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MATLAB Practice 4

#author("2022-06-06T12:40:08+09:00","default:mori","mori")
* Regression Analysis Problem [#o136b05b]. [#mf54545f]
#author("2022-06-06T12:40:16+09:00","default:mori","mori")
* Regression Analysis Problem [#vee95001]

+ Find the coefficients of the linear and quadratic regressions from the North Pacific mean wind speed data using the least squares method.
 # textread or fscanf
 # polyfit 
+ Extrapolate the temperature 100 years from now from the obtained regression equation and plot it together with the data. 
 # polyval
 # plot, 'LineStyle', 'LineWidth'
+ Indicate the names of the x- and y-axis coordinates and the type of line in the plot. The font should be Times and the size should be 14 points (keep this format for the following questions). 
 # xlabel, ylabel, legend
 # set(gca,'FontSize',14,'FontName','Times')
   -> 'gca' refers to the currently used coordinate axis

* Data [#i5242af4]. [#z895a88f]
* Data [#fc7bc520]
- Sources.
-- [[North Pacific mean wind speed over the last 50 years>Home:files/education/windspeed.dat]]
- Format.
-- Text format (3 columns X 5? lines: '%d %e $%e')
-- Year Average wind speed Standard deviation