I have written an equation for plotting the **load power contour** of RF power amplifier in data display window. The function is used ""** contour()** "" to plot the power. This function is giving an error that the 1st argument of the function, which is the load power in dBm, is a **surface data** and it is unable to contour the surface, an **invalid surface problem** occurs. So can anyone suggest me how to solve this problem of surface data? I have also used the function ""**contour_ex**"". It is also of no use.

Can you please provide the detailed characteristics of the data we're talking about? Place 'what(your_var)' into a tabular display and provide the info. (Screenshot/text)

As far as I can remember, contour() requires at least scalar 2-dimensional sweep data with regular (uni-grid) stepping to work. Irregular stuff is probably not supported.