Displaying 2 results from an estimated 2 matches for "p2_a".
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2_a
2007 Nov 30
1
Help with tables
...em in developing a table. In a questionaire I made I ask this
question "Please tell me the first three sympthoms caused by Respiratory
tract infection you've caught this year", then the people answer three
sympthoms, the first mention (Top of mind) is saved in a variable called
"P2_A", the second mention in a variable called "P2_B" and the third mention
in "P2_C". Each answer is coded with numbers like this:
1 = Flu
2 = Cough
3 = Asthma
....
13 = Fever
I've already done a K-cluster analysis and segmented my data base. So my
first task is to dev...
2008 Mar 06
0
Help with colinearity problem in multiple linear regression
...quot;, "Assault", "Rape",
"Introduced")]))
P1_A = t(P1_X) %*% P1_X
P1_b = t(P1_X) %*% P1[,"Murder"]
# Partition 2 - calculated on host 2
P2_X = as.matrix(cbind(1, P2[,c("UrbanPop", "Assault", "Rape",
"Introduced")]))
P2_A = t(P2_X) %*% P2_X
P2_b = t(P2_X) %*% P2[,"Murder"]
# repeat for partitions 3:N
# ...
# collect data from the all the partitions, this is the key for
# the parallelism technique, I don't know how to do this step if
# I was somehow doing QR decomposition.
A = P1_A + P2_A # ......