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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. ...
Michael's user avatar
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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 ...
electronpusher's user avatar
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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 ...
Fred vh's user avatar
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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 %= ...
user728148's user avatar
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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 ...
SimoneA's user avatar
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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 ...
Lauren's user avatar
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2 votes
1 answer
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): ...
Mimi's user avatar
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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-...
Reut's user avatar
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2 votes
1 answer
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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 ...
Tlaloc-ES's user avatar
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1 answer
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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 ...
Ankita Talwar's user avatar
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1 answer
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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 ...
Ayush Ranjan's user avatar
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1 answer
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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. ...
kalone_mevin's user avatar
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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 ...
rocksNwaves's user avatar