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I have the following code which imports a CSV file. There are 3 columns and I want to set the first two of them to variables. When I set the second column to the variable "efficiency" the index column is also tacked on. How can I get rid of the index column?
df = pd.DataFrame.from_csv('Efficiency_Data.csv', header=0, parse_dates=False) energy = df.index efficiency = df.Efficiency print efficiency I tried using
del df['index'] after I set
energy = df.index which I found in another post but that results in "KeyError: 'index' "
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pandas DataFrame to CSV with no index can be done by using index=False param of to_csv() method. With this, you can specify ignore index while writing/exporting DataFrame to CSV file.
We can remove the index column in existing dataframe by using reset_index() function. This function will reset the index and assign the index columns start with 0 to n-1. where n is the number of rows in the dataframe.
When writing to and reading from a CSV file include the argument index=False and index_col=False, respectively. Follows an example:
To write:
df.to_csv(filename, index=False) and to read from the csv
df.read_csv(filename, index_col=False) This should prevent the issue so you don't need to fix it later.
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