How we can preform Spatial Analysis with R?

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Pepijn de Vries

Dear Mohammad,

In order to give you a proper answer, I think we need a bit more to go on.

For instance, what format is your spatial analysis results in?

What have you already tried and how? What was the result, what worked and what didn't?

Maybe I can help you out if you give a little bit more details...

Cheers,

Pepijn

Mohammad Hasan Gerami

Dear Pepijn

Thanks for your comment and help.

Here I enclosed the map from a part of The Persian Gulf.

I draw the map with ggmap function. Now I want to draw spatial analysis by kriging method or Gaussian process regression. My data frame consist of 3 vector. longitude, latitude and density.

My main question is how I can draw spatial analysis result over this map?

I hope that this describe well.

Regards

Mohammad

See the attachment for a basic example of how you can achieve this with the ggmap package... Is this what you intend to do?

Kind regards,

Dear Pepijin

Thank you very much. It helped.

I have another question.

How we can change color of density diagram in the map?

I mean a color range from red to yellow for example.

please see the attachment. (Figs 3, 4, 5 and 6). In this article, authors plotted a map with spatial analysis.

Note that the illustration in the paper you have attached used an extra-/interpolation technique to estimate the density in space. Not sure if your question is on how to do that, or how to customize the colours in the example that I've provided. The latter can be easily achieved as shown in the attached example.

If you want to produce illustrations similar to that you have attached, you could have a look at kriging techniques (see for instance the kriging-package). This will allow you to interpolate spatial point measurements taking into account spatial auto-correlation in your data...

Thank you very much. It helped very much.

Sincerely Yours