On May 7, 2012, at 3:26 PM, meredith wrote:
Afternoon-
I am trying to subtract a matrix, basically a vector of 28 values,
each by
the same number to account for differences in regression fitting. I am
taking the 1x28 and minus it by the mean value of the matrix, each
number.
The result I receive is a 1X29 matrix.
No. You simply do not understand what you are looking at that is NOT a
matrix, but rather a 34 element vector. The [28] and hte [29] refer to
the item location of the succeeding value.
--
David.
Does anyone know why the result has
an extra value?
lffeb_march
[1] 6.588926 7.663877 6.917706 6.824374 7.029973 6.549651 6.517671
6.070738
5.916202
[10] 6.993933 6.091310 7.313220 5.135798 6.762730 6.381816 7.999679
6.851185
5.799093
[19] 7.774856 6.956545 8.218787 8.218787 7.549609 7.222566 7.170120
6.173786
5.075174
[28] 4.700480 6.672033 5.198497 4.867534 7.170120 6.131226 6.802395
meanf_fm<-mean(lffeb_march)
X3_fm<-(lffeb_march-meanf_fm)
X3_fm
[1] -0.03784990 1.03710088 0.29092923 0.19759729 0.40319653
-0.07712564
-0.10910511
[8] -0.55603865 -0.71057432 0.36715660 -0.53546650 0.68644401
-1.49097794
0.13595313
[15] -0.24496036 1.37290220 0.22440855 -0.82768372 1.14807939
0.32976906
1.59201078
[22] 1.59201078 0.92283279 0.59578964 0.54334317 -0.45299027
-1.55160256
-1.92629601
[29] 0.04525657 -1.42827935 -1.75924193 0.54334317 -0.49554989
0.17561839
Thanks for the help
Meredith
--
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