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Download pdf guide - VSN International

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15 Examples 25315.5 Balanced repeated measures - HeightThe data for this example is taken from the GENSTAT manual. It consists ofa total of 5 measurements of height (cm) taken on 14 plants. The 14 plantswere either diseased or healthy and were arranged in a glasshouse in a completelyrandom design. The heights were measured 1, 3, 5, 7 and 10 weeks after theplants were placed in the glasshouse. There were 7 plants in each treatment. Thedata are depicted in Figure 15.3 obtained by qualifier line!Y y1 !G tmt !JOINin the following multivariate ASReml job.This is plant data multivariateY=y1 X=Traits G=tmtY−axis: 21.0000 130.5000 X−axis: 0.5000 5.50001 2Figure 15.3 Trellis plot of the height for each of 14 plantsIn the following we illustrate how various repeated measures analyses can beconducted in ASReml. For these analyses it is convenient to arrange the datain a multivariate form, with 7 fields representing the plant number, treatmentidentification and the 5 heights. The ASReml input file, up to the specificationof the R structure isThis is plant data multivariatetmt !A # Diseased Healthyplant 14y1 y3 y5 y7 y10grass.asd !skip 1 !ASUV

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