Difference between revisions of "An initial path towards statistical analysis"
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Relevant figures: <br> | Relevant figures: <br> | ||
| + | ==Categorical variables== | ||
| + | ===[[Simple Statistical Tests#Chi-square Test of Stochastic Independence|Chi-Square test]]=== | ||
| + | R commands: <br> | ||
| + | Relevant figures: <br> | ||
==Categorical and continuous data== | ==Categorical and continuous data== | ||
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R commands: <br> | R commands: <br> | ||
Relevant figures: <br> | Relevant figures: <br> | ||
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Does you categorical dependent variables have 1-2 factor levels? | Does you categorical dependent variables have 1-2 factor levels? | ||
Revision as of 21:34, 18 January 2021
Start here with your data! This is your first question.
Do you have several continuous variables without clear dependencies? (?)
Yes!
No!
R commands:
Relevant figures:
Contents
Univariate statistics
Does you data contain at least one categorical variable?
Yes, I have at least one categorical variable! (?) (?)
R commands:
Relevant figures:
Categorical variables
Chi-Square test
R commands:
Relevant figures:
Categorical and continuous data
R commands:
Relevant figures:
Does your data consist only of categorical variables?
R commands:
Relevant figures:
Does you categorical dependent variables have 1-2 factor levels?
t-test
Does you categorical dependent variables have more than 2 factor levels?
Analysis of Variance
R commands:
Relevant figures:
Dependent variable normally distributed
Type II Anova
R commands:
Relevant figures:
Dependent variable not normally distributed
Dependent variable is count data
R commands:
Relevant figures:
Dependent variable is 0/1 or proportions
R commands:
Relevant figures:
Type III Anova
R commands:
Relevant figures:
Dependent variable not normally distributed
Dependent variable is count data
R commands:
Relevant figures:
Dependent variable is 0/1 or proportions
R commands:
Relevant figures:
Are there random factor variables?
Random factors
R commands:
Relevant figures:
No, I have only continuous variables! (?) (?)
Continuous variables
Non dependent relations?
Correlations
Clear dependent relations
Regression models
Dependent variable normally distributed
Linear Regression
Dependent variable not normally distributed
Generalised linear model
Dependent variable is count data
Dependent variable is 0/1 or proportions
R commands:
Relevant figures:
Multivariate statistics
Yes!
Is your dependent variable normally distributed?
Is your dependent variable not normally distributed?
Does your independent variable contain only 1 or 2 groups?
Does your independent variable contain more than 2 groups?
Is your dependent variable normally distributed?
Is your dependent variable not normally distributed?
Resterampe
[[At least one continuous and one categorical variable|
More than 2 groups
Analysis of Variance
Dependent variable normally distributed
INSERT TYPE II
INSERT RANDOM FACTOR
INSERT LMM
Dependent variable not normally distributed
Dependent variable is count data
Dependent variable is 0/1 or proportions
