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資源簡介

python數(shù)據(jù)分析之numpy-pandas-matplotlib-常用代碼示例,是python的源代碼文件,總結(jié)到位,并且包含示例的數(shù)據(jù)文件,不用再找了。注釋比較詳細(xì),適合新手入門,老手回顧。每個源文件命名一看就知道是起什么作用,所以很不錯的資源

資源截圖

代碼片段和文件信息

import?numpy?as?np
import?matplotlib.pyplot?as?plt
import?pandas?as?pd
unrate?=?pd.read_csv(‘UNRATE.csv‘)
unrate[‘DATE‘]?=?pd.to_datetime(unrate[‘DATE‘]format=‘%Y/%m/%d‘)#轉(zhuǎn)化為python中時間格式
unrate1948?=?unrate[0:12]#行切片,隱式
month1948?=?unrate1948[‘DATE‘].dt.month#取月份
fig1ax1?=?plt.subplots(nrows=1ncols=1figsize=(86))
ax1.plot(month1948unrate1948[‘VALUE‘]linestyle=‘‘?‘‘color=‘k‘
?????????linewidth=2?marker=‘*‘markerfacecolor=‘red‘
?????????markersize=10markeredgewidth=0)
ax1.set_xticks(range(113))
ax1.set_xticklabels(unrate1948[‘DATE‘]rotation=90)

#對比
fig2ax2?=?plt.subplots(nrows=1ncols=1figsize=(86))
ax2.plot(unrate1948[‘DATE‘]unrate1948[‘VALUE‘]linestyle=‘‘?‘‘color=‘k‘
?????????linewidth=2?marker=‘*‘markerfacecolor=‘red‘
?????????markersize=10markeredgewidth=0)
plt.xticks(rotation=90)
#linestyle=‘‘?‘‘無線條,相當(dāng)于散點(diǎn)圖
#多圖繪制
fig3?ax3?=?plt.subplots(nrows=2ncols=1figsize=(88))
ax3[0].plot(np.arange(110)10*np.random.random(9)label=‘fig1‘)
ax3[0].set_xlabel(‘x‘)
ax3[0].legend()
ax3[1].plot(np.arange(110)10*np.random.random(9)label=‘fig2‘)
ax3[1].set_xlabel(‘x‘)
ax3[1].legend()
plt.show()
#柱形圖
reviews?=?pd.read_csv(‘fandango_scores.csv‘)
cols1?=?[‘RT_user_norm‘?‘metacritic_user_nom‘?‘IMDB_norm‘
????????????‘Fandango_Ratingvalue‘?‘Fandango_Stars‘]
reviews1?=?reviews[cols1]
fig4ax4?=?plt.subplots(figsize=(86))
ax4.bar(np.arange(16)reviews1.loc[0cols1]0.5)#條形寬度0.5
ax4.set_xticks(range(16))
ax4.set_xticklabels(cols1rotation=45)
plt.show()
#頻次直方圖
a?=?reviews1[‘Fandango_Ratingvalue‘]
fig5ax5?=?plt.subplots(figsize=(86))
ax5.hist(abins=20)#分20組,默認(rèn)10組
plt.show()

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????13207??2018-08-25?18:24??UNRATE.csv
?????文件???????15144??2018-08-25?18:26??fandango_scores.csv
?????文件????????1763??2018-11-09?21:42??matplotlib1繪圖格式控制.py
?????文件?????????548??2018-11-09?20:37??matplotlib多個畫布以及刻度和標(biāo)簽設(shè)置.py
?????文件?????????311??2018-11-08?18:40??matplotlib顯示中文注釋.py
?????文件????????1359??2018-11-05?10:32??numpy1創(chuàng)建數(shù)組.py
?????文件????????2255??2018-11-05?20:51??numpy2數(shù)組基礎(chǔ).py
?????文件?????????598??2018-11-05?19:07??numpy3比較布爾掩碼操作.py
?????文件????????2244??2018-11-05?20:57??numpy4計算及常用函數(shù).py
?????文件?????????156??2018-11-05?21:02??numpy5讀txt.py
?????文件????????3182??2018-11-07?12:36??pandas1Dataframe數(shù)據(jù)創(chuàng)建與選取.py
?????文件????????1863??2018-11-07?11:23??pandas1Series數(shù)據(jù)創(chuàng)建與選取.py
?????文件????????1819??2018-11-07?14:36??pandas2數(shù)值運(yùn)算索引操作.py
?????文件????????2537??2018-11-08?10:54??pandas3索引排序和值排序.py
?????文件????????1045??2018-11-08?12:09??pandas4-1分組與apply.py
?????文件?????????787??2018-11-07?17:10??pandas4統(tǒng)計.py
?????文件????????1025??2018-11-08?10:12??pandas5缺失值處理.py
?????文件????????1066??2018-11-09?14:27??pandas6數(shù)據(jù)透視表.py
?????文件????????1836??2018-11-04?23:00??pandas書自學(xué).py
?????文件???????61194??2018-08-25?18:26??titanic_train.csv
?????文件???????38152??2018-08-25?18:26??world_alcohol.txt

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