Hello everyone, this is the first time I post in this forum. I'm a new minitab user, I hope you can help me: I was doing a multiple way ANOVA with minitab "General Linear Model" tool. I have three factors, one of which (Peff) is random and a continuos variable. Minitab gives me the following error message: GFMain 'n' 'Va' 'Peff'; Responses 'Fx'; FMeans C4000 *ERROR* No data in column. What I did wrong? If you need more details you'll just say. (my english is not very good, so sorry). [This is what my session window displays: General Linear Model: Fx versus n; Va; Peff Factor Type Levels Values n fixed 3 800; 1200; 1600 Va fixed 3 500; 1500; 3000 Peff random 80 0,03060; 0,03120; 0,03400; 0,03800; 0,04113; 0,04620; 0,04957; 0,05120; 0,05183; 0,05253; 0,05480; 0,05690; 0,05760; 0,06330; 0,06770; 0,06820; 0,06870; 0,07073; 0,07123; 0,07260; 0,07480; 0,08520; 0,08730; 0,08982; 0,08990; 0,09250; 0,09360; 0,10140; 0,10562; 0,10760; 0,11150; 0,11637; 0,11820; 0,12842; 0,13070; 0,13310; 0,13670; 0,13920; 0,13940; 0,13944; 0,14330; 0,14560; 0,14670; 0,14913; 0,14926; 0,15160; 0,15900; 0,16040; 0,16146; 0,16520; 0,17360; 0,18063; 0,18490; 0,26560; 0,26984; 0,27650; 0,27680; 0,27960; 0,28210; 0,28640; 0,28800; 0,29480; 0,29570; 0,30311; 0,30400; 0,30680; 0,30934; 0,31240; 0,31520; 0,32170; 0,32400; 0,32720; 0,33106; 0,33240; 0,33960; 0,34270; 0,34700; 0,34820; 0,34947; 0,35170 Analysis of Variance for Fx, using Adjusted SS for Tests Reduced Source Model DF DF Seq SS n 2 2 146478,9 Va 2 2 38387,0 Peff 79 74+ 62496,0 n*Va 4 0+ 0,0 Va*Peff 158 0+ 0,0 n*Peff 158 0+ 0,0 Error -323 2 18,8 Total 80 80 247380,8 + Rank deficiency due to empty cells, unbalanced nesting, collinearity, or an undeclared covariate. No storage of results or further analysis will be done. S = 3,06757 R-Sq = 99,99% R-Sq(adj) = 99,70%] When a dialog box contains a field where you can enter a variable from your worksheet, you can choose the variable from the variables list on the left side of the dialog. Under certain circumstances, the variables list might not display variables, even though your worksheet contains variables.  Dialog box with an empty variable list Dialog box with a variable in the variable list The following conditions can cause the variables list to not display your variables. Your insertion point is not in a field that accepts variables If your insertion point is not in any field, or is in a field that does not accept variables, the variables list does not display your variables. Your insertion point is in a field that does not accept the data type of the variables column If the variable column is not the correct data type for the field, the variables list does not display your variables. For example, if your insertion point is in a field that accepts only numeric variables, but the variable column is of the text data type, then the variables list does not display your variables.
The variables column is hidden in the worksheet If a variables column is hidden in the worksheet, then the variables list might not display your variable.
Tip To set the default for whether Minitab displays all of the columns in dialog boxes or only unhidden columns, choose and select the setting. In order to create a control chart, you must have at least two consecutive nonmissing points for Minitab to calculate the standard deviation and draw the control chart. When you try to create a control chart based on a subset of data, you may inadvertently exclude all the data. For example, you may set the subset condition to exclude values > 50, but all values are greater than 50. Or, you may set the subset condition to include values from "Supplier A", but the worksheet does not contain any data from Supplier A. |
