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EchidnaMMS

Echidna is software targeted for use in animal and plant breeding contexts.

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Latest News

  • Echidna Build 2.05 Feb 23 2026
  • Echidna Build 2.04 Feb 19 2026
  • Echidna Build 2.03 Oct 29 2025
  • Echidna Build 2.02 Oct 24 2025
  • Echidna Build 2.01 Sep 18 2025

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Category: Uncategorized

  • 18/11/202218/11/2022
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November 18 2022 Build 1.70

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Fixed bug in R script generated with !RML qualifier. Use harveyESS=read.csv(“harvey.ess”,header=T,strip.white=T) to read in the .ess file.

Continue Reading November 18 2022 Build 1.70
  • 10/11/2022
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November 9, 2022; Build 1.69

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HANDLE SOME LARGE PREDICTS BETTERVarious bug fixes

Continue Reading November 9, 2022; Build 1.69
  • 18/10/202218/10/2022
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October 18, 2022; Build 1.68

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Fixed bug fitting multivariate model when no records have all traits present.Added !AISING qualifier to better manage singularities n the AI matrix. Thank-you to those users who find issues with Echidna and let me know. Arthur

Continue Reading October 18, 2022; Build 1.68
  • 10/10/202210/10/2022
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October 10, 2022; Build 1.67

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Fixed bug limiting pedigree to 400000 individualsAdd !SGIV qualifier to PEDIGREE file line

Continue Reading October 10, 2022; Build 1.67
  • 29/09/202229/09/2022
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September 29, 2022; Build 1.66

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Fixed serious bug calculating the Residual Score in multivariate models when missing value pattern differs among traits.Fixed issue of some jobs failing with Factor !I factor type Fixed issue parsing at(Tr,2).( A -B)Added new sparse binary .sgiv input option

Continue Reading September 29, 2022; Build 1.66
  • 25/08/202225/08/2022
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August 25, 2022; Build 1.65

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Fixed issue with Factor !A !L names.txtFixed issues with .xml files

Continue Reading August 25, 2022; Build 1.65
  • 03/08/202203/08/2022
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August 3, 2022; Build 1.64

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Refined plot of RvE for binary dataAdded !HINV qualifier to merge a Genomic relationship matrix with a Numerator relationship matrix to form Hinverse. Various bug fixes

Continue Reading August 3, 2022; Build 1.64
  • 30/06/202230/06/2022
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Echidna 1.63, 30 June 2022

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More components allowed in VPREDICT Fixed bug (crash( reporting long integer class names in PREDICTAdded ANTE variance structure . ante1(access) as R and GSome changes to STEPSZ and SLOW tuning have slightly modified some convergence sequences. Added ar1h(access) as R and GFixed ante1(access $VarG) where […]

Continue Reading Echidna 1.63, 30 June 2022
  • 22/03/202222/03/2022
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March 22 2022; Build 1.62

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Added PREDICT … !CONTRAST coeffs to facilitate testing treatment contrasts Small Speed up of SCORE calculation in bivariate analysis Fixed bug reporting solutions in 1.61

Continue Reading March 22 2022; Build 1.62
  • 08/03/202208/03/2022
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March 8 2022; Build 1.61

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Fixed bug parsing a long (>200characters) !ASSIGN listFixed bug associated with settng specific variances to zero.Added !NCZ qualifier to !MBF as alternative to setting columns in function 2nd argument. If you are not at least using build 1.60, update now.

Continue Reading March 8 2022; Build 1.61

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Latest News

  • Echidna Build 2.05 Feb 23 2026
  • Echidna Build 2.04 Feb 19 2026
  • Echidna Build 2.03 Oct 29 2025
  • Echidna Build 2.02 Oct 24 2025
  • Echidna Build 2.01 Sep 18 2025

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