Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.024419 -0.014507 -0.003179  0.003458  0.264318 

Coefficients:
             Estimate Std. Error t value Pr(>|t|)  
(Intercept)  0.052381   0.024256   2.159   0.0312 *
xAP         -0.035061   0.024299  -1.443   0.1495  
xAP-REG     -0.046202   0.029708  -1.555   0.1204  
xAP:LTS     -0.040116   0.034303  -1.169   0.2426  
xAP:P       -0.033526   0.034303  -0.977   0.3287  
xAP:REG     -0.045560   0.026571  -1.715   0.0869 .
xAP:S       -0.036061   0.026571  -1.357   0.1752  
xDP         -0.038236   0.025931  -1.475   0.1408  
xDP:LTS     -0.041987   0.029708  -1.413   0.1580  
xDP:S       -0.004897   0.029708  -0.165   0.8691  
xDP/S       -0.052379   0.028009  -1.870   0.0619 .
xLAW        -0.051700   0.024431  -2.116   0.0347 *
xLAW:REG    -0.046925   0.027119  -1.730   0.0840 .
xLTS        -0.038737   0.024756  -1.565   0.1181  
xNAPA       -0.016166   0.034303  -0.471   0.6376  
xNM          0.042679   0.034303   1.244   0.2139  
xP          -0.032420   0.024718  -1.312   0.1901  
xPNACC      -0.034623   0.034303  -1.009   0.3132  
xREG        -0.049199   0.024565  -2.003   0.0456 *
xREG:AP     -0.052362   0.034303  -1.526   0.1274  
xREG:LTS    -0.040238   0.034303  -1.173   0.2412  
xREG:S      -0.030264   0.034303  -0.882   0.3780  
xS          -0.037826   0.024314  -1.556   0.1202  
xS-AP       -0.031660   0.027119  -1.167   0.2434  
xS:AP       -0.026305   0.025568  -1.029   0.3039  
xS:REG      -0.031961   0.025931  -1.233   0.2182  
xS/AP       -0.030777   0.034303  -0.897   0.3699  
xS/DP       -0.044739   0.034303  -1.304   0.1926  
xS/REG      -0.052377   0.034303  -1.527   0.1273  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.02426 on 683 degrees of freedom
Multiple R-squared:  0.08088,	Adjusted R-squared:  0.0432 
F-statistic: 2.146 on 28 and 683 DF,  p-value: 0.0005979