bartlett's test: warning message

General
1

Hi
I would like to see whether my data is suitable for principal commpent analysis or not. For this purpose, I am using following three criteria: Bartlett's test, KMO (Kaiser-Meyer-Olkin) and Determinnant. KMO and
Determinnant tests are OK.

But when I run Bartlett's test using following R command I get warning message.
cortest.bartlett(df), where df is a data frame

The warning messages are:

$chisq [1]
NaN
$p.value [1] NaN

In log(detR) : NaNs produced

My undrestating is that when R is trying to take a log of determinant of correlation matrix of a data frame, when it encounters negative values then this type of warning messages are produced.
Could any suggest how to fix this issue please.
Regards
Abdur

2

Hi Abdur,
You will need to provide at least some of your data plus code in a reproducible example (reprex) so that Forum members can recreate the error you encountered and then suggest a solution.
See https://www.tidyverse.org/help/

3

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