colormap of temperature for a country only having about 79 locations (coordinates) and temperature at that site.

hello,

i have a 3 column matrix, lat,long, temperature. I need to display this over the area of the country from which these temperature readings were taken. I know i need to interpolate somehow so that the whole region is covered with a colormap. I really need help. I am able to load the outline of the country using

worldmap({'Haiti','Dominican Republic'})
load coast
plotm(lat, long)

 this gives me the desired country outline. I really need help, i have been googling for about 5 hours and i cant find anyone with this specific example, most people have the data for the whole country at every lat and lon.

thank you

any help is helpful.

[Walter Roberson]

duplicates http://www.mathworks.co.uk/matlabcentral/answers/126402-how-to-create-a-2d-colormap-having-temperature-reading-at-specific-longitudes-and-latitudes