Alpha Diversity Format Error

So I am trying to create my alpha and beta core metrics using the following command:

-bash-4.2$ qiime diversity core-metrics-phylogenetic --i-phylogeny Ant_rooted-tree.qza --i-table Antarctic_tabler2.qza --p-sampling-depth 1000 --m-metadata-file HG-metadata.tsv --output-dir Antarctic-alpha_beta-results

and I get the following error message:
Plugin error from diversity:

/tmp/q2-AlphaDiversityFormat-_dv5fltx is not a(n) AlphaDiversityFormat file

What does this mean and how do I fix it?


We see this happen when all of your samples (or, all but one?) are filtered out due to rarefaction. If you set the “even sampling depth” slider to 1000 in the feature-table summarize viz, how many samples remain?

I see what you are saying- I typed in 1000 and it gave me only 11% of my data, so that is probably one my issue. I was basing my sequencing depth number off my rarefaction curve that I had produced.

But I based my number on the maximum sequence coverage on the dada2 table but I still got the error message when I tried to create the core metrics:

tmp/q2-AlphaDiversityFormat-kqlgcdsq is not a(n) AlphaDiversityFormat file

How many samples are remaining at the selected even sampling depth?

I don’t expect this sample to be very diverse because of the type of sample but I saw 8666 samples. Which is basically 100% coverage of my data.

Sorry, let me clarify - how many samples remain in the feature table after rarefying (not how many sequences). Here is an example screenshot from the viz I referenced above:


In this example there are 28 samples remaining at the selected sampling depth of 1347.

This topic was automatically closed 31 days after the last reply. New replies are no longer allowed.