undefined variables are used in the vignette

[vmedaert]

differentiated_celltype, progenitor_cell and niche_celltypes were never defined in the vignette

nichenet_protocol/R/procedure_code.Rmd

Lines 862 to 868 in 0e4c959

	nichenet_seuratobj_cluster_de(
	seurat_obj = seurat_obj,
	receiver_affected = differentiated_celltype,
	receiver_reference = progenitor_cell,
	sender = niche_celltypes,
	ligand_target_matrix, lr_network,
	weighted_networks)