A data frame is a tabular data structure. Usually, it contains data where rows are observations and columns are variables of various types. While "data frame" or "dataframe" is the term used for this concept in several languages (R, Apache Spark, deedle, Maple, the pandas library in Python and the DataFrames library in Julia), "table" is the term used in MATLAB and SQL.
Je souhaite ajouter une ou plusieurs valeurs au dataframe existant.
Mon dataframe ressemble à: for x,n in zip(u,grps):
# Filter Dataframe based on X and create new Dataframe
df ...
J'ai un dataframe appelé df qui ressemble à ceci (sauf que le nombre de colonnes 'mat_deliv' monte à mat_deliv_8, il y a plusieurs centaines de clients et un ce ...
J'ai un dataframe similaire à df = pd.DataFrame({'A': [1, np.nan,2,3, np.nan,4], 'B': [np.nan, 1,np.nan,2, 3, np.nan]})
df
A B
0 1.0 NaN
1 NaN 1.0
2 2.0 NaN
3 3.0 2.0
4 ...
