Map with time slider using Plotly in R

Hello friends! we’ll be learning to create the map with time slider using plotly in R. Very simple and reusable code in tutorial.

Data

Data is as shown below with country, covid cases and date fields.

country	new_cases_per_million	start_of_week	code
Afghanistan	0.021428571	24-02-2020	AFG
Afghanistan	0.150142857	02-03-2020	AFG
Afghanistan	0.366	09-03-2020	AFG
Afghanistan	1.298	16-03-2020	AFG
Afghanistan	3.579142857	23-03-2020	AFG
Afghanistan	5.820428571	30-03-2020	AFG
Afghanistan	8.441857143	06-04-2020	AFG
Afghanistan	9.994571429	13-04-2020	AFG
Afghanistan	20.39828571	20-04-2020	AFG

Code

Commented code as following with the data

#load library
library(dplyr)
library(plotly)
library(htmlwidgets)
#load data
df <- read.csv("graph.csv")
#create map
p <- plot_geo(df, locationmode = 'world') %>%
add_trace( z = ~df$new_cases_per_million, locations = df$code, frame=~df$start_of_week,
color = ~df$new_cases_per_million)
#export as html file
htmlwidgets::saveWidget(p, file = "map.html")

Get the code here

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