In this video we'll be talking about data analysis and the scenario in which we'll be playing the data analyst or data scientist.

在這個(gè)視頻里，我們將討論數(shù)據(jù)分析和用腳本語(yǔ)言分析數(shù)據(jù)或成為數(shù)據(jù)科學(xué)家

Data analysis and, in essence, data science, helps us unlock the information and insights from raw data to answer our questions.數(shù)據(jù)分心，數(shù)據(jù)科學(xué)，本質(zhì)上幫助我們從原始數(shù)據(jù)里分析出來(lái)信息和見(jiàn)解來(lái)解決問(wèn)題

比如說(shuō)賣(mài)車(chē)，如何定一個(gè)合理的價(jià)格

dataset數(shù)據(jù)集

A Python library is a collection of functions and

methods that allow you to perform lots of actions without writing any code.

python庫(kù)是一個(gè)函數(shù)和方法的集，允許你大量的操作但不用寫(xiě)大量代碼

Each row is one datapoint.每一行都是一個(gè)數(shù)據(jù)點(diǎn)

the properties are separated from each other by commas,屬性彼此間以逗號(hào)分離

The first method called simple feature scaling just divides each value by the maximum value for that feature.第一種方法簡(jiǎn)單縮放

The second method called min-max takes each value X_old subtract it from the minimum value of that feature,then divides by the range of that feature.

The third method is called z-score or standard score.

categorical variables in your dataset.數(shù)據(jù)集中的分類(lèi)變量

Correlation關(guān)聯(lián)

標(biāo)簽：英語(yǔ)單詞,python,feature,value,called,each,data,method

來(lái)源： https://www.cnblogs.com/zhangyulove/p/11558939.html

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