Messages and Special Cases

Reading time
LocationCause and Solution
«The factors must be quantitative»"Response Area" and "Fill" accept only numeric values. Use XN for a qualitative factor.
«There are no interactions on this table.»Table L12 or L20: These screening designs do not include interactions. Choose a table with a power of 2.
An expected table does not appear in the possible layoutsIt doesn't have enough columns for your factors and interactions. Remove an interaction, or use a larger table.
No plans proposed in the Response AreaMore than 6 factors. Switch to Smart DOE, Sweep, or Fill.
«Enter at least two quantitative factors»Filling plan: You need at least two.
«The fill plan is limited to 20 factors»Reducing the number of factors—since the number of trials is capped at 100, no design would be calculable.
«The calculation criteria have changed since this plan was created. Please run the calculation again.»A setting has changed since the last calculation. The grid transfer is blocked until the plan is recalculated.
Maximum correlation beyond the targetToo few trials for the number of factors. Increase the number of trials, or lower the target.
«The plan could not be saved»Backup failed: The plan will be lost when you leave this page. The «Retry» button will restart the backup.
«You need at least two continuous factors to propose plans.»Smart DOE: Set at least two factors to the "Continuous" type.
«No certified plan for this combination of factors»The catalog does not cover this template. The border remains usable via the gray dots—unless a factor is categorical.
«Custom generation does not yet support categorical factors.»Select a certified plan from the catalog that covers mixed configurations.
«The central points assume an intermediate level for each factor.»A categorical factor does not have one. Step-by-step mode is disabled.
«The «X» factor does not have a defined value for its level …»A level is missing from the factor table. The design cannot be expanded into actual values.
Red cell in the D-Optimal inclusion tableThe value entered is not one of the options listed in the candidate tests.