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Given below is a display of Maps which generates 5 markers when you click the button below.

## PhantomJS not found. You can install it with webshot::install_phantomjs(). If it is installed, please make sure the phantomjs executable can be found via the PATH variable.

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### REFERENCES 1. https://spatialanalysis.github.io/workshop-notes/index.html 2. https://stackoverflow.com/questions/33620133/change-the-color-of-action-button-in-shiny