# Power regression Calculator

## Analyzes the data table by power regression and draws the chart.

 Power regression: y=AxB
 （input by clicking each cell in the table below） data 6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digit
Guidelines for interpreting correlation coefficient r :
0.7＜|r|≦1        strong correlation
0.4＜|r|＜0.7     moderate correlation
0.2＜|r|＜0.4     weak correlation
0≦|r|＜0.2         no correlation

Power regression
 [1-9] /9 Disp-Num5103050100200
[1]  2022/10/31 22:19   Under 20 years old / Elementary school/ Junior high-school student / Very /
Purpose of use
PREDICT FUTURE COUNTS!
[2]  2022/07/07 02:38   Under 20 years old / High-school/ University/ Grad student / Useful /
Purpose of use
Home work
Comment/Request
Well
[3]  2020/04/08 15:41   20 years old level / High-school/ University/ Grad student / Useful /
Purpose of use
Study
[4]  2020/02/01 23:55   60 years old level or over / A retired person / Very /
Purpose of use
Entertainment-- I'm looking at data from the coronavirus outbreak.
Just now, with info available the power regression gives a slightly higher r
than the exponential equation. There is a large difference between the two extrapolations of number of confirmed cases projecting to 40 days.

400,000 for the exponential equation and 140,000 using the power equation.
We'll see, and lets hope the curve breaks quickly.

[5]  2019/09/03 03:18   20 years old level / A teacher / A researcher / Useful /
Purpose of use
Confirming a power regression I had fitted earlier.
Comment/Request
It would be great if we could define multiple independent variables.
[6]  2019/02/14 00:41   20 years old level / High-school/ University/ Grad student / Useful /
Purpose of use
school
Comment/Request
just what i needed thankyou!
[7]  2018/01/03 14:08   40 years old level / A teacher / A researcher / A little /
Purpose of use
practice finding regression models
[8]  2017/11/19 02:08   20 years old level / High-school/ University/ Grad student / Not at All /
Purpose of use
College project involving fitting curve to test data
Comment/Request
This is a nice tool, but I''m not able to use it for my project because I can''t adjust the y-axis, nor the x-axis. I''m dealing with test data where 0<= y <= 5, and 1<=x<=99. The curve being generated for my test data is entirely useless since the y-axis goes up to 1400.

I would absolutely love this if I could adjust the scale.
[9]  2017/10/17 22:54   20 years old level / High-school/ University/ Grad student / Very /
Purpose of use
more accurate A parameter than excel
Comment/Request
thank you so much!

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