# Search results

1. ### How to determine the abnormality of a specific variable by taking into account all the other variables in the data?

Hello, I have an issue of machine learning/anomaly detection. Indeed, I have a variable Y and several other variables X. The purpose is to quantify the degree of abnormality of the data on Y but I have to take into account the values on the other variables (the relationship between Y and X)...
2. ### Hill's estimator for heavy tails

Hello, I have a heavy-tail distribution and I was wondering what exactly does the Hill's estimator ? I am not sure to fully understand this notion. I know it estimates something about the tail of the distribution. Thank you so much Have a nice day
3. ### Clustering of variables with time and grouped data

Hello ! I come to you because I have to help one of my colleague who is a plant biologist. The purpose of this study is to cluster 70 quantitative variables. Each of these variables represents a different protein (it is a measure done on it, I don't know how exactly it works). But here is the...
4. ### dissimilarity measure between categorical variables

Hello, I have a problem. Indeed I have 9 categorical variables and I'm trying to do clustering variables. Could you tell me if I'm doing the right thing ? 1) I calculate for each pair of variables the Cramer's V. I represent those associations in a matrix. I call it X. 2) I calculate 1-X and...
5. ### Correlation between two set of variables

Hello, i have a problem with a correlation study. I have to study the linear relationship between two set of variables X and Y. There are 12 variables in X and 4 in Y. I applied a Canonical Correlation Analysis and it seemed all the variables in X with 3 in Y were correlated. I also did a...