Questions tagged [anova]
The anova tag has no usage guidance.
11
questions
2
votes
1answer
40 views
Score of ANOVA in selected features
I selected features using ANOVA (because I have Numerical data as input and Categorical data as target):
...
0
votes
0answers
24 views
ANOVA on one hot encoded feature
Suppose I am training a model for binary classification and I have a categorical feature which has been one-hot encoded. Suppose the feature is Gender and the one ...
0
votes
0answers
28 views
ANOVA Feature Scoring
in order to score features, in ORANGE, using ANOVA scoring, the features should have a normal distribution?
Thank you,
J
1
vote
0answers
86 views
Levene test for equal variance
I would like to run one-way ANOVA test on my data. I saw that one of several assumptions for one-way ANOVA is that there needs to be homogeneity of variances. I have run the test for different data-...
1
vote
1answer
67 views
What conclusion can I get when the variable is influenced by other but there isn't any correlation?
I am doing an analytic exploratory analysis.
If the target is a continuous variable and the attributes are all categorical (discrete values), in order to know if exist any influence on the target from ...
0
votes
1answer
366 views
When should mutual information be used for feature selection over other feature selection methods like correlation, ANOVA , etc?
I have a data set with categorical and continuous/ordinal explanatory variables and continuous target variable. I tried to filter features using one-way ANOVA for categorical variables and using ...
0
votes
1answer
15 views
pass variable length argument to mstats.kruskalwallis
I am trying to run kruskawallis test on multiple columns of my data for that i wrote an function
...
0
votes
1answer
164 views
What does it mean to have 1 degree of freedom in ANOVA test?
So I used python to run multi-factorial ANOVA analysis on a data set. I first used a ols.fit() and then the anova_lm function. I realized for the variables I am analyzing their degree of freedom is 1. ...
1
vote
1answer
41 views
Question on ANOVA and Correlation/Association
I've been working on examining statistical relationships between variable:
Pearsons, Spearman's for continuous variables
Kendall's Tau, Cramer's V for ordinal/nominal variables.
I know there's many ...
1
vote
0answers
49 views
What is the underlying difference between linear and non-linear relationship?
Study on linear correlation coefficient and nonlinear correlation coefficient in mathematical statistics
WANG Ting, ZHANG Shiqiang
Studies in Mathematical Sciences 3 (1), 58-63, 2011
From the above ...
5
votes
3answers
2k views
Should features be correlated or uncorrelated for classification?
I have seen researchers using pearson's correlation coefficient to find out the relevant features -- to keep the features that have a high correlation value with the target. The implication is that ...
