Error while running show.velocity.on.embedding.eu: argument is not a matrix

[CasiratiG]

Hi, I have a problem with the show.velocity.on.embedding.eu function: after running for a while, it will stop after the tracing shortest trajectories and clustering steps.

SAMPLE.rvel.eu.Seurat <- show.velocity.on.embedding.eu(emb = SAMPLE_umap, vel = SAMPLE.rvel.cd.Seurat, n = 50,  
                                   cell.colors = ac(SAMPLE_cell_colors_ordered, alpha=0.5), cex = 0.8, 
                                   nPcs = 30, show.trajectories = T, diffusion.steps = 500, scale ='sqrt',
                                   n.trajectory.clusters = 15, ntop.trajectories = 1, embedding.knn = T, 
                                   control.for.neighborhood.density = T, arrow.scale = 1, arrow.lwd = 1) 
sqrt scale ... reducing to 30 PCs ... distance ... sigma= 0.008  beta= 1  transition probs ... embedding kNN ... done.
 simulating diffusion ... constructing path graph ... tracing shortest trajectories ... clustering ...
 **Error in t.default(spuci) : argument is not a matrix**

Has this error occurred to others? Any solution?

Thanks session_info.xlsx

[yanwengong]

Hi! I got the same error. Could you let me know if you fix it?

Thanks a lot!!

[cohenp05]

I also have this error. Has anyone solved it?

Thanks!

[yanwengong]

I don't remember what I ended up doing. But I was using "show.velocity.on.embedding.cor" recently and it didn't through the error.

[mderan-da]

I'm also getting this same error. show.velocity.on.embedding.cor runs fine but show.velocity.on.embedding.eu fails every time with this error message. Has anyone gotten around this?

[GhobrialMoheb]

I am getting a similar error, any solutions ?

[mderan-da]

I am getting a similar error, any solutions ?

I don't think I ever got past this error. Sorry I can't help