# Parameter fitting log

#### 2025-09-02 10:46 CEST

# R environment

Session information and package versions.

- R version 4.3.0 (2023-04-21 ucrt)
- cvasi version: 1.5.0
- Platform: x86_64-w64-mingw32/x64 (64-bit)
- Running under: Windows 11 x64 (build 22631)
- Matrix products: default
- Locale: LC_COLLATE=English_United Kingdom.utf8, LC_CTYPE=English_United Kingdom.utf8, LC_MONETARY=English_United Kingdom.utf8, LC_NUMERIC=C, LC_TIME=English_United Kingdom.utf8
- Attached base packages: stats, graphics, grDevices, utils, datasets, methods, base

Other attached packages
name | version
--- | ---
none | -

Loaded via namespace (not attached)
name | version
--- | ---
digest | 0.6.37
R6 | 2.5.1
fastmap | 1.2.0
xfun | 0.48
cachem | 1.1.0
knitr | 1.48
htmltools | 0.5.8.1
rmarkdown | 2.28
lifecycle | 1.0.4
cli | 3.6.3
sass | 0.4.9
jquerylib | 0.1.4
compiler | 4.3.0
rstudioapi | 0.16.0
tools | 4.3.0
evaluate | 1.0.1
bslib | 0.8.0
yaml | 2.3.10
rlang | 1.1.6
jsonlite | 1.8.9

# Configuration

calibration settings start values (> calibrate) error function (> calibrate) optim method > calibrate parameter boundaries (if used) > calibrate solver settings (method, rtol, atol?) > impossible atm

# Experimental data

trial data by trial id observed > fit/cs weights? > fit/cs exposure > fit/cs

## Fitted scenarios

scenario infos by trial id > fit, attach calisets name
parameters initial state transfers forcings

# Results

The parameter fit was SUCCESSFUL.

### Fitted parameter values

- k_phot_max: 0.43924768080379

### Confidence intervals

Calculated using the Hessian matrix (5 degrees of freedom):

- k_phot_max: [0.435700121589848; 0.442795240017733]

### Additional outputs

- Error function value: 0.0171346 (log_sse)
- Convergence: 0 (successful)
- Message: none

Hessian matrix
| k_phot_max
--- | ---
k_phot_max | 1046.022

Hessian matrix
| k_phot_max
--- | ---
k_phot_max | 1046.022

fit result > fit return value obs vs pred (original, if necessary) > fit ✓ obs vs pred vs residuals (can be transformed) > fit ✓