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Data Manipulation Cookbook
Adding a prefix to column valuesAdding leading zeros to strings of a columnAdding new column using listsAdding padding to a column of stringsBit-wise ORChanging column type to stringConditionally updating values of a DataFrameConverting all object-typed columns to categorical typeConverting column type to dateConverting column type to floatConverting column type to integerConverting K and M to numerical formConverting string categories or labels to numeric valuesEncoding categorical variablesExpanding lists vertically in a DataFrameExpanding strings vertically in a DataFrameExtracting numbers from columnFilling missing value in Index of DataFrameFiltering column values using boolean masksLogical AND operationMaking DataFrame string column lowercaseMapping True and False to 1 and 0 respectivelyMapping values of a DataFrame using a dictionaryModifying a single value in a DataFrameRemoving characters from columnsRemoving comma from column valuesRemoving first n characters from column valuesRemoving last n characters from column valuesRemoving leading substringRemoving trailing substringReplacing infinities with another value in DataFrameReplacing values in a DataFrameRounding valuesSorting categorical columnsUsing previous row to create new columns
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Making DataFrame string column lowercase in Python
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schedule Jul 1, 2022
Last updated Python●Pandas
Tags tocTable of Contents
expand_more We can making a DataFrame string column lowercase in Python using the str.lower()
method.
Examples
Consider the following DataFrame:
df
A B0 HELLO Sky1 Friend ToWnEr
To convert strings in column "A"
to lowercase:
df
A B0 hello Sky1 friend ToWnEr
Published by Arthur Yanagisawa
Edited by 0 others
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