Python Playground

I'm new to python and numpy library.I'm doing PCA on my custom dataset. I calculate the mea… Read more How To Remove E Scientific Notation From Mean Method Of Numpy Lib In Python

I'm using scikit-learn to perform PCA on this dataset. The scikit-learn documentation states th… Read more Scikit-learn Pca: Matrix Transformation Produces Pc Estimates With Flipped Signs

I just tried using the IncrementalPCA from sklearn.decomposition, but it threw a MemoryError just l… Read more Incremental Pca On Big Data

I have a huge dataset on which I wish to PCA. I am limited by RAM and computational efficency of PC… Read more Using Memmap Files For Batch Processing

I'm implementing a classification task with binary outcome using RandomForestClassifier and I k… Read more Optimal Feature Selection Technique After Pca?

When choosing the number of principal components (k), we choose k to be the smallest value so that … Read more Python Scikit Learn Pca.explained_variance_ratio_ Cutoff

From the documentation of sklearn RandomizedPCA, sparse matrices are accepted as input. However whe… Read more Scikit-learn (sklearn) Pca Throws Type Error On Sparse Matrix