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Hi, Daniel,
First of all, thanks for your reply!
There are three vectors in my data. x is Longitude, y is latitude, z is production rate.
If I use image function, then both x and y should be in ascending order. And I can't make both vectors in that way.
I used plot function and point fucntion to draw the graphic. I just wanna show those points with higher production rate deeper in a same color, while the lower ones look shallow.
Some of those vectors are here:
x<c(6672140,6700888,6723226,6723226,6712064,6700906,6698044,6683994,6688603,6682663)
y<c(1515324,1407220,1410714,1410679,1420614,1412834,1412887,1412943,1410689,1408286)
z<c(1051,718,1107,2555,652,737,738,706,749,799)
In total they are 900 rows.
Any suggestion to use image() function or others?
