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Recent questions tagged python
+3
votes
1
answer
How to generate sample data for testing machine learning classifiers
asked
Jan 1
in
Programming Languages
by
pythonuser
(
16.2k
points)
python
machine learning
classifier
+3
votes
1
answer
How to generate train and test sets for 5-fold cross validation
asked
Dec 29, 2020
in
Programming Languages
by
pythonuser
(
16.2k
points)
train
test
cross validation
python
+3
votes
1
answer
Python : how to iterate over all the elements of a Numpy 2D array
asked
Dec 18, 2020
in
Programming Languages
by
pythonuser
(
16.2k
points)
python
numpy
array
+3
votes
1
answer
Python: how to read a tab-delimited text file and convert data into numpy array
asked
Dec 17, 2020
in
Programming Languages
by
pythonuser
(
16.2k
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python
numpy
read
+3
votes
1
answer
TypeError: can't multiply sequence by non-int of type 'numpy.float64'
asked
Dec 16, 2020
in
Programming Languages
by
kush
(
2.7k
points)
python
typerror
numpy
+2
votes
1
answer
Python: compute sum of a CSR matrix by column
asked
Dec 13, 2020
in
Programming Languages
by
pythonuser
(
16.2k
points)
python
csr_matrix
csr
sum
+3
votes
1
answer
IndexError: Index dimension must be <= 2
asked
Dec 10, 2020
in
Programming Languages
by
kush
(
2.7k
points)
python
dimension
csr_matrix
+3
votes
1
answer
TypeError: object of type 'filter' has no len()
asked
Dec 9, 2020
in
Programming Languages
by
kush
(
2.7k
points)
python
filter
typerror
+3
votes
1
answer
TypeError: <lambda>() missing 1 required positional argument: 'b'
asked
Dec 9, 2020
in
Programming Languages
by
kush
(
2.7k
points)
typeerror
python
lambda
+3
votes
1
answer
Python: find the number of unique elements in a list
asked
Dec 7, 2020
in
Programming Languages
by
pythonuser
(
16.2k
points)
list
python
+3
votes
1
answer
Python: how to select some rows from a pandas dataframe
asked
Dec 3, 2020
in
Programming Languages
by
pythonuser
(
16.2k
points)
python
pandas
dataframe
+3
votes
1
answer
Python: how to convert sparse matrix to a dense matrix
asked
Dec 1, 2020
in
Programming Languages
by
pythonuser
(
16.2k
points)
python
csr_matrix
compressed sparse matrix
+3
votes
1
answer
Python: Generate a balanced data set from an imbalanced data set for training the machine learning model
asked
Nov 24, 2020
in
Programming Languages
by
pythonuser
(
16.2k
points)
python
machine learning
balanced
dataset
+3
votes
1
answer
How to convert a list of numpy arrays into a Python list
asked
Oct 9, 2020
in
Programming Languages
by
pythonuser
(
16.2k
points)
python
list
array
numpy
+3
votes
1
answer
Python - TypeError: sparse matrix length is ambiguous; use getnnz() or shape[0]
asked
Oct 9, 2020
in
Programming Languages
by
pythonuser
(
16.2k
points)
python
typeerror
csr_matrix
compressed sparse matrix
csr
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