Question

大家好。我有一个 .csv 文件，我想从我的驱动器中读取。我正在使用 colab 来做到这一点。但是，我使用 excel 来设置 csv 文件，但是当我在 colab 上指定位置时，它仍然显示 .xlsx，并且出现以下错误：

ParserError                               Traceback (most recent call last)
<ipython-input-4-b8dede7d2e2c> in <module>()
      7 
      8 #load dataset
----> 9 dataset = pd.read_csv('/content/mnt/MyDrive/Colab Notebooks/salary_data.csv.xslx')
     10 
     11 # split data into features and target

3 frames
/usr/local/lib/python3.6/dist-packages/pandas/io/parsers.py in read(self, nrows)
   2155     def read(self, nrows=None):
   2156         try:
-> 2157             data = self._reader.read(nrows)
   2158         except StopIteration:
   2159             if self._first_chunk:

pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader.read()

pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._read_low_memory()

pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._read_rows()

pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._tokenize_rows()

pandas/_libs/parsers.pyx in pandas._libs.parsers.raise_parser_error()

ParserError: Error tokenizing data. C error: Expected 1 fields in line 4, saw 2

这是下面的代码：model.ipynb

import numpy as np
import pandas as pd
from sklearn.model_selection import train_test_split
from sklearn.linear_model import LinearRegression
import pickle
from sklearn.metrics import r2_score

#load dataset
dataset = pd.read_csv('/content/mnt/MyDrive/Colab Notebooks/salary_data.csv .xslx')

# split data into features and target
X = dataset.iloc[:, :-1].values
y = dataset.iloc[:, 1].values

#split the data into train and test set
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size = 0.05, random_state = 0)

# create a model
regressor = LinearRegression()

#train the model
regressor.fit(X_train, y_train)

#perform prediction
y_pred = regressor.predict(X_test)

# you can check the peformance of the model from the following code
#print("R2 score: {}".format(r2_score(y_test,y_pred)))

#save the trained model
pickle.dump(regressor, open('/content/mnt/MyDrive/Colab Notebooks/regressor.pkl','wb'))

请帮我解决这个问题。谢谢

Answer 1

首先，您的路径似乎有误。接近尾声的地方。

('/content/mnt/MyDrive/Colab Notebooks/salary_data.csv .xslx')

其次，该文件实际上是 .csv 还是 .xslx？它有两个结局，所以有点模棱两可。

如果是 .csv，您应该从文件名和路径的末尾删除 .xslx。

如果是 .xlsx，您可以使用 read_excel() 而不是 read_csv() 或您可以在 Excel 中转换为 CSV。在 Excel 中打开 .xslx -> 转到文件 -> 另存为 -> CSV。

使用 colab 从内存中读取 .csv 文件

1 个答案: