Create `Copy Number Array' Data Object error
1
0
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El • 0
@el-24188
Last seen 3.9 years ago

I was running this function

CNA <- function(genomdat, chrom, maploc, data.type=c("logratio","binary"),
                sampleid=NULL, presorted=FALSE)
{
  if (is.data.frame(genomdat)) genomdat <- as.matrix(genomdat)
  if (!is.numeric(genomdat)) stop("genomdat must be numeric")
  if (!is.numeric(maploc)) stop("maploc must be numeric")
  data.type <- match.arg(data.type)
  ina <- (!is.na(chrom) & is.finite(maploc))
  if (sum(!ina)>0)
    warning("markers with missing chrom and/or maploc removed\n")
  if (!presorted) {
    sortindex <- which(ina)[order(chrom[ina], maploc[ina])]
  } else {
    sortindex <- which(ina)
  }
  if (is.factor(chrom)) chrom <- as.character(chrom)
  # added to allow arrays of single dimension - results from data.frame ops
  if (is.array(genomdat)) {
    if (length(dim(genomdat)) == 1) {
      genomdat <- as.matrix(genomdat)
    }
  }
  if (is.vector(genomdat)) genomdat <- as.matrix(genomdat)
  if (!missing(sampleid)) {
    if (length(sampleid) != ncol(genomdat)) {
      warning("length(sampleid) and ncol(genomdat) differ, names ignored\n")
      sampleid <- paste("Sample", 1:ncol(genomdat))
    } 
  } else {
    sampleid <- paste("Sample", 1:ncol(genomdat))
  }
  colnames(genomdat) <- sampleid
  zzz <- data.frame(chrom=I(chrom), maploc=maploc, genomdat)
  zzz <- zzz[sortindex,]

  # check for duplicate probes (i.e. repeated maploc within a chromosome)
  if (length(ii <- which(diff(maploc)==0)) > 0) {
    if (any(chrom[ii]==chrom[ii+1])) warning("array has repeated maploc positions\n")
  }

  attr(zzz, "data.type") <- data.type
  class(zzz) <- c("CNA","data.frame")
  zzz
}

# Lead the RDocumentaion packages
library(RDocumentation)

readfile <- function(file=NULL,header=TRUE,use.value.labels=TRUE,to.data.frame=TRUE,sep=",",
                      widths=rep(1,36),f=NULL, filetype=NULL,...)


cn <- readfile("/Users/mac/Desktop/NGS-/ERR439247-pe.wig",header=TRUE)



CNA.object <-CNA( genomdat = cn[1,36], chrom = cn[1,36], maploc = cn[1,36], data.type = 'logratio',sampleid = "E47") ## cn[1,36]`

and I get "genomdat must be numeric"

"Error in cn[1, 36] : incorrect number of dimensions
Called from: is.data.frame(genomdat)" 

how should I fix it thanks after all

DNAcopy • 1.7k views
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Kevin Blighe ★ 4.0k
@kevin
Last seen 2 days ago
Republic of Ireland

What is the output of str(cn) and str(cn[1,36])?

I am neither confident that you are running the CNA function correctly. Can you check the documentation? - https://www.rdocumentation.org/packages/DNAcopy/versions/1.46.0/topics/CNA

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i get list of 1 $ ch: chr(0)

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So, it's empty?

Can you please re-check:

  1. all previous steps prior to CNA()
  2. the correct syntax for running CNA() (via https://www.rdocumentation.org/packages/DNAcopy/versions/1.46.0/topics/CNA)

If it helps, please first follow the manual of DNAcopy and / or the vignette, so that you can be sure how to first successfully run the package with the authors' test data. For example, there is some useful code to test here: https://bioconductor.org/packages/release/bioc/vignettes/DNAcopy/inst/doc/DNAcopy.pdf

Kevin

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I was running the following command: (DNAcopy)

data <- function(..., list = character(), package = NULL, lib.loc = NULL,
     verbose = getOption("verbose"), envir = .GlobalEnv,
     overwrite = TRUE)

data(correct_copy)

CNA.object <- CNA(cbind(correct_copy$correct_copy.E47),
                  correct_copy$Chromosome,correct_copy$Position,
                  data.type="logratio",sampleid=c("cE47"))

and I got Error in CNA(cbind(correct_copy$correct_copy.E47), correct_copy$Chromosome,  : 
  genomdat must be numeric
Called from: CNA(cbind(correct_copy$correct_copy.E47), correct_copy$Chromosome, 
    correct_copy$Position, data.type = "logratio", sampleid = c("cE47"))

how should I fix it Thank you for all

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Please confirm that you have successfully completed the example(s) in the manual for this package.

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please, one question ? I have used the output of correctReadCount of HMMcopy like an input of DNAcopy, it's gonna workable, I got some modification like convert the data.table to data frame.....

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As you fail to answer my simple questions, I cannot help you anymore.

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thank you

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hello Mr Kevin I hope you doing good, I got a file " 1106 observations of 11 variable " is output corrected read's HMMcopy package, for leading to CNV I need segmentation step for my data, I was trying to get it input of DNA copy but it didn't work, if someone can help with getting over thank you so much

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Sorry, I had asked you twice already if you had successfully completed the examples in the manual? - https://www.rdocumentation.org/packages/DNAcopy/versions/1.46.0/topics/CNA

By successfully completing these steps, it will help you to understand how the package functions work.

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thank you so much it's gonna help, and thank you for your time Mr

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