I've been googleing to find if it's possible to change only the color of a bar in a graph made by matplotlib. Imagine this graph:
let's say I've evaluation 1 to 10 and for each one I've a graph generate when the user choice the evaluation. For each evaluation one of this boys will win.
So for each graph, I would like to leave the winner bar in a different color, let's say Jim won evaluation1. Jim bar would be red, and the others blue.
I have a dictionary with the values, what I tried to do was something like this:
for value in dictionary.keys(): # keys are the names of the boys if winner == value: facecolor = 'red' else: facecolor = 'blue' ax.bar(ind, num, width, facecolor=facecolor)
Anyone knows a way of doing this?
Thanks in advance :)
You need to use
color instead of
facecolor. You can also specify color as a list instead of a scalar value. So for your example, you could have
import numpy as np import matplotlib.pyplot as plt fig = plt.figure() ax = fig.add_subplot(111) N = 5 ind = np.arange(N) width = 0.5 vals = [1,2,3,4,5] colors = ['r','b','b','b','b'] ax.barh(ind, vals, width, color=colors) plt.show()
is a full example showing you what you want.
To answer your comment:
colors =  for value in dictionary.keys(): # keys are the names of the boys if winner == value: colors.append('r') else: colors.append('b') bar(ind,num,width,color=colors)
for seaborn you can do something like this:
values = np.array([2,5,3,6,4,7,1]) idx = np.array(list('abcdefg')) clrs = ['grey' if (x < max(values)) else 'red' for x in values ] sb.barplot(x=idx, y=values, palette=clrs) # color=clrs)