Sir, I have a question, how to know, when to use correlation and when to use regression coefficient. Because this example is similar to the previous one parent offspring regression. Please answer sir.
You can use any of them (correlation or regression). There's no strict rule for the use of a particular method. Regression and correlation both tell us how much phenotypically similar closely related individuals are. For example, if you're using correlation between one parent and offspring to estimate heritability, then you have to multiply correlation coefficient with 2 to know the exact value of heritability. The case of regression of offspring on one parent is also similar to this as offspring is 50% similar to one parent. So you also have to multiply the value of beta (b) with 2 to calculate the exact value of heritability. These methods are very basic for understanding of students at undergraduate level. The highly advanced and most reliable method to calculate heritability is by using the REML (Restricted Maximum Likelihood Procedures) procedures of WOMBAT, ASREML or BLUPF90 software. For more details you can read the following article: www.researchgate.net/publication/5873674_WOMBAT_-_A_tool_for_mixed_model_analyses_in_quantitative_genetics_by_REML
@@AnimalSciences thank you so much sir, for your generous reply. I have another query sir, "How to know if my data shows half sibs or full sibs? I am totally confused, is there any easy way to find out? " Thank you in advance.
Great work Sir G
Thank you
Sir, I have a question, how to know, when to use correlation and when to use regression coefficient. Because this example is similar to the previous one parent offspring regression. Please answer sir.
You can use any of them (correlation or regression). There's no strict rule for the use of a particular method. Regression and correlation both tell us how much phenotypically similar closely related individuals are.
For example, if you're using correlation between one parent and offspring to estimate heritability, then you have to multiply correlation coefficient with 2 to know the exact value of heritability. The case of regression of offspring on one parent is also similar to this as offspring is 50% similar to one parent. So you also have to multiply the value of beta (b) with 2 to calculate the exact value of heritability. These methods are very basic for understanding of students at undergraduate level.
The highly advanced and most reliable method to calculate heritability is by using the REML (Restricted Maximum Likelihood Procedures) procedures of WOMBAT, ASREML or BLUPF90 software.
For more details you can read the following article: www.researchgate.net/publication/5873674_WOMBAT_-_A_tool_for_mixed_model_analyses_in_quantitative_genetics_by_REML
@@AnimalSciences thank you so much sir, for your generous reply.
I have another query sir, "How to know if my data shows half sibs or full sibs? I am totally confused, is there any easy way to find out? "
Thank you in advance.
👌👍
Thank you
I need help please
Hi Aya. What type of help do you need?