Strange slope for points in a curve
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Dear experts, I want to get the slope for each point from the curve defined below:
x = 1194:1206;
see the attached graph for the curve.
Directly applying the function "gradient" cannt get the correct slope - the slope will jump up an down. It's understandable that I don't have enough data points. I expect the slope changes gradually.
I expect not to use any interpretation or curve fitting method. Any suggestion is welcome. Many thanks