I want to insert a text in a range of lines in a specific column of a csv file like [2:], I already searched other questions like this on the internet, but none worked for me.
Example:
"File before I insert text"
NAME, AGE
, 2
, 3
, 4
, 5
"File after I insert a text"
NAME, AGE
, 2
henrique , 3
henrique , 4
, 5
My code:
header = ["Name", "Age"]
df = pd.DataFrame(columns=header)
var=df.shape[0]
df.loc[2:, 'Name'] = 'henrique'
df.to_csv("stackoverflow.csv", sep=',
index=False)
https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.at.html
To insert data you want to use df.at(2:, 'Name')
df = pd.DataFrame(columns=header)
var=df.shape[0]
df.at(2:, 'Name') = 'henrique'
df.to_csv("stackoverflow.csv", sep=',
index=False)
However, if you want the following output
NAME, AGE
, 2
henrique , 3
henrique , 4
, 5
Then you should use this index
df = pd.DataFrame(columns=header)
var=df.shape[0]
df.at(1:2, 'Name') = 'henrique'
df.to_csv("stackoverflow.csv", sep=',
index=False)
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