How to change ggplot legend labels and names with two layers?

ggmap, ggplot2, r

Solution

Now that your code is reproducible (thanks!):

dat <- rbind(restaurants,suppliers)
dat$grp <- rep(c('Restaurants','Suppliers'),each = 3)

ggmap(sp) + 
    geom_point(data=dat, aes(x=lon, y=lat,colour = grp),size = 4) + 
    scale_colour_manual(values = c('red','blue'))

Problem

I am plotting the longitude and latitude coordinates of two different data frames in São Paulo map using ggmap and ggplot packages and want to label manually each legend layer: update: I edited my code below to become fully reproducible (I was using the geocode function instead of get_map). update: I would like to do this without combining the data frames. ``` require(ggmap) sp <- get_map('sao paulo', zoom=11, color='bw') restaurants <- data.frame(lon=c(-46.73147, -46.65389, -46.67610), lat=c(-23.57462, -23.56360, -23.53748)) suppliers <- data.frame(lon=c(-46.70819,-46.68155, -46.74376), lat=c(-23.53382, -23.53942, -23.56630)) ggmap(sp)+geom_point(data=restaurants, aes(x=lon, y=lat),color='blue',size=4)+geom_point(data=suppliers, aes(x=lon, y=lat), color='red', size=4) ``` I have looked to several questions and tried different ways without success. Does anyone know how can I insert legend and label the blue points as restaurants and the red points as suppliers?

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