求翻译：在样本期间，市场平均超额收益率Y的样本值和拟合值还算接近，但拟合程度仍不够好。造成该种情况的原因可能是数据采集方面的误差及我们自身的操作误差等。据Eviews显示，在样本期间外，2012年和2013年的市场平均超额收益率 分别约为0.187和0.245。是什么意思？

During the sample period, the sample value and the fitted values ​​of the market average excess yield y fairly close, but the fit is still not good enough. Cause this kind of situation may be due to the error of the data acquisition and our own operator error. According to the the eviews show, durin

In the sample period, the market average return over the Y sample values and value can be counted as a fitting close to, but still be close enough. This could be the reason for such a situation is the error in data acquisition and our own operating errors, and so on. According to Eviews show, in the

In sample period, the market exceeds the quota equally the returns ratio Y sample value and the fitting value also calculates close, but the fitting degree insufficiently was still good.造成该种情况的原因可能是数据采集方面的误差及我们自身的操作误差等。According to Eviews demonstrated that, outside sample period, in 2012 and 2013 ma

During the sample period, average market adjusted return y samples and fitting value is close to, but the fit is still not good enough. The situation may be caused by errors in the data acquisition and our own operational errors, and so on. According to Eviews shows that during the sample period, a

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