MATLAB: Inputting a certain number of data points between two values

data pointsinputplotting

I need to input x values from 0 to pi with ten data points in that range. How do I specify that I want ten data points? I know how to say:

x = [0:0.5:pi]

to give me values that are 0.5 apart from 0 to pi, and I could keep changing that number in the middle until I have ten values, but is there a way to just make it give me ten evenly spaced data points? Thank you!

Best Answer

x = linspace(0, pi, 10);

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MATLAB: Skip certain values in plot and connect adjacent points

How to skip x values.

x = 0:pi/10:2*pi;
skipPoints = [pi/2, 3*pi/2]; % list points to skip

x(ismember(x,skipPoints)) = []; % remove skip-points
% now compute Y with only the desired points

y = sin(x);
plot(x,y)

If you'd rather not connect the points adjacent to the skipped values, you can replace the skipped values with NaN

x = 0:pi/10:2*pi;
skipPoints = [pi/2, 3*pi/2]; % list points to skip
x(ismember(x,skipPoints)) = NaN; % Replace with nan
% now compute Y with only the desired points
y = sin(x);
plot(x,y)

MATLAB: Plotting functions over certain intervals

t = -4:0.1:4;
t1 = (t>-4) & (t<-2);

That code is not storing the times in the given range into t1: it is creating a logical vector (0 and 1) the same length as t that tells you if the corresponding t is in range.

t1=t(t>-4&t<-2);

Best Answer

Related Solutions

MATLAB: Skip certain values in plot and connect adjacent points

MATLAB: Plotting functions over certain intervals

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