dgCMatrix error smoothData

[dpschreiner]

in this smoothData call

cellchat <- CellChat::smoothData(cellchat, PPI.mouse)

i'm getting this error:

Error: ==(<dgCMatrix>, <character>) is not yet implemented; ask maintainer("Matrix") to implement the missing method

my Matrix version is 1.7.3, with R 4.4.1.

i guess this error comes from this line in utilities.R:

stopifnot(is(adj, 'matrix') | is(adj, 'sparseMatrix'))

the class of adj is checked and fails, even though PPI.mouse is an object from CellChat itself.

[dpschreiner]

CellChat version 2.2.0

[jcd-gh]

I had a similar problem and I solved it with this: (See issue #185 for further information) Try cellchat <- CellChat::smoothData(cellchat, adj = PPI.mouse) The "adj = " is needed. It is must be specified.