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How to upgrade scikit-learn (sklearn) to the latest version
asked
Sep 11, 2021
in
Machine Learning
by
pythonuser
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python
sklearn
scikit-learn
+2
votes
1
answer
How to impute missing values in training datasets
asked
Apr 5, 2021
in
Machine Learning
by
kush
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40.5k
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python
training data
machine learning
+3
votes
1
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Python: how to normalize the elements of a matrix so that each element is between 0 and 1
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Mar 2, 2021
in
Machine Learning
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pythonuser
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python
matrix
list
normalize
+3
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1
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How to generate sample data for testing machine learning classifiers
asked
Jan 1, 2021
in
Machine Learning
by
pythonuser
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python
machine learning
classifier
+3
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1
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How to generate train and test sets for 5-fold cross validation
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Dec 29, 2020
in
Machine Learning
by
pythonuser
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73.8k
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train
test
cross validation
python
+4
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1
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XGBoost : how to store train and test data in a DMatrix object in Python
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Aug 30, 2020
in
Machine Learning
by
pythonuser
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73.8k
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xgboost
python
dmatrix
+2
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1
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XGboost: How to save a trained model and load it
asked
Nov 21, 2019
in
Machine Learning
by
pythonuser
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73.8k
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xgboost
model
train
load
save
+2
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1
answer
XGboost: how to find hyperparameters (parameters) of a trained model
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Nov 21, 2019
in
Machine Learning
by
pythonuser
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73.8k
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xgboost
hyperparameter
model
+2
votes
1
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Python: how to flip the labels of data from 1 to 0 and vice versa
asked
Nov 5, 2019
in
Machine Learning
by
pythonuser
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73.8k
points)
label
python
sklearn
labelencoder
+2
votes
1
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Python: how to write outputs from GridSearchCV() to a file
asked
Oct 28, 2019
in
Machine Learning
by
pythonuser
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73.8k
points)
python
gridsearchcv
console
file
sklearn
+2
votes
1
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Python: How to shuffle two related lists (training data and labels ) in the same order
asked
Oct 21, 2019
in
Machine Learning
by
pythonuser
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73.8k
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python
shuffle
list
+2
votes
1
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Predict probability using cross_val_predict() for classification problem
asked
Aug 30, 2019
in
Machine Learning
by
pythonuser
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73.8k
points)
predicted class
predicted probability
cross validation
classifier
+2
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1
answer
ValueError: Found input variables with inconsistent numbers of samples
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Aug 23, 2019
in
Machine Learning
by
pythonuser
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73.8k
points)
sklearn
auc_roc
+2
votes
1
answer
Python : Convert categorical labels (character) to numerical labels
asked
Jun 12, 2019
in
Machine Learning
by
pythonuser
(
73.8k
points)
python
label
categorical
numerical
+2
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1
answer
Python: how to calculate true positive, true negative, false positive, and false negative
asked
May 9, 2019
in
Machine Learning
by
pythonuser
(
73.8k
points)
python
confusion matrix
predicted class
true class
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