已知一组数据x,大概服从拉普拉斯分布,如何才能估计出对应的参数呢?。
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我想用f = fittype('a*exp(-(abs(x-b)/c))'); [cfun,gof] = fit(x,y,f);
但是我不知道y呀,我只有一堆数据(一幅图像的DCT系数),应该怎么做呢,拜托老师了,还有就是matlab中为什么没有Laplacefit函数呢,各位有能否分享一下呢
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