问题:如何将tsv文件加载到Pandas DataFrame中?

我是python和pandas的新手。我正在尝试将tsv文件加载到熊猫中DataFrame

这是我正在尝试的错误:

>>> df1 = DataFrame(csv.reader(open('c:/~/trainSetRel3.txt'), delimiter='\t'))

Traceback (most recent call last):
  File "<pyshell#28>", line 1, in <module>
    df1 = DataFrame(csv.reader(open('c:/~/trainSetRel3.txt'), delimiter='\t'))
  File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 318, in __init__
    raise PandasError('DataFrame constructor not properly called!')
PandasError: DataFrame constructor not properly called!

I’m new to python and pandas. I’m trying to get a tsv file loaded into a pandas DataFrame.

This is what I’m trying and the error I’m getting:

>>> df1 = DataFrame(csv.reader(open('c:/~/trainSetRel3.txt'), delimiter='\t'))

Traceback (most recent call last):
  File "<pyshell#28>", line 1, in <module>
    df1 = DataFrame(csv.reader(open('c:/~/trainSetRel3.txt'), delimiter='\t'))
  File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 318, in __init__
    raise PandasError('DataFrame constructor not properly called!')
PandasError: DataFrame constructor not properly called!

回答 0

:由于17.0 from_csv气馁:使用pd.read_csv替代

该文档列出了一个.from_csv函数,该函数似乎可以执行您想要的操作:

DataFrame.from_csv('c:/~/trainSetRel3.txt', sep='\t')

如果您有标题,则可以传递header=0

DataFrame.from_csv('c:/~/trainSetRel3.txt', sep='\t', header=0)

Note: As of 17.0 from_csv is discouraged: use pd.read_csv instead

The documentation lists a .from_csv function that appears to do what you want:

DataFrame.from_csv('c:/~/trainSetRel3.txt', sep='\t')

If you have a header, you can pass header=0.

DataFrame.from_csv('c:/~/trainSetRel3.txt', sep='\t', header=0)

回答 1

从17.0开始from_csv不建议使用。

使用pd.read_csv(fpath, sep='\t')pd.read_table(fpath)

As of 17.0 from_csv is discouraged.

Use pd.read_csv(fpath, sep='\t') or pd.read_table(fpath).


回答 2

使用read_table(filepath)。默认分隔符是制表符

Use read_table(filepath). The default separator is tab


回答 3

试试这个

df = pd.read_csv("rating-data.tsv",sep='\t')
df.head()

在此处输入图片说明

您实际上需要修复sep参数。

Try this

df = pd.read_csv("rating-data.tsv",sep='\t')
df.head()

enter image description here

You actually need to fix the sep parameter.


回答 4

打开文件,另存为.csv,然后应用

df = pd.read_csv('apps.csv', sep='\t')

对于任何其他格式,只需更改sep标记

open file, save as .csv and then apply

df = pd.read_csv('apps.csv', sep='\t')

for any other format also, just change the sep tag


回答 5

df = pd.read_csv('filename.csv', sep='\t', header=0)

您可以通过指定分隔符和标头将tsv文件直接加载到pandas数据框中。

df = pd.read_csv('filename.csv', sep='\t', header=0)

You can load the tsv file directly into pandas data frame by specifying delimitor and header.


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