Bæta við tvö dataframes panda
Kóða dæmi
ganga á dálk panda
# df1 as main df and use the feild from df2 and map it into df1
df1.merge(df2,on='columnName',how='left')sameina tvær dataframe í panda
# Stack the DataFrames on top of each other
vertical_stack = pd.concat([survey_sub, survey_sub_last10], axis=0)
# Place the DataFrames side by side
horizontal_stack = pd.concat([survey_sub, survey_sub_last10], axis=1)
hvernig á að sameinast tvær dataframes
df_merge_col = pd.merge(df_row, df3, on='id')
df_merge_colhvernig á að sameinast tvær panda dataframes á dálk
import pandas as pd
T1 = pd.merge(T1, T2, on=T1.index, how='outer')Tengjast Síður
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