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Factor Analysis in Excel
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Factor AnalysisIdentify 3 factors
Variables X1 SeedsX2 fertilizerX3 managementX4 PesticideX5 waterX6 cost
DataScore given X1 X2 X3
1 6 8 92 4 4 63 4 1 64 1 2 65 4 3 56 4 4 67 3 3 08 7 7 69 5 3 1
10 5 4 2
Correlation MatrixX1 X2 X3
X1 1.000 0.742 0.168Correlation Matrix X2 0.742 1.000 0.424
X3 0.168 0.424 1.000X4 0.496 0.568 0.050X5 0.484 0.474 0.238X6 -0.430 -0.204 0.092
Correlation without negative signX1 X2 X3
X1 1.000 0.742 0.168Correlation without negative sign X2 0.742 1.000 0.424
X3 0.168 0.424 1.000X4 0.496 0.568 0.050X5 0.484 0.474 0.238X6 0.430 0.204 0.092
Total(T) 3.320 3.412 1.972
Square root of T = 3.97Loading
S UL = S /sqrt (T)
X1 3.320 0.835614Sum X S and L X2 3.412 0.858823
X3 1.972 0.496434X4 2.599 0.654224X5 2.523 0.634953X6 1.959 0.493121
Cross Product MatrixX1 X2 X3
X1 0.698 0.718 0.415X2 0.718 0.738 0.426X3 0.415 0.426 0.246X4 0.547 0.562 0.325X5 0.531 0.545 0.315X6 -0.412 -0.424 -0.245
Residual matrixX1 X2 X3
X1 0.302 0.024 -0.247X2 0.024 0.262 -0.002X3 -0.247 -0.002 0.754X4 -0.051 0.006 -0.274X5 -0.046 -0.071 -0.077X6 -0.018 0.219 0.337
Residual Matrix without negative signX1 X2 X3
X1 0.302 0.024 0.247X2 0.024 0.262 0.002X3 0.247 0.002 0.754X4 0.051 0.006 0.274X5 0.046 0.071 0.077X6 0.018 0.219 0.337
Total(T) 0.689 0.585 1.691
Square root of T = 2.82LoadingS UL = S /sqrt (T)
X1 0.689 0.243816X2 0.585 0.207222X3 1.691 0.598745X4 1.547 0.547815X5 1.267 0.448518
X6 2.199 0.778573
Cross Product MatrixX1 X2 X3
X1 0.059 0.051 -0.146X2 0.051 0.043 -0.124X3 -0.146 -0.124 0.358X4 -0.134 -0.114 0.328X5 -0.109 -0.093 0.269X6 -0.190 -0.161 0.466
Residual Matrix X1 X2 X3
X1 0.242 -0.026 -0.101X2 -0.026 0.219 0.122X3 -0.101 0.122 0.395X4 0.083 0.119 -0.602X5 0.063 0.022 -0.346X6 0.172 0.380 -0.129
Residual Matrix without negative signX1 X2 X3
X1 0.242 0.026 0.101X2 0.026 0.219 0.122X3 0.101 0.122 0.395X4 0.083 0.119 0.602X5 0.063 0.022 0.346X6 0.172 0.380 0.129
Total(T) 0.687 0.889 1.695
Square root of T = 2.63LoadingS UL = S /sqrt (T)
X1 0.687 0.260752X2 0.889 0.33751X3 1.695 0.643763X4 1.540 0.584777X5 1.198 0.454952X6 0.925 0.351196
Factor-1 Factor-2 Factor-3highest in row X1 0.836 0.244 0.261
X2 0.859 0.207 0.338X3 0.496 -0.599 -0.644X4 0.654 -0.548 -0.585X5 0.635 -0.449 -0.455X6 -0.493 -0.779 -0.351
Eighen value 2.757 1.568 1.2690.698 0.059 0.0680.738 0.043 0.1140.246 0.358 0.4140.428 0.300 0.3420.403 0.201 0.2070.243 0.606 0.123
Proportion of total variance 0.459 0.261 0.211
Proportion of common variance 0.493 0.280 0.227
X1 SeedsX2 fertilizer ………X4 PesticideX5 water
X6 cost ……….
X3 management …………..
X4 X5 X69 1 28 2 15 1 23 2 35 2 38 2 39 1 39 9 28 1 23 1 0
WeightX4 X5 X60.496 0.484 -0.430 1.0000.568 0.474 -0.204 1.0000.050 0.238 0.092 1.0001.000 0.290 0.196 1.0000.290 1.000 0.037 1.0000.196 0.037 1.000 -1.000
Correlation without negative signX4 X5 X60.496 0.484 0.4300.568 0.474 0.2040.050 0.238 0.0921.000 0.290 0.1960.290 1.000 0.0370.196 0.037 1.000
2.599 2.523 1.959 15.786
L
0.8356140.8588230.4964340.6542240.634953
-0.493121 becasue weight is negative
X4 X5 X60.547 0.531 -0.4120.562 0.545 -0.4240.325 0.315 -0.2450.428 0.415 -0.3230.415 0.403 -0.313
-0.323 -0.313 0.243
X4 X5 X6-0.051 -0.046 -0.0180.006 -0.071 0.219
-0.274 -0.077 0.3370.572 -0.126 0.519
-0.126 0.597 0.3500.519 0.350 0.757
Residual Matrix without negative signX4 X5 X60.051 0.046 0.0180.006 0.071 0.2190.274 0.077 0.3370.572 0.126 0.5190.126 0.597 0.3500.519 0.350 0.757
1.547 1.267 2.199 7.979
L0.2438160.207222
-0.598745-0.547815-0.448518
-0.778573
X4 X5 X6-0.134 -0.109 -0.190-0.114 -0.093 -0.1610.328 0.269 0.4660.300 0.246 0.4270.246 0.201 0.3490.427 0.349 0.606
X4 X5 X60.083 0.063 0.1720.119 0.022 0.380
-0.602 -0.346 -0.1290.272 -0.371 0.092
-0.371 0.396 0.0010.092 0.001 0.151
Residual Matrix without negative signX4 X5 X60.083 0.063 0.1720.119 0.022 0.3800.602 0.346 0.1290.272 0.371 0.0920.371 0.396 0.0010.092 0.001 0.151
1.540 1.198 0.925 6.932
L0.2610.338
-0.644-0.585-0.455-0.351
community h20.826 0.698 0.059 0.068
0.894 0.738 0.043 0.1141.019 0.246 0.358 0.4141.070 0.428 0.300 0.3420.811 0.403 0.201 0.2070.973 0.243 0.606 0.1235.594
High variance with factor 1
Medium variance with factor 2
Low variance with factor 3