Questions tagged [anova]

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ANOVA procedure - Regression

I am new to regression. Can someone explain to me how the regression sum of squares shows the explained variation? Essentially, why is it (y hat - y bar)? I hope i'm explaining my question accurately. ...
40 views

Python Modules for Anova

I am looking for a Python module that will replicate the features in this JMP plot. It is like a multi variable boxplot but the quartiles are represented with lines, the raw data points are shown, and ...
71 views

Feature selection: ANOVA between features vs within a feature

I am currently performing feature selection on a dataset containing continuous and categorical features. The target is a continuous variable. If I understand properly, ANOVA can be used between ...
33 views

Statistical significance on aggregate data to show that the groups are different?

I am working with performance data for three groups for each region. The denominator for the groups is the number of people who are identified as low performers. For region A, Group-1 low performer %= ...
1 vote
1k views

Are Chi-square and ANOVA (f_classif) to select best features?

I have a binary classification problem (target 0 o 1), I have both variables continuous and categorical as features. I understood that about Chi-square i can use only categorical features to evaluate ...
• 41
116 views

What model should I use to predict monthly sales by products?

I am trying to predict monthly sales by product based on a plethora of variables. There are 4 predictors. One is categorical (month) and the other three are numerical. One of the variables is just ...
260 views

Score of ANOVA in selected features

I selected features using ANOVA (because I have Numerical data as input and Categorical data as target): ...
• 45
1 vote
116 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-...
• 299
87 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 ...
• 337
2k 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 ...
20 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 ...
• 411