one panel plot and iwres validation

[codecov[bot]]

Codecov Report

Patch coverage: 92.33% and project coverage change: -0.03 :warning:

Comparison is base (7d13514) 90.90% compared to head (b88989d) 90.87%.

:exclamation: Current head b88989d differs from pull request most recent head ced2422. Consider uploading reports for the commit ced2422 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #120 +/- ## ========================================== - Coverage 90.90% 90.87% -0.03% ========================================== Files 47 49 +2 Lines 5969 6104 +135 ========================================== + Hits 5426 5547 +121 - Misses 543 557 +14 ``` | [Impacted Files](https://codecov.io/gh/nlmixr2/nonmem2rx/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2) | Coverage Δ | | |---|---|---| | [R/zzz.R](https://codecov.io/gh/nlmixr2/nonmem2rx/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui96enouUg==) | `10.00% <0.00%> (-1.12%)` | :arrow_down: | | [R/asNonmem2rx.R](https://codecov.io/gh/nlmixr2/nonmem2rx/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui9hc05vbm1lbTJyeC5S) | `85.96% <85.96%> (ø)` | | | [R/plot.R](https://codecov.io/gh/nlmixr2/nonmem2rx/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui9wbG90LlI=) | `93.58% <87.50%> (-4.90%)` | :arrow_down: | | [R/readInNonmemInput.R](https://codecov.io/gh/nlmixr2/nonmem2rx/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui9yZWFkSW5Ob25tZW1JbnB1dC5S) | `83.24% <88.88%> (-0.94%)` | :arrow_down: | | [R/validate.R](https://codecov.io/gh/nlmixr2/nonmem2rx/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui92YWxpZGF0ZS5S) | `92.92% <94.61%> (+5.83%)` | :arrow_up: | | [R/nonmem2rx.R](https://codecov.io/gh/nlmixr2/nonmem2rx/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui9ub25tZW0ycnguUg==) | `86.04% <100.00%> (-0.85%)` | :arrow_down: | | [R/readCov.R](https://codecov.io/gh/nlmixr2/nonmem2rx/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui9yZWFkQ292LlI=) | `100.00% <100.00%> (ø)` | | | [R/rxUiGet.R](https://codecov.io/gh/nlmixr2/nonmem2rx/pull/120?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2#diff-Ui9yeFVpR2V0LlI=) | `100.00% <100.00%> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nlmixr2)

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