Hi I had a question sent and was interested and hoped somebody could direct me to the relevant article and software etc. Suppose I have a dependent variable and a set of independent X1, X2, X3, X4 (could be more). X1 takes on specific values e.g., 2,4, 6, 8 ppm (concentration values). X2 takes on specific values such as temperature to nearest 5 degrees (say 40, 45,60) etc. X3 specific and X4 specific.
Suppose I have all readings / combinations except for example the X2 = 4 and X2 = 50 readings (i.e., blocks of information missing). How can I best estimate these missing values? Thanks Ling Ling Huang SCC http://huangl.webs.com
