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Property Value
Hex Value $EF16
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    • FR: Manual-Fit

    Manual-Fit

    Overview

    Fits a linear equation to a scatter plot with specified color and line style. Color#: 10 - 24 or color name pasted from [vars] COLOR. line style #: 1-4.

    Availability: Token available everywhere.

    Syntax

    Manual-Fit[equname,color#,line style#]

    Arguments

    NameTypeOptional
    equnameYes
    color#colorNumYes
    line style#Yes

    Location

    stat, CALC, D:Manual-Fit


    Description

    This command will allow the user to create a line of best fit according to their judgment. Activate the command by just pasting it on the screen. Then, click on a point for the line to begin followed by an end point. The calculator will then draw your line and display its equation at the top left corner of the screen. You can modify it by selecting the equation part and pressing enter. Input your desired value for the calculator to change it. The equation is stored into Y₁. If you specify what equation you want to store it to, then it will store to that function.

    :Manual-Fit
    (this activates the command and stores to Y₁
    :Manual-Fit Y₃
    (this stores to Y₃ instead)
    

    One note about this is that it only graphs linear models. It is written in the form y=mx+b, and you can modify m or b.
    Exit out by 2nd QUIT.

    Advanced Uses

    This command is able to function in a program, but you cannot modify the values. This is a unique form of gathering user input that stores into the specified Y= function. Of course, this draws a line across the graph screen. You can then convert the function into a different form, like this:

    :Manual-Fit
    :Equ▶String(Y₁,Str1
    

    This will turn the equation the user drew into a string which can then be used for output or calculations.


    Source: parts of this page were written by the following TI|BD contributors: burr, thornahawk, Timothy Foster.

    History

    Calculator OS Version Description
    TI-84+ 0.46 Added

    Last update: September 30, 2023 15:38:51
    Created: February 23, 2023 23:15:01
    Authors: Adrien Bertrand