數(shù)值型函數(shù) abs(x) 絕對值 abs(-9)=9comb(n,k) 從n中取k個的組合 comb(10,2)=45exp(x) 指數(shù) exp(0)=1fill...
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數(shù)值型函數(shù) abs(x) 絕對值 abs(-9)=9comb(n,k) 從n中取k個的組合 comb(10,2)=45exp(x) 指數(shù) exp(0)=1fill...
ggplot2 advanced @(R)[graph] Axes control x axis as Date axis as numaric XY axes look S...