot the belief points obtained using simulated trajectories with an epsilon-greedy policy.
+ # Note that we only use n = 50 to save time.
+ plot_belief_space(sol,
+ sample = simulate_POMDP(sol, n = 50, horizon = 100,
+ epsilon = 0.1, return_beliefs = TRUE)$belief_states)
+ }
Error in check_installed("Ternary") :
Calls: plot_belief_space -> sample_belief_space -> check_installed
Execution halted
Flavor: r-devel-linux-x86_64-fedora-gcc
Version: 1.2.5
Check: installed package size
Result: NOTE
installed size is 5.3Mb
sub-directories of 1Mb or more:
libs 3.6Mb
Flavor: r-oldrel-macos-arm64