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.
J'ai un cadre de données comme suit: Name string value
BB a8 0.6932831
DD a8 -0.3358695
BB a11 0.5912728
AA a11 1.0441365
DD a45 -0.2892612
CC a45 0.5598616
...