Questions tagged [pearson-r]
The Pearson product-moment correlation coefficient is a measure of the linear relationship between two variables $X$ and $Y$, giving a value between +1 and −1.
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Question about correlations
Let’s say I want to measure the correlation between two variables, both measured on a ratio scale. Let’s say however that the relationship between the variables isn’t linear (so I can’t calculate ...
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correlations for different variables and correlation matrix
I have a continuous target variable and 40 independent variables - some of them are ordinal, some are binary (Yes/No). When creating a correlation matrix I get correlations between:
continuous and ...
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Lower correlation in sub-group than in main-group
Variable 1: Points in the NBA in Year 1;
Variable 2: Points in the NBA in Year 2;
Objective: Calculate the year-to-year correlation coefficient
Let's say the correlation coefficient for the entire ...
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Sign of pearson correlation with negative regression coefficient
I want to obtain the pearson correlation of "experienced disfluency" and "narrative engagement" from the attached unstandardized coefficients for my meta-analysis. The paper is ...
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Cross-lagged Pearson correlation in R
I have a dataset where I have two recordings (sessions) of two different variables.
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How to [properly] correlate environmental variables to NMDS ordination axes?
Data + setup:
I've constructed an NMDS ordination from a Bray-Curtis distance matrix calculated from relativized abundances (basal areas) of trees. Samples include ~40 forested plots that have been ...
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Calculate Spearman and Pearson correlation on variables of different units
If for example I have the following data
X Y
3.2 0
1.5 0
6.5 3
2.4 1
6.2 3
where X is a value between 1 (best case) and 7 (worst case)
and Y is a ...
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How to address missing values in Pearson Correlation?
I am working on Pearson Correlations and for each individual I have at least one missing data point. When I create the correlation matrix in R, I get NAs for each individual where a variable is ...
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Pearson correlation for timeseries data
I have a dataset like below and want to calculate Pearson Correlation Coefficient as described in https://peerj.com/articles/cs-1108/#table-4 . If I understand correctly, x can be numerical(...
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Emerging/Disappearing correlation in time series (Pearson correlation)
[My first question here. Thanks for taking the time to look into it!]
I am working on public health data where I calculate the correlation between incident counts (zero or positive integers) from two ...
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Spearman correlation and Pearson correlation
If $X$ and $Y$ has the Spearman correlation $r_s=1$, is it possible that the Pearson correlation between $X$ and $Y$ is 0?
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Comparability between Pearson's Correlation and more complex machine learning models
If relationships between two or more variables are found by Support Vector Machines, Random Forests, Decision Trees, and/or Extreme Learning Machines, could a simple Pearson's Correlation also detect ...
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Following Pearson correlation analysis how to compare subsets of the significant correlations
How can I statistically compare subsets of the significant correlations produced from Pearson correlation analysis (r-value, p-value) and Benjamini-Hochberg multiple testing adjustment (q-value)?
To ...
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How can we simulate the sensitivity of Pearson correlation coefficient to the distributions of variables? [closed]
I want to make a simulation experiment on the sensitivity of Pearson correlation coefficient to the distribution types of variables. In other words, I want to demonstrate "when the distributions ...
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Correlation bounds on transformations of two random variables
Suppose I have 3 real-valued random variables, $X, Y, Z$ and their pairwise correlations, $\rho_{XY}, \rho_{YZ}, \rho_{XZ}$, and I am tasked with finding a 2d function $f$ such that $f(X,Y)$ has ...
