All Questions
Tagged with pearson-r spearman-rho
118
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27
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Which correlation test to use
I'm working with datasets on economic inequality and crime rates at the county level to produce correlation matrices. My economic inequality data has several variables, which are percentage of county ...
3
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42
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What is the minimum Pearson sample correlation given a perfect sample rank correlation with no ties? [duplicate]
Let $(X, Y)$ be a random sample of finite size $n$ from a bivariate continuous distribution with unknown parameters $(\rho_{XY},\mu_X,\mu_Y,\sigma_X,\sigma_Y)$. Assume observed values are real numbers ...
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Correlation of Group of Questions in Likert Scale answers
let's say that we have a response survey data frame with 6 columns.Each column is a question.Q1,Q2,Q3,...,Q6. The responses are from 1 to 5. 1 is translated to Very Bad,4 to Bad,3 to neutral,2 to good,...
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How to check linear independence of categorical features with a numerical target?
Suppose I am doing linear regression on a dataset. My dataset contains columns f1, f2 ,f3 ,f4 , f5 , target
. Features (independent variables) are the column names starting with "f" and my ...
- 367
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58
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Pearson & Spearman correlation coefficient in their extreme
I am working right now in R with correlation coefficients. I know that we can achieve approximately a Pearson coefficient r=0 and Spearman p=1, because Pearson is sensitive to outliers. However, I was ...
- 121
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415
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When to use Pearson's test and when to use Spearman's test?
I want to do a correlation analysis on a dataset of 28 samples.
I want to correlate the age with the size of a reflex response.
But I don't understand whether I should use Pearson's or Spearman's test....
- 21
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1
answer
30
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Deducing from Ordinal to Binary Data
Assume I have two rank vectors $r^A, r^B$ of size $p$ - that is, each of them is some permutation of $1,...,p$. For the sake of simplicity, assume that $p$ is odd.
Now, I take these vectors and recode ...
- 4,032
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Pearson or Spearman? [duplicate]
After using the Shapiro-Wilk test for Bivariate Normality, I found different values of p. For the ones which were p<0.05 I used Spearman and the ones which were p>0.05 I used Pearson. Is it the ...
- 47
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57
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What statistical test should I use for my dataset - Pearson's or Spearman's?
I'm not quite sure what statistical test I should be conducting for my dataset. I am aiming to find the correlation between two variables (concentration of copper vs concentration of chlorophyll). My ...
- 11
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correlation that is less sensitive to neighboring class changes
I am calculating the correlation between the scores a radiologist attributes to an MRI image (discrete 0,1,2,3), against the continuous quantification of disease (continuous between 0 and 1). I see a ...
- 101
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685
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Can I compare Pearson's r and Spearman's rho with Fisher's r to z transformation?
I'm using the tool in the following website to compare correlation coefficients:
http://vassarstats.net/rdiff.html
The tool uses Fisher's r to z transformation to ultimately compare two correlation ...
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126
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Correlation between two datasets
I have two datasets having values :
s1 = [25 ,75, 25, 75, 25, 75, 25, 75, 25, 75]
and s2 = [46.24, 73.16, 27.13, 74.30, 25, 72.52, 53.15, 75, 40.15, 69.86]
Pearson correlation coefficient = 0.90 and
...
- 33
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228
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Question about deciding whether to use Pearson's and Spearman's correlation [duplicate]
Let's say I have two variables and I want to measure the association between them. I've been reading up on running Pearson's correlation vs. Spearman's. I understand that Pearson's measures linear ...
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75
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Questions about Pearson's correlation linearity assumption and Spearman's correlation assumption of monotonic relationship
I have a question about correlations. So let's say I have 9 variables: Y1, Y2, Y3, X1, X2, X3, X4, X5, and X6. All of the variables are measured on a ratio scale. Let's say I want to measure the ...
6
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2
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796
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Question about running Spearman's correlation instead of Pearson's
I have a question about correlations. Let's say I want to measure the associations between a number of variables and all of them are measured on a ratio scale. I know I can use Pearson's $r$ ...