[R] Remove error data and clustering analysis
Hi, all, I’d like to do the clustering analysis in my dataset. The example data are as follows: Dataset 1: 500, 490, 486, 490, 491, 493, 480, 461, 504, 476, 434, 500, 470, 495, 3116, 3142, 12836, 3062, 3091, 3141, 3177, 3150, 3114, 3149; Dataset 2: 506, 473, 495, 494, 434, 459, 445, 475, 476, 128367, 470, 513, 466, 476,482, 1201, 469, 502; I had so many datasets like that. Basically, every dataset can classify one or two clusters (no more than 2), meanwhile, there have error data points, for example, 12836 is error data point in Dataset 1; and 128367, 1201 is error data points in dataset2. The clustered data is following the normal distribution, the standard deviation was known. That’s mean the one cluster is following the normal distribution when the dataset classified one cluster like dataset2; the two clusters are following the normal distribution respectively when the dataset classified two clusters like dataset1. Error data are far away of the mean. I am wondering is there any mathematic pipeline/function can do the analysis that removing error data, and clustering the dataset in 1 or 2 clusters? Thank you for your reply. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Remove error data and clustering analysis
Hi, all, I'd like to do the clustering analysis in my dataset. The example data are as follows: Dataset 1: 500, 490, 486, 490, 491, 493, 480, 461, 504, 476, 434, 500, 470, 495, 3116, 3142, 12836, 3062, 3091, 3141, 3177, 3150, 3114, 3149; Dataset 2: 506, 473, 495, 494, 434, 459, 445, 475, 476, 128367, 470, 513, 466, 476,482, 1201, 469, 502; I had so many datasets like that. Basically, every dataset can classify one or two clusters (no more than 2), meanwhile, there have error data points, for example, 12836 is error data point in Dataset 1; and 128367, 1201 is error data points in dataset2. The clustered data is following the normal distribution, the standard deviation was known. Thats mean the one cluster is following the normal distribution when the dataset classified one cluster like dataset2; the two clusters are following the normal distribution respectively when the dataset classified two clusters like dataset1. Error data are far away of the mean. I am wondering is there any mathematic pipeline/function can do the analysis that removing error data, and clustering the dataset in 1 or 2 clusters? Thank you for your reply. 2009-03-27 wanggd1983 [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
