pca

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pca in R with princomp() and using svd() [duplicate]

This question already has an answer here: Closed 11 years ago. Possible Duplicate: Comparing svd and princomp in R[详细]

2023-04-11 16:13 分类：问答
Comparing svd and princomp in R

I want to get singular values of a matrix in R to get the principal components, then make princomp(x) too to compare results[详细]

2023-04-10 14:23 分类：问答
Matlab: how to find which variables from dataset could be discarded using PCA in matlab?

I am using PCA to find out which variables in my dataset are redundand due to being highly correlated with other variables. I am using princomp matlab function on the data previously normalized using[详细]

2023-04-08 21:36 分类：问答
OpenCV PCA question

I\'m trying to create a PCA model in OpenCV to hold pixel coordinates. As an experiment I have two sets of pixel coordinates that maps out two approximate circles. Each set of coordiantes has 48 x,y p[详细]

2023-04-08 21:30 分类：问答
feature extraction using PCA

My job is to perform gesture recognition. I want to do that by training a support vector machine using the features extracted by performing PCA(Principal component Analysis).[详细]

2023-03-18 19:36 分类：问答
problem in performing pca in emgucv

I\'m trying to perform PCA in EmguCV as: Matrix matrix = new Matrix(noOfSamples, noOfFeatures); // put data in matrix[详细]

2023-03-18 05:19 分类：问答
Plotting pca biplot with ggplot2

I wonder if it is possible to plot pca biplot results with ggplot2. Suppose if I want to display the following biplot results with ggplot2[详细]

2023-03-17 12:50 分类：问答
How to whiten matrix in PCA

I\'m working with Python开发者_如何学运维 and I\'ve implemented the PCA using this tutorial. Everything works great, I got the Covariance I did a successful transform, brought it make to the original[详细]

2023-03-17 09:41 分类：问答
How to make prediction with PCA

I have been able to calculate the eigenvectors/values of my data sample (N samples of dimension M) and I would like to reduce the dimension to say 3. If i am correct i need to choose the first 3 eigen[详细]

2023-03-12 10:13 分类：问答
Non sorted eigenvalues for finding features in Python

I am now trying some stuff with PCA but it\'s very important for me to know which are the features responsible for each eigenvalue.[详细]

2023-03-10 00:44 分类：问答