Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • zhanxw
    Junior Member
    • Jun 2009
    • 7

    BFAST index, not understand warnings

    Hello,

    I want to created index files in color space from NCBI build 36 in color space.
    Here is my command
    `which time` bfast index -f NCBI36.fa -n 8 -w 14 -i 1 -A 1 -m 1111111111111111111111

    Then I got warning like "startContig was less than zero.", "endContig was greater than the number of contigs in the reference genome.". But I am sure I am using the same FASTA reference genome file. So is there anything I should do for these warnings? And is anyone have experience about how long it takes to build this index file?

    Part of the outputs:
    ------------------------------------------------------
    Checking input parameters supplied by the user ...
    Validating fastaFileName NCBI36.fa.
    Validating tmpDir path ./.
    Input arguments look good!
    ************************************************************
    ************************************************************
    Printing Program Parameters:
    programMode: [ExecuteProgram]
    fastaFileName: NCBI36.fa
    space: [Color Space]
    mask: 1111111111111111111111
    depth: 0
    hashWidth: 14
    indexNumber: 1
    repeatMasker: [Not Using]
    startContig: 0
    startPos: 0
    endContig: 2147483647
    endPos: 2147483647
    exonsFileName: [Not Using]
    numThreads: 8
    tmpDir: ./
    timing: [Not Using]
    ************************************************************
    ************************************************************
    Reading in reference genome from NCBI36.fa.cs.brg.
    In total read 23 contigs for a total of 3022646526 bases
    ************************************************************
    Creating the index...
    ************************************************************
    Warning: startContig was less than zero.
    Defaulting to contig=1 and position=1.
    ************************************************************
    ************************************************************
    Warning: endContig was greater than the number of contigs in the reference genome.
    Defaulting to reference genome's end contig=23 and position=154913754.
    ************************************************************
    Currently on [contig,pos]:
    [-------4,---27000000]

    ------------------------------------------------------
  • nilshomer
    Nils Homer
    • Nov 2008
    • 1283

    #2
    Originally posted by zhanxw View Post
    Hello,

    I want to created index files in color space from NCBI build 36 in color space.
    Here is my command
    `which time` bfast index -f NCBI36.fa -n 8 -w 14 -i 1 -A 1 -m 1111111111111111111111

    Then I got warning like "startContig was less than zero.", "endContig was greater than the number of contigs in the reference genome.". But I am sure I am using the same FASTA reference genome file. So is there anything I should do for these warnings? And is anyone have experience about how long it takes to build this index file?

    Part of the outputs:
    ------------------------------------------------------
    Checking input parameters supplied by the user ...
    Validating fastaFileName NCBI36.fa.
    Validating tmpDir path ./.
    Input arguments look good!
    ************************************************************
    ************************************************************
    Printing Program Parameters:
    programMode: [ExecuteProgram]
    fastaFileName: NCBI36.fa
    space: [Color Space]
    mask: 1111111111111111111111
    depth: 0
    hashWidth: 14
    indexNumber: 1
    repeatMasker: [Not Using]
    startContig: 0
    startPos: 0
    endContig: 2147483647
    endPos: 2147483647
    exonsFileName: [Not Using]
    numThreads: 8
    tmpDir: ./
    timing: [Not Using]
    ************************************************************
    ************************************************************
    Reading in reference genome from NCBI36.fa.cs.brg.
    In total read 23 contigs for a total of 3022646526 bases
    ************************************************************
    Creating the index...
    ************************************************************
    Warning: startContig was less than zero.
    Defaulting to contig=1 and position=1.
    ************************************************************
    ************************************************************
    Warning: endContig was greater than the number of contigs in the reference genome.
    Defaulting to reference genome's end contig=23 and position=154913754.
    ************************************************************
    Currently on [contig,pos]:
    [-------4,---27000000]

    ------------------------------------------------------
    You can ignore the warnings if you didn't specify the "-s" or "-e" options. Each index takes about 4-5 hours to build (8 threads).

    Comment

    Latest Articles

    Collapse

    • SEQadmin2
      From Collection to Sequencing: Why Sample Preparation and Preservation Define Sequencing Data
      by SEQadmin2


      Data variability is still an issue in sequencing technologies despite the advances in reproducibility and accuracy of these platforms. But the problem does not originate in the sequencing itself, but in the previous steps, before the sample reaches the sequencer.


      The first step is collection, followed by preservation and sample preparation for analysis. Most scientists overlook those steps, but not being careful might just be skewing the experiment’s results.
      ...
      06-02-2026, 10:05 AM
    • SEQadmin2
      Single-Cell Sequencing at an Inflection Point: Early Impacts of New Platforms and Emerging Trends
      by SEQadmin2


      With the launch of new single-cell sequencing platforms in 2026, the field stands at an exciting inflection point. This article surveys the most impactful advances in the field and discusses how they’re reshaping research in cancer, immunology, and beyond.


      Introduction

      Single-cell sequencing technologies have undergone remarkable advances over the past decade, transitioning from low-throughput experimental approaches to highly scalable platforms capable of...
      05-22-2026, 06:42 AM
    • SEQadmin2
      Environmental Genomics in the Age of NGS: From Microbes to Conservation Strategies
      by SEQadmin2

      Studying ecosystems means dealing with complex, multi-species communities that are hard to observe at scale. This complexity, however, hides many important questions to be answered, from how biogeochemical cycles work and how climate change can affect species distribution to how conservation strategies can work best.


      Genomics, particularly since the expansion of NGS, has transformed ecosystem ecology. By sequencing environmental DNA, we can now assess biodiversity without direct...
      05-06-2026, 09:04 AM

    ad_right_rmr

    Collapse

    News

    Collapse

    Topics Statistics Last Post
    Started by SEQadmin2, 06-02-2026, 12:03 PM
    0 responses
    21 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 06-02-2026, 11:40 AM
    0 responses
    14 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 05-28-2026, 11:40 AM
    0 responses
    29 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 05-26-2026, 10:12 AM
    0 responses
    31 views
    0 reactions
    Last Post SEQadmin2  
    Working...