使用单等于号来向变量赋值，而不是像在前一个条件中那样使用双等于号 (==) 来比较值。

Use the single equal sign to assign a value to a variable, unlike the double equal sign (==), as in the previous condition, which compare the values.

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在双反应变量重复测量资料模型构建过程中，使用SAS的MIXED过程，将重复测量数据间的相关性分为变量之间的相关与重复测量个体值之间的相关两部分。

In modelling the bivariate repeated measurement data, using the PROC MIXED of SAS, the correlation between data could be cut into two parts: between variables and between multiple measurements.

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实验结果表明，该方法较双变量收缩函数去噪方法在PSNR值上又有了提高。

Compared with the image denoising method using bivariate shrinkage function, the experiment result shows the PSNR is enhanced using this method.

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