i want to ask why my output of standard error is zero. here my command that i used data MP02; input N LAI SPAD HEIGHT DIAMETER BLUE GREEN RED NIR; cards; 2.22 1.99 78.27 5.93 2.47 8.12 11.99 8.61 53.29 2.35 2.07 65.30 5.67 2.37 5.11 8.84 4.98 65.95 3.39 2.91 67.77 4.23 2.50 6.82 10.81 7.32 52.35 2.46 2.85 76.43 4.97 2.29 7.00 10.53 7.32 54.81 2.37 1.85 74.17 5.81 2.50 5.01 8.13 4.81 65.08 2.27 2.22 61.20 5.29 2.54 9.29 16.34 11.74 55.12 2.45 1.95 71.30 4.12 2.35 4.87 8.07 5.13 54.27 2.16 3.30 72.33 5.05 2.30 5.55 8.75 5.50 64.41 2.52 2.07 69.53 3.99 2.46 5.91 9.46 6.17 54.29 ; proc reg; FORWARDSELECT:model N= LAI SPAD HEIGHT DIAMETER BLUE GREEN RED NIR/SELECTION=FORWARD; proc reg; MAXR:model N= LAI SPAD HEIGHT DIAMETER BLUE GREEN RED NIR/SELECTION=MAXR; proc reg; MINR:model N= LAI SPAD HEIGHT DIAMETER BLUE GREEN RED NIR/SELECTION=MINR; proc reg; RSQUARE:model N= LAI SPAD HEIGHT DIAMETER BLUE GREEN RED NIR/SELECTION=RSQUARE; proc reg; ADJRSQ:model N= LAI SPAD HEIGHT BLUE GREEN RED NIR/SELECTION=ADJRSQ; PROC PLOT; PLOT N*LAI N*SPAD N*HEIGHT N*DIAMETER N*BLUE N*GREEN N*RED N*NIR; run; is there anyone that can suggest what i should do?
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