Proc glm output interpretation:estimate and contrast

[bigban777]

How i can interpret my results from proc glm

ods html style=statistical;
ods graphics on;
title "Anova with Plots";
PROC GLM DATA = smoke3 order=data;;
	CLASS amt;
	MODEL fef=amt/solution;
    /*NS PS NI LS MS HS*/
	/*MY BELIEVES*/
	CONTRAST 'PS NI vs LS' amt 0 -0.6 -0.4 1 0 0;
	ESTIMATE 'PS NI vs LS' intercept 9 amt 0 4 1 4 0 0 / divisor = 9;
	lsmeans amt/pdiff adjust=tukey;
run;
quit;
ods graphics off;
ods html close;

output:

Describe my model:estimate and contrast?

PS i attached my code.

[Rick_SAS]

The SAS documentation provides a mathematical description of Analysis of Variance.

The Getting Started Example for PROC GLM provides a step-by-step table-by-table analysi of the numbers that are produced by PROC GLM for an ANOVA.  There are also sections that describe the CONTRAST, ESTIMATE, and LSMEANS statements, along with examples.