Data structure

Internally, all data is stored in a MATLAB structure array, named WR. This data structure is written in the .mat file when saving. The same data can be exported to XML.

The structure contains the following data:

Data read from the raw data file (*.csv) produced by the microplate reader: mainly time-series measurements of absorbance, fluorescence, and luminescence for each well, as well as technical information on the experimental conditions
User data: description of the experiment, author, etc.
The analysis and processing carried out on the data.

That is, you can analyze your data, store them in a file, and then reload the latter and find the modifications you made.

In case you want to use the data in MATLAB (e.g., plot some specific graphs), we show below the WR structure used. We use the following MATLAB conventions:

a dot is a hierarchical relation. In the example below, experiment_info is a child field of the WR structure.
```
   WR.experiment_info
```
optional fields are surrounded by parentheses
```
   WR.experiment_info.(author)
```
Arrays are surrounded by square brackets.
```
   WR.experiment_info.[programs]
```
To access one specific index in MATLAB (say the second), you can use braces or parentheses depending on the data stored within. For example:
```
   WR.experiment_info.programs{2}
```
#name# means that these are fields whose names are listed somewhere else.

`WR` struct

WR
  .experiment_info
                  .author
                  .notebook_page
                  .description
                  .initial_time
                  .[programs]
                             .name
                             .([headers])
                                         .name
                                         .value
                             .[measures]
                             .type
  .global_parameters
                    .plasmid_copies
                    .RFU_default_gamma
                    .RLU_default_gamma
                    .protein_default_gamma
                    .absorbance_detection_limit
  .[wells]
          .name
          .sample_type
          .[measure_type]                                  // may be 'Absorbance', 'RFU' or 'RLU'
                         .measure_list                     // list of #measures# names
                         .#measures#                       // name of the measure
                                    .is_background
                                    .[time]
                                    .[original_signal]
                                    .([corrected_signal])  //only if not a background measure
                                    .[valid_indices]
                                    .background_correction //only if not a background measure
                                                          .reference_well
                                                          .time_shift
                                                          .growth_difference
                                    .fit
                                        .spline_type       //always 'pp2sp'
                                        .parameter

Data structure

WR struct

`WR` struct