![]() ![]() This will also avoid any potential UnicodeEncodeErrors you might encounter while saving. It would be wise to set this parameter if you are writing string data so that other applications know how to read your data.To explain this in a different way, if your data DOES have an index, you can (and should) use index=True or just leave it out completely (as the default is True). If your DataFrame does not have an index (IOW, the df.index is the default RangeIndex), then you will want to set index=False when writing. By default, the index of df is written as the first column.Don't change this unless you know you need to. The default separator is assumed to be a comma ( ','). ![]() Here's a table listing some common scenarios of writing to CSV files and the corresponding arguments you can use for them. to_csv has arguments you can pass to address these requirements. ![]() For example, you might want to use a different separator, change the datetime format, or drop the index when writing. This function offers many arguments with reasonable defaults that you will more often than not need to override to suit your specific use case. To write a pandas DataFrame to a CSV file, you will need DataFrame.to_csv. ![]()
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