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How to speed time while running mixtu... |
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Ali posted on Wednesday, February 12, 2014 - 2:41 pm
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Hi, I am running A mixture IRT model with 20 replication to try fit if the model fits the number of classes from 1 to 3 well. I installed to MplusAutomation to run, so it can run automatically. But it took a lot of time to run around 1 day.Also, if i increase start value from 500 125 to 1000 250, it will take more time. My laptop system is 32 bit. Is there is any way to speed up? |
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When you do monte carlo simulations with mixtures, note that when you don't use our recommended Starts=0 the latent classes may change order over the replications making the summary results meaningless. You should get a 64-bit machine with at least 8 processors if you do this sort of work. |
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Ali posted on Wednesday, February 12, 2014 - 8:12 pm
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Thank you! But I didn't run monte carlo simulations with mixture. I just simulated the data from other program with 20 times, since I am no still familiar with monte carlo. So, I just simply run the 20 set data to fit the number of class in a mixture Rasch model to check which model fits well. So, does it still need a 64-bit machine with at least 8 processor? |
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Probably not. |
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