test for continous variables

[RunyuXia]

Hello,
I'm trying to test for a continuous variable using PyDESeq, with it being the only variable in my design matrix. I found a suggestion in previous issues to set the contrast in DeseqStats as contrast = ["my_continuous_covariate", "", ""]. However, when I implemented this, I encountered the following error. Could someone help me troubleshoot this issue?
Thank you!

[BorisMuzellec]

Hi @RunyuXia, are you using the 0.5.0 version of pydeseq2?

If so, contrasts for continuous variables should be directly provided as a numerical contrast vector, with a coefficient (usually 0, 1 or -1) for each column of the design matrix (something like contrast = np.array([0, 0, 1]) where the 1 is at the index of your numerical column).

cf https://pydeseq2.readthedocs.io/en/latest/auto_examples/plot_step_by_step.html#statistical-analysis