Yogesh Gupta
2017-Jun-22 08:22 UTC
[R] Getting error in dendogram based on gene expression
Dear All, I am trying to make dendogram based on gene expression matrix , but getting some error: I countMatrix = read.table("count.row.txt",header=T,sep='\t',check.names=F) colnames(countMatrix) count_matrix <- countMatrix[,-1] # remove first column (gene names) rownames(count_matrix) <- countMatrix[,1] #added first column gene names as rownames)> nonzero_row <- count_matrix[rowSums(count_matrix) > 0, # removed row sum0 across all sample> x1= as.matrix(nonzero_row) # converted data into matrix> x=log2(x1+1) # converted intolog value> d <- dist(x, method="euclidean")> h <- hclust(d, method="complete")*Error:* *** caught segfault *** address 0x7fa39060af28, cause 'memory not mapped' Traceback: 1: hclust(d, method = "complete") Possible actions: 1: abort (with core dump, if enabled) 2: normal R exit 3: exit R without saving workspace 4: exit R saving workspace Selection: Thanks Yogesh -- *Yogesh Gupta* *Postdoctoral Researcher* *Department of Biological Science* *Seoul National University* *Seoul, South Korea* [[alternative HTML version deleted]]