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jieer567гæ (³õÈëÎÄ̳)
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¼±Çó!! excelÔõôÇóбÂʺÍ×Ý×ø±êµÄ±ê׼ƫ²î
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¼±Çó!!ÄÄλ´óÏÀÖªµÀÔÚexcel£¬ÔõôÇóÒ»ÌõÖ±ÏßµÄбÂʺÍ×Ý×ø±êµÄ±ê׼ƫ²î£¬Éó¸åÈ˸øÎÒ²½Öè¿´²»¶®£¬ÄÄλÄܸø¿´¿´ the standard deviations in both the slope and the ordinate at the origin. You can calculate this from Excel as: a) load the x- and y values in columns. b) select with the mouse a square of 5 columns x 2 files. c) select successively ¡°insert¡±, ¡°function¡± and ¡°lineal estimation¡±. d) insert in the four folders now appearing, successively the y-values, the x-values, ¡°1¡± and ¡°1¡±. e) place the cursor in the ¡°fx¡± folder appearing over the main window. f) then, press ¡°ctrl¡± ¡°shift¡± and ¡°enter¡± simultaneously. g) In the marked space will appear: First column, first line: slope. First column, second line: standard deviation in the slope. Second column, first line: ordinate at the origin. Second column, second line: standard deviation in the ordinate at the origin. |
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