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    日期:2025-10-03
    2004年12月24日 ... 函式lsconv是當資料的共變異(covariance)矩陣已知時,用來解決有權重的最小平方 問題,而lsqnonneg找 ......
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    日期:2025-09-28
    For matrix input X, where each row is an observation, and each column is a variable, cov(X) is the covariance matrix. diag(cov(X)) is a vector of variances for  ......
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    日期:2025-10-03
    For matrix input X, where each row is an observation, and each column is a variable, cov(X) is the covariance matrix. diag(cov(X)) is a vector of variances for  ......