Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.060036 -0.020441 -0.006064  0.004095  0.205524 

Coefficients:
             Estimate Std. Error t value Pr(>|t|)   
(Intercept)  0.092994   0.035721   2.603  0.00943 **
xAP         -0.065794   0.035785  -1.839  0.06641 . 
xAP-REG     -0.092991   0.043750  -2.126  0.03390 * 
xAP:LTS     -0.092949   0.050518  -1.840  0.06621 . 
xAP:P       -0.083580   0.050518  -1.654  0.09849 . 
xAP:REG     -0.076446   0.039131  -1.954  0.05116 . 
xAP:S       -0.055096   0.039131  -1.408  0.15959   
xDP         -0.084583   0.038188  -2.215  0.02710 * 
xDP:LTS     -0.081920   0.043750  -1.872  0.06157 . 
xDP:S       -0.031761   0.043750  -0.726  0.46811   
xDP/S       -0.024907   0.041248  -0.604  0.54615   
xLAW        -0.091736   0.035979  -2.550  0.01100 * 
xLAW:REG    -0.092238   0.039938  -2.310  0.02121 * 
xLTS        -0.089186   0.036458  -2.446  0.01469 * 
xNAPA        0.063813   0.050518   1.263  0.20696   
xNM         -0.043754   0.050518  -0.866  0.38674   
xP          -0.059618   0.036402  -1.638  0.10193   
xPNACC      -0.031503   0.050518  -0.624  0.53310   
xREG        -0.088179   0.036176  -2.437  0.01505 * 
xREG:AP     -0.092974   0.050518  -1.840  0.06614 . 
xREG:LTS    -0.092991   0.050518  -1.841  0.06609 . 
xREG:S      -0.092946   0.050518  -1.840  0.06622 . 
xS          -0.072551   0.035806  -2.026  0.04313 * 
xS-AP       -0.071439   0.039938  -1.789  0.07410 . 
xS:AP       -0.050290   0.037654  -1.336  0.18213   
xS:REG      -0.083899   0.038188  -2.197  0.02835 * 
xS/AP       -0.008727   0.050518  -0.173  0.86290   
xS/DP       -0.087074   0.050518  -1.724  0.08523 . 
xS/REG      -0.092903   0.050518  -1.839  0.06635 . 
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03572 on 683 degrees of freedom
Multiple R-squared:  0.114,	Adjusted R-squared:  0.07772 
F-statistic:  3.14 on 28 and 683 DF,  p-value: 0.0000001526