All Questions
Tagged with pearson-r categorical-data
10
questions
1
vote
0
answers
41
views
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 ...
2
votes
1
answer
190
views
Correlation between categorical and continuous variable
I would like to calculate the correlations between ambient light measurements and the daytime. The ambient light is measured by a smartphone light sensor and is a continuous variable (basically, it is ...
1
vote
1
answer
378
views
Correlation between two constant variables using the different approaches [duplicate]
Let's say we have a vector X = (1, 1, 1) and Y = c(2, 2, 2). I want to calculate correlation between those. Taking Pearson ...
1
vote
1
answer
85
views
Analyzing a categorical variable with 'Only A', 'Only B', and 'Both A and B'
I may not be searching the correct terms to get an education on this seemingly simple question:
I am analyzing the correlation between two categorical variables with Pearson's chi-square test and its ...
1
vote
0
answers
63
views
Type of correlation between binary and ordinal variable [duplicate]
I have two variables. The first variable is binary (yes or no) and measures if a person is happy or not. The second variable consists of 5 integers from 1 to 5 and measures if an emotion is positive ...
0
votes
1
answer
39
views
Which is the more reliable method for measuring correlation between dichotomous variables?
I would like to know which are the most commons methods for measuring correlation with dichotomous/categorical variables.
I often use Chi-square, but I have seen that some people use Pearson ...
1
vote
1
answer
594
views
How can I combine nominal with ordinal data to build a unique variable?
I performed an Interview with 44 questions Protocol. The structure of questions is based on 18 variables. Major variables are coming from theory. Every major variable consists of 3,4 or more question ...
1
vote
0
answers
1k
views
Can we combine two groups to enhance power for analysis if there are no group differences on the variables?
I am reading a peer-reviewed paper on psychology and found the author use pearson r on sex (nominal variable):
The correlation table
And then the authors conclude no gender difference on all ...
4
votes
1
answer
1k
views
Generate random correlated categorical (ordinal) variables
Lets say I want to generate 100 observations of 2 likert scaled, normally? distributed variables with 10 categories (1-10) and a pearson correlation of f.e. ~0.8. I am aware that using pearson ...
4
votes
1
answer
2k
views
Autocorrelation of discrete time series
I am currently planning on calculating the autocorrelation for various lags given a time series. However, my elements of the time series are "discrete" and abstract classes; i.e., no integers.
For ...