topic Understanding the PCA Plot from JMP in SAS Programming https://communities.sas.com/t5/SAS-Programming/Understanding-the-PCA-Plot-from-JMP/m-p/167105#M300801 <HTML><HEAD></HEAD><BODY><P>Hi All,</P><P>I am little confused understanding the PCA plot generated from JMP. In the plot below, products in the top-right quadrant are correlated positively, i.e. if one of them increases, all other increase ('am I right ?). What about the products in the lower-right quadrant and the upper left quadrant.</P><P></P><P>Thanks for your help</P><P>Cheers</P><P><IMG alt="horloge.jpg" class="jive-image-thumbnail jive-image" src="https://communities.sas.com/legacyfs/online/6776_horloge.jpg" width="450" /></P></BODY></HTML> Fri, 04 Jul 2014 21:29:01 GMT Koppole 2014-07-04T21:29:01Z Understanding the PCA Plot from JMP https://communities.sas.com/t5/SAS-Programming/Understanding-the-PCA-Plot-from-JMP/m-p/167105#M300801 <HTML><HEAD></HEAD><BODY><P>Hi All,</P><P>I am little confused understanding the PCA plot generated from JMP. In the plot below, products in the top-right quadrant are correlated positively, i.e. if one of them increases, all other increase ('am I right ?). What about the products in the lower-right quadrant and the upper left quadrant.</P><P></P><P>Thanks for your help</P><P>Cheers</P><P><IMG alt="horloge.jpg" class="jive-image-thumbnail jive-image" src="https://communities.sas.com/legacyfs/online/6776_horloge.jpg" width="450" /></P></BODY></HTML> Fri, 04 Jul 2014 21:29:01 GMT https://communities.sas.com/t5/SAS-Programming/Understanding-the-PCA-Plot-from-JMP/m-p/167105#M300801 Koppole 2014-07-04T21:29:01Z Re: Understanding the PCA Plot from JMP https://communities.sas.com/t5/SAS-Programming/Understanding-the-PCA-Plot-from-JMP/m-p/167106#M300802 <HTML><HEAD></HEAD><BODY><P>I think this is loadings plot graph which indicates correlation between the variables and the components. The closer the value is to 1 the greater the effect of the component on the variable.</P></BODY></HTML> Fri, 04 Jul 2014 22:44:53 GMT https://communities.sas.com/t5/SAS-Programming/Understanding-the-PCA-Plot-from-JMP/m-p/167106#M300802 stat_sas 2014-07-04T22:44:53Z