I try to do some PCA and TSNE analyses. I want to use sklearn to import the PCA and TSNE package.
Internet says that I should use these imports
from sklearn.decomposition import PCA
from sklearn.manifold import TSNE
https://scikit-learn.org/stable/modules/generated/sklearn.decomposition.PCA.html
https://scikit-learn.org/stable/modules/generated/sklearn.manifold.TSNE.html
However, I get this message when I try to import those.
ImportError: cannot import name 'PCA' from 'sklearn.decomposition' (unknown location)
I did install sklearn and am able to import sklearn.decomposition and sklearn.manifold. However, If I I try to do this:
import sklearn.decomposition as decom
decom.PCA
I get the same ImportError. I tried reinstalling sklearn and updating it, but that doesn't solve the problem. Does one of you have a clue of what I'm doing wrong? I'm using Python 3.7.8 and use jupyter lab with MiniConda.
The documentation of sklearn is version 23.2 and that is the same version as my scikit-learn is.
EDIT: I created a totally new virtual environment and now my dir(decom) is totally different. And those packages for PCA and TSNE are working. Could somebody enlighten me why those are not working in the my current environment? Does it have to do with incompatible packages? I did not get any warning for it. It is sort of solved, yet I'm curious what the reason is and how I can fix it in the future.
Related
I am currently trying to run a U-Net model in Keras, using PyCharm and Anaconda on Windows. My first attempts kept on working well. However, now I'm getting an error when I try to acces keras:
My imports:
from unet_model import multi_unet_model
from keras.utils import normalize
import os
import glob
import cv2
import numpy as np
from matplotlib import pyplot as plt
The error:
AttributeError: module 'tensorflow.python.client.pywrap_tf_session' has no attribute 'cxx_version'
Maybe one of you encountered the same problem and can give me a hint how to solve it.
The problem occured after trying to move the model from cpu to gpu. Now the model can't be processed at all. Maybe I changed some references without knowing it.
I am having trouble with a Jupyter script that I am using for a class at university. Useful information: I am using a MacBook Air (first time), macOS Monterey 12.0.1, M1 Apple chip, and I am working in a conda virtual environment with conda 4.11.0 and Python 3.9.7. This is the first part of the script:
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
from sklearn.preprocessing import StandardScaler
from sklearn.model_selection import train_test_split
from tensorflow import keras <--
import tensorflow as tf <--
from sklearn.utils import shuffle
from sklearn import preprocessing
from keras import regularizers <--
import random
from keras.utils.vis_utils import plot_model <--
import time
from IPython.display import Image
When I run it, I get this message:
The kernel appears to have died. It will restart automatically.
I tried commenting each row, and apparently, the problem is due to the ones that I highlighted with the arrow. So there is something wrong with TensorFlow. As suggested by my professor, I went on the terminal, typed ipython, then this:
In [1]: import tensorflow
zsh: illegal hardware instruction ipython
I looked it up on the internet, and I understood that there are some incompatibilities between some Python packages and the M1 Apple chip. I tried to follow this https://github.com/apple/tensorflow_macos, but when I use the command written there, this is what happens
(phdcourse) alessandroruggieri#Alessandros-MacBook-Air ~ % /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/apple/tensorflow_macos/master/scripts/download_and_install.sh)"
ERROR: TensorFlow with ML Compute acceleration is only available on macOS 11.0 and later.
This is pretty weird, considering I have macOS 12.0.1 (as said at the beginning).
To conclude, I have seen some posts about similar issues on the internet, but they all look rather confusing, so I would really appreciate an easy and clear help.
I was trying to import Categorical Encoder in sklearn
from sklearn.preprocessing import CategoricalEncoder
But I get the error
ImportError: cannot import name 'CategoricalEncoder' from 'sklearn.preprocessing' (D:\ProgramData\Miniconda3\lib\site-packages\sklearn\preprocessing\__init__.py)
I have version 0.21.3 of sklearn.
I checked online to see the documentation and it seems that CategoricalEncoder was there in version 0.20.dev0 (https://15359-843222-gh.circle-artifacts.com/0/home/ubuntu/scikit-learn/doc/_build/html/stable/modules/generated/sklearn.preprocessing.CategoricalEncoder.html)
But is not there in 0.21.3 (https://scikit-learn.org/stable/modules/classes.html#module-sklearn.preprocessing)
What happened to CategoricalEncoder?
Is there a way I can still use it? Like can I import 2 versions of sklearn and pull it from the 0.20.dev0 version
CategoricalEncoder is only available in the development version 0.20.dev0. Use OneHotEncoder and OrdinalEncoder insted.(see #10521)
I am trying to play around with machine learning but I am having issues with sklearn and importing cross_validation. I keep getting error messages saying
ImportError: cannot import name 'cross_validation' from 'sklearn' (C:\Python3.7\lib\site-packages\sklearn\__init__.py)
When I check pip list, it is definitely there; showing sklearn 0.0. There seems to be no other version of sklearn apart from 0.0.
Someone please help.
I am using sentdex's youtube tutorial series on regression for this code.
import pandas as pd
import sklearn
from sklearn import preprocessing, cross_validation,svm
from sklearn import LinearRegression
That is because Sklearn doesn't have any cross_validation module.
Try using:
from sklearn import model_selection
The cross_validation model has been deprecated.
When running from python console the following code works fine'
However when trying to use the same code in a myxxx.py it does not:
from sklearn import datasets
iris = datasets.load_iris()
print(iris.xx)
when testing sklearn it reports no failures
however when testing numpy I get 16 or so failures.
I don't know if these failures are related to my error or not.
This is on a windoes8.1 x64 machine.
So why would the code typed directly into the python console work but not from the file ( meaning it fails in spyder and python myfile.py)?
the error states something like unable to import numpy datasets. Sounds like some type of name clash or scope issue.
Thanks in advance