correlation
Any framework for real-time correlation/analysis of event-stream (aka CEP) in Erlang?
Would like to analyze a stream of events, sharing certain characteristics (s.a. a common source), and within a given time-window, ultimately to correlate those multiple events and draw some inference[详细]
2023-01-27 13:59 分类:问答cor shows only NA or 1 for correlations - Why?
I\'m running开发者_如何学编程 cor() on a data.framewith all numeric values and I\'m getting this as the result:[详细]
2023-01-17 21:21 分类:问答Calculate correlation with cor(), only for numerical columns
I have a dataframe and would like to calculate the correlation (with Spearman, data is categorical and ranked) but only for a subset of columns. I tried with all, but R\'s cor() function only accepts[详细]
2023-01-13 07:26 分类:问答Matlab: correlation number
I have a 开发者_高级运维2 vectors of numbers of either 1 or -1. What are the standard tools on Matlab that would help me calculate a correlation number between the two vectors? Thanks in advance!The c[详细]
2023-01-11 20:00 分类:问答comparing Matlab vs CUDA correlation and reduction on a 2D array
I am trying to compare cross-correlation using FFT vs using windowing method. My Matlab code is: isize = 20;[详细]
2023-01-10 05:39 分类:问答Alternative to distance metric in nearest neighbor algorithm?
I came across an implementation of the nearest neighbor algorithm for finding matches between certain keypoints in two similar images. The keypoints were generated by the SIFT algorithm. The points ar[详细]
2023-01-05 10:29 分类:问答Calculating correlation coefficient using PostgreSQL?
I have worked out how to calculate the correlation coefficient开发者_开发知识库 between two fields if both are in the same table:[详细]
2023-01-03 13:26 分类:问答Eta/Eta-squared routines in R
Apart from graphical estimation of linearity (gaze-at-scatterplot method), which is utilized before applying some technique from GLM family, there are several ways to do this estimation arithmetically[详细]
2023-01-02 14:53 分类:问答MySQL: Complex Join Statement involving two tables and a third correlation table
I have two tables that were built for two disparate systems.I have records in one table (called \"leads\") that represent customers, and records in another table (called \"manager\") that are the exac[详细]
2022-12-30 11:02 分类:问答Phase correlation
How can rotation angle be determined by phase correlation(using fft) of 2 images? The algorithm given in http://en.wikipedia.org/wiki开发者_JS百科/Phase_correlation returns linear shift, not angular.[详细]
2022-12-30 10:03 分类:问答