I'm trying to recreate the world Choropleth map given in plotlys example page here: https://plot.ly/python/choropleth-maps/ with the intention of reusing some of the code, but changing the column which informs the shadings and the labelling.
However when I run the exact code given in the example I receive the following error.
plotly.exceptions.PlotlyError: Because you didn't supply a 'file_id' in the call, we're assuming you're trying to snag a figure from a url. You supplied the url, '', we expected it to start with 'https://plot.ly'. Run help on this function for more information.
I have no idea where this error arises from and my question really is how do I adapt the code so that it produces the said figure offline? Secondly is there a simple method for saving the figure directly to a png? Apologies if this is trivial I'm completely new to the package.
Here is the code:
import plotly.plotly as py
import pandas as pd
df = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/2014_world_gdp_with_codes.csv')
data = [dict(
type='choropleth',
locations=df['CODE'],
z=df['GDP (BILLIONS)'],
text=df['COUNTRY'],
colorscale=[[0, "rgb(5, 10, 172)"], [0.35, "rgb(40, 60, 190)"], [0.5, "rgb(70, 100, 245)"],\
[0.6, "rgb(90, 120, 245)"], [0.7, "rgb(106, 137, 247)"], [1, "rgb(220, 220, 220)"]],
autocolorscale=False,
reversescale=True,
marker=dict(
line=dict(
color='rgb(180,180,180)',
width=0.5
)),
colorbar=dict(
autotick=False,
tickprefix='$',
title='GDP<br>Billions US$'),
)]
layout = dict(
title='2014 Global GDP<br>Source:\
<a href="https://www.cia.gov/library/publications/the-world-factbook/fields/2195.html">\
CIA World Factbook</a>',
geo=dict(
showframe=False,
showcoastlines=False,
projection=dict(
type='Mercator'
)
)
)
fig = dict(data=data, layout=layout)
py.iplot(fig,validate=False, filename='d3-world-map')