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RELDIFName:
Dataplot also supports the alternative formula
where <y1> is a variable or a parameter; <y2> is a variable or a parameter; <y> is a variable or a parameter (depending on what <y1> and <y2> are) where the computed relative difference values are stored; and where the <SUBSET/EXCEPT/FOR qualification> is optional. This syntax implements the first formula given above (the denominator is the maximum of the two values).
where <y1> is a variable or a parameter; <y2> is a variable or a parameter; <y> is a variable or a parameter (depending on what <y1> and <y2> are) where the computed relative difference values are stored; and where the <SUBSET/EXCEPT/FOR qualification> is optional. This syntax implements the second formula given above (the denominator is the average of the two values).
LET A = RELDIF(A1,A2) LET X2 = RELDIF(X1,X4) LET X2 = RELDIF(X1-4,X2+6)
LET X = SEQUENCE 0.1 0.1 3 LET Y1 = X**2 LET Y2 = X**(1/2) LET Y3 = RELDIF(Y1,Y2) SET WRITE DECIMALS 5 PRINT Y1 Y2 Y3The following output is generated: --------------------------------------------- Y1 Y2 Y3 --------------------------------------------- 0.01000 0.31622 0.96837 0.04000 0.44721 0.91055 0.09000 0.54772 0.83568 0.16000 0.63245 0.74701 0.25000 0.70710 0.64644 0.36000 0.77459 0.53524 0.49000 0.83666 0.41433 0.64000 0.89442 0.28445 0.81000 0.94868 0.14618 1.00000 1.00000 0.00000 1.21000 1.04880 0.13321 1.44000 1.09544 0.23927 1.69000 1.14017 0.32533 1.96000 1.18321 0.39631 2.25000 1.22474 0.45566 2.56000 1.26491 0.50589 2.89000 1.30384 0.54884 3.24000 1.34164 0.58591 3.61000 1.37840 0.61817 4.00000 1.41421 0.64644 4.41000 1.44913 0.67139 4.84000 1.48323 0.69354 5.29000 1.51657 0.71331 5.76000 1.54919 0.73104 6.25000 1.58113 0.74701 6.76000 1.61245 0.76147 7.29000 1.64316 0.77459 7.84000 1.67332 0.78656 8.41000 1.70293 0.79751
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Date created: 01/06/2011 |