usecase.md

# Usecase scripts

In this document, you can link to the example scripts for various demands. For the beginners, it is highly recommended to read the [practical guide](inst/doc/practical_guide.md) carefully first. You can find basic scripts and the configuration for different machines there.

1. **Retrieve data (use `Start()` only)**
   1. [Interpolation in Start()](inst/doc/usecase/ex1_1_tranform.R)  
      Do the interpolation within Start(), and compare with Load() result. When the Start() parameter `transform_extra_cells = 2`, the two results will be the same.
   2. [Use s2dverification map plotting functions for exp and obs data](inst/doc/usecase/ex1_2_plotmap.R)  
      Use s2dverification::PlotEquiMap, PlotStereoMap, PlotLayout to visualize load-in data, and use experimental data attributes to load in associated observational data.  

2. **Execute computation (use `Compute()`)**
   1. [Function working on time dimension](inst/doc/usecase/ex2_1_timedim.R)
   2. [Function using attributes of the data](inst/doc/usecase/ex2_2_attr.R)  
      Using attributes is only available in startR_v0.1.3 or above.
   3. [Use function CDORemap for interpolation](inst/doc/usecase/ex2_3_cdo.R)  
      Using parameter `CDO_module` is only available in startR_v0.1.3 or above. Interpolate data by using `s2dverification::CDORemap` in the workflow. 
   4. [Use two functions in workflow](inst/doc/usecase/ex2_4_two_func.R)
   5. [Using experimental and (date-corresponding) observational data](inst/doc/usecase/ex2_5_exp_and_obs.R)
   6. [Use external parameters in atomic function](inst/doc/usecase/ex2_6_ext_param_func.R)
   7. [Seasonal forecast verification on cca](inst/doc/usecase/ex2_7_seasonal_forecast_verification.R)
   8. [Use CSTools Calibration function](inst/doc/usecase/ex2_8_calibration.R)