Starting from an Anndata object

[yitengfei120011]

Starting from an Anndata object

library(anndata)
ad <- read_h5ad("integration_cellType.h5ad")
normalized_data <- t(as.matrix(ad$X))
library(Matrix)
data.input <- as(normalized_data, "dgCMatrix")

Error in .m2sparse(from, "dgC"): attempt to construct sparseMatrix with more than 2^31-1 nonzero entries
Traceback:

1. asMethod(object)
2. .m2sparse(from, "dgC")
3. .handleSimpleError(function (cnd)
   . {
   . watcher$capture_plot_and_output()
   . cnd <- sanitize_call(cnd)
   . watcher$push(cnd)
   . switch(on_error, continue = invokeRestart("eval_continue"),
   . stop = invokeRestart("eval_stop"), error = NULL)
   . }, "attempt to construct sparseMatrix with more than 2^31-1 nonzero entries",
   . base::quote(.m2sparse(from, "dgC")))

When I run data.input <- as(normalized_data, "dgCMatrix"), the following error occurs. How can I solve it?