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
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:
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
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
I am trying to compare cross-correlation using FFT vs using windowing method. My Matlab code is: isize = 20;
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
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:
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
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
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.
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