HP 48G Linear Regression Best Fit Line
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12-18-2021, 10:13 PM
(This post was last modified: 12-18-2021 10:15 PM by MNH.)
Post: #22
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RE: HP 48G Linear Regression Best Fit Line
(12-11-2021 05:38 PM)Rodger Rosenbaum Wrote: The result will be the slope and intercept for the line which minimizes the SSE with the deviation from the line in the orthogonal direction. My results are: 120.175378956 -80799.308982 which looks strange to me, probably because I don't know a lot about statistics. My ΣDAT is y 29945.480 30002.951 30006.678 30058.926 30114.903 30119.876 30221.977 x 921.773 922.245 982.237 921.687 923.001 983.350 924.059 In the matrix editor I entered the 'x' data in column 1 and the 'y' data in column 2. Is that correct? The actual survey data is PT # Northing Easting Elevation Description 248 29945.480 921.773 0.000 PROP_COR 249 30002.951 922.245 0.000 PROP_COR 250 30006.678 982.237 0.000 PROP_COR 251 30058.926 921.687 0.000 PROP_COR 252 30114.903 923.001 0.000 PROP_COR 253 30119.876 983.350 0.000 PROP_COR 254 30221.977 924.059 0.000 PROP_COR Please see the attached file (thumbnail) to see the relationship of the points. North is straight up. |
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