vitor duarte teodoro, april 2009. organize a table for computations... data for linear fitting these...
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Some details (I)TRANSCRIPT
![Page 1: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/1.jpg)
Vitor Duarte Teodoro, April 2009
![Page 2: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/2.jpg)
Organize a table for computations...
Data for linear fitting These columns accept 100 pairs (x, y)Note: columns G to L use function ISNUMBER()
![Page 3: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/3.jpg)
Some details (I)
![Page 4: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/4.jpg)
Some details (II)
![Page 5: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/5.jpg)
Some details (III)
![Page 6: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/6.jpg)
Formulas used for computations
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Making an appropriate graph...
Note the details of the graph...
![Page 8: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/8.jpg)
The graph and all computations change with new data
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Be carefull when deleting data to introduce new values!
![Page 10: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/10.jpg)
Excel has a powerful function for linear regression: LINEST
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![Page 12: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/12.jpg)
Important: LINEST is an array formula...
![Page 13: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/13.jpg)
LINEST
![Page 14: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/14.jpg)
An example using LINEST
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Excel also has a Data Analysis Toolpak
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Using the Data Analysis Toolpak
![Page 17: Vitor Duarte Teodoro, April 2009. Organize a table for computations... Data for linear fitting These columns accept 100 pairs (x, y) Note: columns G to](https://reader035.vdocuments.mx/reader035/viewer/2022062311/5a4d1b2f7f8b9ab05999a566/html5/thumbnails/17.jpg)
And the output is... But this output is not interactive