Hi All. I want to color US map by 3 different categories. What I did is create a column shows the category of each state and set it as Z value to create the map. However, in this case, legend cannot show correctly.
Can someone give me a hint to color map by categories or fix this legend problem? Thanks ahead.
sample = read.csv('sample.csv')
g <- list(
scope = 'usa',
projection = list(type = 'albers usa'),
showlakes = TRUE,
lakecolor = toRGB('white')
)
colorscale = c("#f7fbff","#85bcdb","#08519c")
p <- plot_geo(sample, locationmode = 'USA-states') %>%
add_trace(z = ~Category_Color, text = ~FIPS, locations = ~Postal_Code,color = ~Category_Color,colors = colorscale,showscale = T,showlegend = T) %>%
add_text(x = ~Longitude, y = ~Latitude, text = ~Postal_Code,showlegend = F)%>%
layout(title = Sample',geo = g)
p %>% offline()
