MATLAB: How to sample data from a plot to a function.

passing data to a functionsampling data from plot

Hi evryone, Can you tell me if there is any way to obtain a discrete set of data points from a plot and use those data points later in a function. Suppose i hv a function 'Flow_inlet' in which i hv to feed data of Outlet flow at diff time instants and i have a plot of Output flow vs. time. Now how can i feed the data from the curve to the function. If it cud be done anyway then how?? Plzz enlighten me.Really need ur help. Thnxx in advance!!

Best Answer

Click on your plot then type

x= get(gco,'xdata')
y=get(gco,'ydata')

Related Solutions

MATLAB: Can someone tell me how to plot the data

to plot analog data. the command used is the

plot(t,x)

where t is time vector and the x is the signal to be plotted. the length of both vectors should be equal

in order to plot the digital data the command used is

stem(n,x)

where the n is the samples and the x is the data points. the length of both vectors should be equal.

hope answer the question

MATLAB: Can I pass table as an argument to a function.

See this answer here: https://www.mathworks.com/matlabcentral/answers/572815-matlab-coder-table-variables-must-be-constant. It will be easier if you index the table using numeric values. For example

function MyCalulations(DataTable)
Xmean=mean(DataTable{:,1});
Ymean=mean(DataTable{:,2})
end

The C++ code is generated correctly.

These are some useful links:

https://www.mathworks.com/help/coder/ug/code-generation-for-tables.html

https://www.mathworks.com/help/simulink/ug/table-limitations-for-code-generation.html

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Related Solutions

MATLAB: Can someone tell me how to plot the data

MATLAB: Can I pass table as an argument to a function.

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