# How can i extrat some value by a plot?

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Pietro Fiondella el 15 de Jul. de 2022
Editada: Voss el 15 de Jul. de 2022
I have 2 vectors forming a plot
MA=[0.763 0.724 0.822 0.839 0.957 1.000 0.963 0.911 0.583 0.480 0.424 0.490];
Month=[1 2 3 4 5 6 7 8 9 10 11 12];
plot(Month,MonthC_A)
The plot is made be a continuos line that connect 2 succesive value of MA divided of a space 1 (space between of Month elements).
I would like to get a vetor X=[1x48] wich has as elemts, 4 values between each interval of space 1.
For example the first 2 elements of MA are 0.763 and 0.724 and and in the plot are the matching value of 1 and 2 on the x axis, i would like to obtain the value of 1, 1.25, 1.5, 1.75, 2
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Voss el 15 de Jul. de 2022
Editada: Voss el 15 de Jul. de 2022
MonthC_A=[0.763 0.724 0.822 0.839 0.957 1.000 0.963 0.911 0.583 0.480 0.424 0.490];
Month=[1 2 3 4 5 6 7 8 9 10 11 12];
plot(Month,MonthC_A)
Month_interp = linspace(Month(1),Month(end),4*(numel(Month)-1)+1)
Month_interp = 1×45
1.0000 1.2500 1.5000 1.7500 2.0000 2.2500 2.5000 2.7500 3.0000 3.2500 3.5000 3.7500 4.0000 4.2500 4.5000 4.7500 5.0000 5.2500 5.5000 5.7500 6.0000 6.2500 6.5000 6.7500 7.0000 7.2500 7.5000 7.7500 8.0000 8.2500
MonthC_A_interp = interp1(Month,MonthC_A,Month_interp)
MonthC_A_interp = 1×45
0.7630 0.7532 0.7435 0.7337 0.7240 0.7485 0.7730 0.7975 0.8220 0.8262 0.8305 0.8347 0.8390 0.8685 0.8980 0.9275 0.9570 0.9677 0.9785 0.9892 1.0000 0.9908 0.9815 0.9722 0.9630 0.9500 0.9370 0.9240 0.9110 0.8290
hold on
plot(Month_interp,MonthC_A_interp,'r.')
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