佢每個 data science / econ 之類 post都會嚟 show off 但每次都俾人捉到錯,同膠登嗰隻烏大龜有啲似嘅,但我覺得佢似孔乙己
sdvsvsdav2022-07-13 00:41:52
果然係顛狗
水原千鶴2022-07-13 00:42:29
自己寫到一舊舊又話人錯,錯嘅永遠唔喺你度
呢個自我中心就係你可能有亞氏保加嘅證據之一
水原千鶴2022-07-13 00:44:06
嗰頭講完 undergrad 冇讀數同 stat,呢頭就驚俾人知底牌急急澄清
sdvsvsdav2022-07-13 00:44:47
係你比人捉到錯
成隻顛狗咁吠
dcf 個次已經柒到仆街
linear regression 唔駛用gradient descent又柒多次
水原千鶴2022-07-13 00:45:23
concept 唔清大概係你, inverse 同 solve linear system of equations 都未分清,基本上 undergrad 有讀 linear algebra 都唔會犯嘅錯
sdvsvsdav2022-07-13 00:46:22
屌
你幅圖入面
我清楚咁寫secondary school
盲既都識上連登
水原千鶴2022-07-13 00:46:47
又開始迴避問題嚟同埋用精神勝利法,連登學術保變低汁都係多得你呢啲識少少扮代表嘅人周圍踩場
水原千鶴2022-07-13 00:48:08
and in my undergraduate study. (...no maths and stat...)
and 字都俾你詭辯到,果然唔係理科出身,一日到黑淨係識詭辯
sdvsvsdav2022-07-13 00:48:14
其實你理解錯我講咩
同有閱讀困難既人好難溝通
水原千鶴2022-07-13 00:48:50
run 緊 model 嘅時候最得閒嚟笑呢啲傻佬
sdvsvsdav2022-07-13 00:49:09
有閱讀困難都讀到大學先好野
sdvsvsdav2022-07-13 00:51:43
你出得post預左有人對你寫既野有疑問
我見你誤人子弟先岀聲
水原千鶴2022-07-13 00:54:33
冇人理解錯,係你講錯。順帶一提,inv(A)*b 俾返 inv(A) 你只有當 b 係 standard basis vector (繼而整成一個 identity matrix),一般 b 嘅情況,solve system 都唔係計 inv(A) 呢一個 matrix。明未? 你覆得多,唔代表就係你啱
水原千鶴2022-07-13 00:55:24
冇可能呀嘛,所以咪係你有表達困難,小學生 and 字都識點解啦
水原千鶴2022-07-13 00:58:04
又兜去有疑問其實你係入人地 post 講離題嘢,你講誤人子弟其實反而係你 concept 錯誤但堅持己見
sdvsvsdav2022-07-13 01:06:52
例如當linear model 入面既error係t distributed
maximum likelihood estimator of coefficients就冇closed form solution
咁就要用gradient descent 或其他method 去搵numerical solution