In eCerto: Statistical Tests for the Production of Reference Materials

Editing options

F and U columns in Tab.C3 can be added, removed or renamed using the drop down menu next to the table. To add a new U column select option <new U>, to rename an existing column, modify the column in the text box. To delete a column, simply delete it's column name. All modifications take place only after the user confirms by pushing the respective button within the drop down menu.

Note! eCerto will respect HTML formatting, i.e. if you want to use subscript in your column name you can use u<sub>hom</sub> as input to create a column with displayed name $u_{hom}$.

Default values are 1 and 0 for F and U columns respectively, as these are neutral with respect to the result. In F and U columns all values can be edited manually by double clicking the respective cell, entering a new value and clicking outside the cell to confirm the modification.

More conveniently, U columns can also be filled automatically with data from the homogeneity and stability modules of eCerto.

Note! Manual modifications will be overwritten by any automatic transfer into the same column.

The only other column which can be manually edited is k, the expansion factor for u_com. All other columns can not be modified by the user and will only show a grey background upon double click. This is on purpose to ensure a robust workflow and comprehensible statistical results. It requires a careful preparation of input data files, e.g. providing reasonable and consistent analyte names and units.