Math Is Fun Forum

neverhood

Member

Registered: 2010-04-25

Posts: 1

Estimate variables from mesurement data

Hi math'ers
I'm building a robot, and need to estimate the time it takes to turn x number of degrees.

There are two unknown variables:
y - The time it takes for the robot to start turning after the turning command is sent. (This is constant, but still unknown)
z - The time it takes to turn x number of degrees after the turning starts.

I start with some guessed values for y and z, and after each turn I measure how many degrees was actually turned.

So, some sample data could look like this:
y+38z=850
y+53z=1200
y+80z=1850

how do I estimate y and z with a variable number of sample data?

Thanks in advance

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Estimate variables from mesurement data

Hi neverhood;

Why not just tabulate y and z and then do a least squares fit.

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