ValueError: Found array with 0 sample(s) (shape=(0, 13)) while a minimum of 1 is required by StandardScaler.
时间: 2024-05-03 14:22:43 浏览: 295
This error message indicates that you are trying to apply the StandardScaler transformation to an empty array or dataset, which is not possible. StandardScaler requires at least one sample (row) in the input data to calculate the mean and standard deviation necessary for scaling the data.
To resolve this issue, you need to ensure that your dataset has at least one row of data before applying the StandardScaler transformation. You can check the shape of your input dataset using the `shape` attribute of the numpy array or pandas dataframe.
For example, if you are using a pandas dataframe called `df`, you can check the shape using the following code:
```
print(df.shape)
```
This will print the number of rows and columns in the dataframe. If the number of rows is 0, then you need to add some data to the dataframe before applying the StandardScaler transformation.
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