我们先要了解，pandas是基于Numpy构建的，pandas中很多的用法和numpy一致。pandas中又有series和DataFrame，Series是DataFrame的基础。pandas的主要功能：具备对其功能的数据结构DataFrame，Series集成时间序列功能提供丰富的数学运算和操作灵活处理缺失数据，...

一、jupyternotebook两种安装和启动的方式：第一种方式：命令行安装：pipinstalljupyter启动：cmd中输入jupyternotebook缺点：必须手动去安装数据分析包（比如numpy,pandas...）第二种方式：下载anaconda软件优点：包含了数据分析的基础包大概200个左右的科学运算...

importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.SQLException;importjava.sql.DatabaseMetaData;importjava.sql.ResultSet;publicclassDatabaseM...

importosimportnumpyasnpimportpandasaspdfromdatetimeimportdatetimeimportmatplotlibimportmatplotlib.pyplotaspltimportseabornassnssns.set_style('white')%matplotlib...

 importpandasaspdpd.DataFrame({'Yes':[50,21],'No':[131,2]})pd.DataFrame({'Bob':['Ilikedit.','Itwasawful.'],'Sue':['Prettygood.','Bland.']})pd.DataFrame({'B...

dfS=read.csv("F:\kaggleDataSet\spacex-missions\database.csv")library(dplyr)library(tidyr)library(data.table)library(sqldf)library(highcharter)library(ggrepel)li...

#Weimportlibrariesforlinearalgebra,graphs,andevaluationofresultsimportnumpyasnpimportmatplotlib.pyplotaspltfromsklearn.linear_modelimportLinearRegressionfromskl...

importpandasaspdimportnumpyasnpimportmatplotlib.pyplotaspltimportmatplotlib.imageasmpimgimportseabornassns%matplotlibinlinenp.random.seed(2)fromsklearn.model_se...

df=pd.read_csv("F:\kaggleDataSet\chennai-water\chennai_reservoir_levels.csv")df["Date"]=pd.to_datetime(df["Date"],format='%d-%m-%Y')df.head()importdatetimedefsc...

importnumpyasnp#linearalgebraimportpandasaspd#dataprocessing,CSVfileI/O(e.g.pd.read_csv)#plotlyimportchart_studio.plotlyaspyfromplotly.offlineimportinit_noteboo...

importnumpyasnpimportpandasaspdimportosimportmatplotlib.pyplotasplimportseabornassnsimportwarningswarnings.filterwarnings('ignore')data=pd.read_csv('F:\kaggleDa...

#ThisPython3environmentcomeswithmanyhelpfulanalyticslibrariesinstalled#Itisdefinedbythekaggle/pythondockerimage:https://github.com/kaggle/docker-python#Forexamp...

fromalbumentationsimport*importtimeIMG_SIZE=(224,224)'''Usecasefromhttps://www.kaggle.com/alexanderliao/image-augmentation-demo-with-albumentation/'''defalbaugm...

fromkerasimportlayersfromkeras.modelsimportModelimportkeras.backendasKK.clear_session()densenet=DenseNet121(weights=None,include_top=False,input_shape=(None,Non...

dpi=80#inchpath_jpg=f"F:\kaggleDataSet\diabeticRetinopathy\resized_train_cropped\18017_left.jpeg"#toomanyvessels?path_png=f"F:\kaggleDataSet\diabeticRetinopathy...