How to sample data from a plot to a function.?

Question

roro6992 2013-8-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/85342-how-to-sample-data-from-a-plot-to-a-function

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!!

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Azzi Abdelmalek 2013-8-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/85342-how-to-sample-data-from-a-plot-to-a-function#answer_94810

在 MATLAB Online 中打开

Click on your plot then type

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

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

roro6992 2013-8-22

Thanxx a lot for ur suggestion. But is there any way by which i can obatin any n no. of data points from the plot? And to to use this code in my function do i have to click on the plot first and then run the function?? plz suggest.

请先登录，再进行评论。