R help - May 2023 - Question about implementing statistical test in R

Hi,

I am a new user and have a stats question that I need help implementing in
R.

I have 4 groups and I want to assess whether there is a statistical
difference between these groups at baseline first in a global comparison
test and then a pairwise comparison test.

There are about 2 continuous variables and 10 categorical variables

For the group wise comparison for continuous variables-I am using the Mann
Whitney test

For the categorical variables-I am using either chi square or Fisher
exact test for both global comparison and pairwise comparison.

What packages should I use to implement this in R? Is there any example
code that I use? I was thinking tbl_summary but don't think that's the
right one.

Would really appreciate any help with this!

Thank you!

	[[alternative HTML version deleted]]

Start with defining your dependent variable and independent variable(s). As an
equation like y equals some function of x, the y is the dependent variable. It
is often continuous, but does not have to be.

If your continuous variable is the dependent variable and you have one
categorical independent variable then the ANOVA would be a general comparison
tests determining if there are differences. This can be further broken down by a
multiple comparison test. The Tukey test is commonly used if you assume normal
distributions. The Kruskal-Wallis test would be the start of a non-parametric
approach.


Tim

-----Original Message-----
From: R-help <r-help-bounces at r-project.org> On Behalf Of RIDDHI BABEL
via R-help
Sent: Wednesday, May 3, 2023 11:42 AM
To: r-help at r-project.org
Subject: [R] Question about implementing statistical test in R

[External Email]

Hi,

I am a new user and have a stats question that I need help implementing in R.

I have 4 groups and I want to assess whether there is a statistical difference
between these groups at baseline first in a global comparison test and then a
pairwise comparison test.

There are about 2 continuous variables and 10 categorical variables

For the group wise comparison for continuous variables-I am using the Mann
Whitney test

For the categorical variables-I am using either chi square or Fisher exact test
for both global comparison and pairwise comparison.

What packages should I use to implement this in R? Is there any example code
that I use? I was thinking tbl_summary but don't think that's the right
one.

Would really appreciate any help with this!

Thank you!

        [[alternative HTML version deleted]]

______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.r-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.