Data file nc6oa Txt consists of 6830 gene expression data from 33 cancer cell lines, each of which is a type of cancer cell. Please cluster the 33 cell lines according to the gene expression data (the

Data files nc6oa.txt from 33 A cancer cell line 6830 Gene expression data constitute , Every cell line is a type of cancer cell . Please pair according to the gene expression data 33 Cell lines were clustered ( Cluster classification is the number of cancer cell types , Like breast cancer 、 Lung cancer 、 Renal carcinoma 、 Colon cancer 、 leukemia 、 Egg cancer, etc ), Please also explain why these categories are clustered ?( Build your own Word file , First write the program and its results , The results of the analysis , Finally, upload it as an attachment word file

data <- read.table("nci604.txt")

Because there are many columns , Yes 6830 individual , Therefore, it is suggested to do the first step PCA Dimensionality reduction

pca1<-prcomp(as.matrix(data)) 
summary(pca1