[大數據分析]深入淺出地教你用分析軟件R-Studio

應該話, for ML 呢啲IT field 既, Python 必選. R replace 唔到.

Lm

down做csv
read.csv(file_name)

話說可以download "swirl" 呢個package 去學

超級新手lm

想整table of result 都唔識用R markdown

我想問有左 sample mean estimate, SD, 同 sample size (n) 點樣倒後整返個dummy dataset出黎會有返呢D特性

I think you need to specify a probability distribution and then R can generate random samples from the distribution.

how 🥺 please shed some insights, no need to write full codes.

Let n, mu_0, s_0 be your sample size, sample mean and sample SD respectively.
Generate first n samples from, say, Normal(0, 1) distribution, call them {x_i}. Let mu and s be the sample mean and sample SD of {x_i} respectively. Then the sample mean and SD of {(x_i - mu) / s} would be 0 and 1 respectively. Finally let y_i = sqrt(s_0) (x_i - mu) / s + mu_0. Such {y_i} would have sample mean mu_0 and sample SD s_0.

typo, it should be: y_i = s_0 (x_i - mu) / s + mu_0
as s_0 is SD

都想知，見到好多paper都話用R。
因為個lab冇人識coding，我就只識java javascript,目前都係用Java javascript implement d 有用的，但感覺好辛苦。

Thx, let me try try
祝你好人有好報

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點解

可唔可以互換tg，我好需要你幫我，@bb88haha

好多唔識想請教樓主
tg: hellomyfrienddd

想問呢個同matlab又有冇好大分別

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LM