Table 1.
Methods available in PreP+07 vs PreP 2003 version
| PreP Methods | PreP 03 | PreP+ 07 |
| Background correction | Y | Y |
| Logratio conversion | Y | Y |
| Block division | Y | Y |
| Filtering | N | Y |
| Double Scan | Y | Improved |
| Lowess per block | Y | Y |
| Supervised Lowess | N | Y |
| Scaling – Standard Deviation/Median Absolute Deviation – Intraslide/InterSlide | Y | Improved |
| Replication | Y | Improved |
| Dye Swap | Y | Y |
| Stat Test – Local/Global – Ztest Ttest | N | Y |
| Graphics | ||
| Threshold lines | Y | Y |
| Slide View | Y | Y |
| Coherent Slide View | Y | Y |
| Quality Slide View | Y | Y |
| MA Graph | Y | Y |
| MA Quality Graph | N | Y |
| MA per blocks | N | Y |
| RG Graph | Y | Y |
| Box graph | Y | Y |
| Normality graphs (QQ/PN/PP) | N | Y |
| Density Graph | Y | Y |
| Density Graph per Block | Y | Y |
| DoubleScan graphs | Y | Y |
| Logratio histogram | Y | Y |
| Replication graphs | Y | Y |
| Others | ||
| Zoom | Y | Y |
| Online help | N | Y |
| Open/Save project | Y | Y |
| Save expression Matrix | Y | Improved |
| Automatic load of genepix, imagene files | N | Y |
| Loading formats automatically | N | Y |
| Delete last step | Y | Y |
| Delete all steps except last | N | Y |
| Toolbar redesigned, related buttons consecutive | N | Y |
| Slide Alias when you load it | N | Y |
| Apply the same structure with a checkbox button to all loaded slides | N | Y |
| Tooltip activation button | N | Y |