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Anonymous posted on Tuesday, September 13, 2005  5:16 pm



I analyze the dataset. I got this kind of message. How can figure out?  Mplus VERSION 3.12 INPUT INSTRUCTIONS DATA: FILE IS data.txt; VARIABLE: NAMES ARE Fid Sid Risk MAlc EithAlc age1age11 Dx1Dx11; USEVARIABLE ARE Fid Sid Risk MAlc EithAlc age1age11 Dx1Dx11; CATEGORICAL = Dx1Dx11; CLUSTER = Fid; Between = Risk; Within = MAlc EithAlc age1age11; MISSING = *; ANALYSIS: TYPE = TWOLEVEL MISSING; INTEGRATION = 7; MODEL: %WITHIN% iw sw  Dx1@0 Dx2@1 Dx3@2 Dx4@3 Dx5@4 Dx6@5 Dx7@6 Dx8@7 Dx9@8 Dx10@9 Dx11@10; iw sw on MAlc EithAlc age1age11; %BETWEEN% ib sb  Dx1@0 Dx2@1 Dx3@2 Dx4@3 Dx5@4 Dx6@5 Dx7@6 Dx8@7 Dx9@8 Dx10@9 Dx11@10; ib sb on Risk; OUTPUT: TECH1 TECH8; *** WARNING Input line exceeded 80 characters. Some input may be truncated. iw sw  Dx1@0 Dx2@1 Dx3@2 Dx4@3 Dx5@4 Dx6@5 Dx7@6 Dx8@7 Dx9@8 Dx10@9 *** WARNING Input line exceeded 80 characters. Some input may be truncated. ib sb  Dx1@0 Dx2@1 Dx3@2 Dx4@3 Dx5@4 Dx6@5 Dx7@6 Dx8@7 Dx9@8 Dx10@9 *** ERROR The number of observations is 0. Check your data and format statement. Data file: data.txt *** ERROR Invalid symbol in data file: "1101X2" at record #: 1, field #: 2 


1101X2 must appear in your data set on record 1 field 2. Data must be numeric in Mplus. So this would be an invalid data entry. Note that the input file length should not exceed 80 columns. These are support questions. If you have further problems of this kind, please send your input, data, output, and license number to support@statmodel.com. 


Hi, I am trying to run analyses using a SAS dataset I imported to MPLUS. I am indicating a file path to this valid dataset, but every time I try to run MPLUS I receive an error message telling me that my dataset contains 0 observations. I have tried reexporting the SAS dataset into MPLUS, but I still get the same error message. I can use this exact same dataset in other sets of analyses (i.e. I receive no error message using the same data statement in logistic regression programs), but for some reason this regression will not run. Is this a support question? Thanks for your time, Michelle 


I can speculate that perhaps after listwise deletion on the set of analysis variables, there are no observations left. If that is not the case, please send your input, data, output, and license number to support@statmodel.com. 


Hi, I am trying to run a twolevel model with Subjective Wellbeing as the dependent variable on both the country level and individual level. However, I got the following message: Withinlevel variables cannot be used on the between level Do I need to create a new variable with mean levels of subejective wellbeing in each country to be used as my countrylevel variable? 


If you don't place the variable on the WITHIN list, you can use it on both levels. Please see pages 463464 of the user's guide and Examples 9.1 and 9.2 for further information. 


Dear Linda and Bengt, When I use Mplus to estimate a mediation model using TYPE = complex, I get the following error message: THE MODEL ESTIMATION TERMINATED NORMALLY THE STANDARD ERRORS OF THE MODEL PARAMETER ESTIMATES MAY NOT BE TRUSTWORTHY FOR SOME PARAMETERS DUE TO A NONPOSITIVE DEFINITE FIRSTORDER DERIVATIVE PRODUCT MATRIX. THIS MAY BE DUE TO THE STARTING VALUES BUT MAY ALSO BE AN INDICATION OF MODEL NONIDENTIFICATION. THE CONDITION NUMBER IS 0.358D16. PROBLEM INVOLVING PARAMETER 1. It is not only parameter 1 that is the problem, but also others. I have slightly negative covariances between some variables, I think that is the problem. However, I am not sure how to handle this problem. Would it be okay to fix them at 0? Thank you very much for you help. Kind regards, Kim 


Please send the output and your license number to support@statmodel.com. 


Hi, I am designing a twolevel mediation model and found this *message from the result. "*The chisquare value for MLM, MLMV, MLR, ULSMV, WLSM and WLSMV cannot be used for chisquare difference testing in the regular way. MLM, MLR and WLSM chisquare difference testing is described on the Mplus website. MLMV, WLSMV,and ULSMV difference testing is done using the DIFFTEST option." 1. When does this message appear? Does it imply my current data do not fit the assumed model well? 2. Does it imply that i cannot trust model fit indexes such as chisquare value, RMSEA or CFI? or is it simply saying I cannot do chisquare difference testing? Thank you in advance!! Sincerely, TJ Hwang 


This always appears. It is about difference testing. It has nothing to do with 1 or 2. 


Dear Dr. Muthen, Thank you for your quick answer! have a lovely day 


I have saved a filed from SPSS into a .csv file, however MPLUS is having issues reading. I continue to get the following two error messages: *** ERROR The number of observations is 0. Check your data and format statement. Data file: TESTING.csv *** ERROR Unrecognized symbol in data file: symbol at record #: 1, field #: 50 


Please send the output, data set, and your license number to support@statmodel.com. 

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