im running in the problem and I have a hard time figuring out what it is so I'm here to ask for help.
when i try to run the following code:
from bokeh.plotting import figure
from bokeh.io import export_svgs
from bokeh.plotting import figure, output_file, show
import pandas
import csv
output_file("bars.html")
input = pandas.read_csv("csv/SampleData.csv")
years = input["year"]
numbers = input["amount"]
print(years)
print(numbers)
p = figure(x_range=years, plot_height=250, title="graph title",
toolbar_location=None, tools="")
p.vbar(x=years, top=numbers, width=0.9)
p.xgrid.grid_line_color = None
p.y_range.start = 0
show(p)
with in the SampleData.csv these numbers:
year,amount
2010,1.5
2011,3
2012,5
2013,8
im getting the following error:
raise ValueError("Unrecognized range input: '%s'" % str(range_input))
ValueError: Unrecognized range input: '[2010 2011 2012 2013]'
the 2 print statements do give back the following numbers while running:
0 2010
1 2011
2 2012
3 2013
Name: year, dtype: int64
0 1.5
1 3.0
2 5.0
3 8.0
Name: amount, dtype: float64
i know the problem is with the years = input["year"] part because if i instead put years = ["2010","2010","2010","2010"] it does work, and get the right data from numbers = input["amount"] i dont see why that one is working but the years one is not.
i hope someone can help me out, sorry for any bad English!
The x_range parameter in figure wants a list of strings if the x-axis is categorical. Just convert the years Series of integers to a Series of strings, modifying the row were you assign the variable years to:
years = input["year"].astype(str)