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EchidnaMMS

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

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  • Echidna Build 2.05 Feb 23 2026
  • Echidna Build 2.04 Feb 19 2026
  • Echidna Build 2.03 Oct 29 2025
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Category: Uncategorized

  • 20/01/202120/01/2021
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Jan 20 2021; Update 1.40

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Now handles herd.ar1v(td) where td has many levels,idv(herd).ar1(td) is equivalent and works.Fixed some bugs when using grouped variables; some functions accessed the wrong data variable

Continue Reading Jan 20 2021; Update 1.40
  • 14/01/202114/01/2021
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Jan 14 2021; Update 1.39

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Fixed bugs handling residual sat(env).units.diag(Trait,$Ve) Thanks for continuing to work with Echidna. Thankyou to those who have reported issues for me to fix Best wishes for your journey with the Lord Jesus in 2021. He is near to all who call on Him. Arthur

Continue Reading Jan 14 2021; Update 1.39
  • 22/12/202022/12/2020
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Dec 21 2020; Update 1.38

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Fixed bug In cycle mode, accumulate to ESS, ESY, ESX, ETB, EPV, EVC etcFiddle ASReml equation ordering routine (!EQN 7)Fixed Bug in ALPHA labels space allocationFixed Bug reporting some errors I wish you all the best for Christmas and the New Year. Jesus came as […]

Continue Reading Dec 21 2020; Update 1.38
  • 10/12/202010/12/2020
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Dec 11, 2020; Update 1.37

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Update the ASReml equation ordering routine (!EQN 7)Fix case of xfa(a).b when a has more levels than bCheck the Resources TAB for new material you might like to read.

Continue Reading Dec 11, 2020; Update 1.37
  • 21/11/202021/11/2020
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Nov 21, 2020; Update 1.36

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Various BUG fixes (14 routines) Speed up absorption of working variable cross products when forming AI matrix basic mbf() design function added

Continue Reading Nov 21, 2020; Update 1.36
  • 06/11/202006/11/2020
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Nov 06, 2020; Update 1.35

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Fix scale in Legendre polynomial coefficientsReport potential issue if grid sorting variables are not simple factors

Continue Reading Nov 06, 2020; Update 1.35
  • 21/10/202021/10/2020
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Oct 21, 2020; Update 134

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Fix bug reporting PREDICT values for a covariateFaster absorb step in some very large modelsFix conversion of var(loadings) from Gamma to Sigma scale (VPREDICT)Allow at(Rep,0) as alternative to zero and zero(1) in the modelWarn if GRM nearly singular.Bug getting Score for GDENSE Sparse stored GIV

Continue Reading Oct 21, 2020; Update 134
  • 01/10/202001/10/2020
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Oct 28, 2020; Update 1.33

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Fix conversion of var(loadings) from Gamma to Sigma scale (VPREDICT)Allow at(Rep,0) as alternative to zero and zero(1) in the modelWarn if GRM nearly singular.

Continue Reading Oct 28, 2020; Update 1.33
  • 26/09/202026/09/2020
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Sept 26, 2020; Update 1.32

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Fixed bug in calculating covariances among variance components estimated on GAMMA scale which was affecting VPREDICT calculations. Thanks to all who report issues they detect, especially comparing results with those from ASReml.

Continue Reading Sept 26, 2020; Update 1.32
  • 18/09/202018/09/2020
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Sept 17, 2020; Update 1.31

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coruh() variance structure implemented

Continue Reading Sept 17, 2020; Update 1.31

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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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