Questions tagged [bar-chart]
A bar chart is graphical representation of data where the value is represented by the length of the bar.
8,392
questions
261
votes
6
answers
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Label axes on Seaborn Barplot
I'm trying to use my own labels for a Seaborn barplot with the following code:
import pandas as pd
import seaborn as sns
fake = pd.DataFrame({'cat': ['red', 'green', 'blue'], 'val': [1, 2, 3]})
...
- 3,693
233
votes
11
answers
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How to display the value on horizontal bars
I generated a bar plot, how can I display the value of the bar on each bar?
Current plot:
What I am trying to get:
My code:
import os
import numpy as np
import matplotlib.pyplot as plt
x = [...
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182
votes
7
answers
491k
views
How to add value labels on a bar chart
I'm creating a bar chart, and I can't figure out how to add value labels on the bars (in the center of the bar, or just above it).
I believe the solution is either with 'text' or 'annotate', but I:
a) ...
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172
votes
6
answers
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How to plot a histogram using Matplotlib in Python with a list of data?
If I have a list of y-values that correspond to bar height and a list of x-value strings, how do I plot a histogram using matplotlib.pyplot.hist?
Related: matplotlib.pyplot.bar.
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163
votes
4
answers
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How can I change the Y-axis figures into percentages in a barplot?
How can we change y axis to percent like the figure? I can change y axis range but I can't make it to percent.
STAT
155
votes
4
answers
305k
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Showing data values on stacked bar chart in ggplot2
I'd like to show data values on stacked bar chart in ggplot2. Here is my attempted code
library(ggplot2)
Data <- data.frame(
Year = c(rep(c("2006-07", "2007-08", "2008-...
- 23.6k
138
votes
8
answers
378k
views
Rotating x axis labels in R for barplot
I am trying to get the x axis labels to be rotated 45 degrees on a barplot with no luck. This is the code I have below:
barplot(((data1[,1] - average)/average) * 100,
srt = 45,
...
- 2,954
136
votes
1
answer
110k
views
Position geom_text on dodged barplot
I tried to make the title self-explanatory, but here goes - data first:
dtf <- structure(list(variable = structure(c(1L, 1L, 2L, 2L, 3L, 3L,
4L, 4L, 5L, 5L), .Label = c("vma", "vla", "ia", "fma", ...
- 35.9k
126
votes
2
answers
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How to put labels over geom_bar for each bar in R with ggplot2
I've found this, How to put labels over geom_bar in R with ggplot2, but it just put labels(numbers) over only one bar.
Here is, let's say, two bars for each x-axis, how to do the same thing?
My ...
- 2,475
121
votes
3
answers
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views
How to change the color of a single bar in a bar plot
Supposely, I have the bar chart as below:
Any ideas on how to set different colors for each carrier? As for example, AK would be Red, GA would be Green, etc?
I am using Pandas and matplotlib in ...
- 2,045
114
votes
5
answers
163k
views
How do you plot bar charts in gnuplot?
How do you plot bar charts in gnuplot with text labels?
- 38.2k
101
votes
4
answers
265k
views
R ggplot2: stat_count() must not be used with a y aesthetic error in Bar graph
I am getting this error while plotting a bar graph and I am not able to get rid of it, I have tried both qplot and ggplot but still the same error.
Following is my code:
library(dplyr)
library(...
- 1,695
96
votes
3
answers
126k
views
Pandas Plotting with Multi-Index
After performing a groupby.sum() on a DataFrame I'm having some trouble trying to create my intended plot.
import pandas as pd
import numpy as np
np.random.seed(365)
rows = 100
data = {'Month': np....
- 2,635
95
votes
4
answers
191k
views
Barchart with vertical ytick labels
I'm using matplotlib to generate a (vertical) barchart. The problem is my labels are rather long. Is there any way to display them vertically, either in the bar or above it or below it?
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92
votes
8
answers
255k
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How to display custom values on a bar plot
I'm looking to see how to do two things in Seaborn with using a bar chart to display values that are in the dataframe, but not in the graph.
I'm looking to display the values of one field in a ...
83
votes
5
answers
148k
views
Create stacked barplot where each stack is scaled to sum to 100%
I have a data.frame like this:
df <- read.csv(text = "ONE,TWO,THREE
23,234,324
34,534,12
56,324,124
34,...
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82
votes
2
answers
392k
views
Plot multiple columns of pandas DataFrame on the bar chart
I am using the following code to plot a bar-chart:
import matplotlib.pyplot as pls
my_df.plot(x='my_timestampe', y='col_A', kind='bar')
plt.show()
The plot works fine. However, I want to improve ...
- 24.9k
80
votes
3
answers
141k
views
Order categories by count in a countplot
I know that seaborn.countplot has the attribute order which can be set to determine the order of the categories. But what I would like to do is have the categories be in order of descending count. I ...
- 1,125
80
votes
6
answers
74k
views
Bar plot, no space between bottom of geom and x axis keep space above
When I plot a bar graph in ggplot2 I would like to reduce the space between the bottom of the bars and the x-axis to 0, yet keep the space above the bars and the plot box. I have a hack to do it ...
- 109k
71
votes
4
answers
132k
views
How to prevent overlapping x-axis labels in sns.countplot
For the plot
sns.countplot(x="HostRamSize",data=df)
I got the following graph with x-axis label mixing together, how do I avoid this? Should I change the size of the graph to solve this problem?
- 18.2k
66
votes
2
answers
75k
views
Reverse stacked bar order
I'm creating a stacked bar chart using ggplot like this:
plot_df <- df[!is.na(df$levels), ]
ggplot(plot_df, aes(group)) + geom_bar(aes(fill = levels), position = "fill")
Which gives me something ...
- 10k
62
votes
5
answers
158k
views
How to plot bar graphs with same X coordinates side by side ('dodged')
import matplotlib.pyplot as plt
gridnumber = range(1,4)
b1 = plt.bar(gridnumber, [0.2, 0.3, 0.1], width=0.4,
label="Bar 1", align="center")
b2 = plt.bar(gridnumber, [0.3, 0.2, 0.2], ...
- 34.8k
61
votes
6
answers
190k
views
Put stars on ggplot barplots and boxplots - to indicate the level of significance (p-value)
It's common to put stars on barplots or boxplots to show the level of significance (p-value) of one or between two groups, below are several examples:
The number of stars are defined by p-value, for ...
- 9,680
60
votes
4
answers
150k
views
How to prevent x-axis labels from overlapping
I'm generating a bar-chart with matplotlib. It all works well but I can't figure out how to prevent the labels of the x-axis from overlapping each other. Here an example:
Here is some sample SQL for ...
- 1,213
59
votes
1
answer
117k
views
Change bar color according to hue name
I'm using seaborn and pandas to create some bar plots from different (but related) data. The two datasets share a common category used as a hue, and as such I would like to ensure that in the two ...
- 10.3k
58
votes
4
answers
72k
views
Edit the width of bars using pd.DataFrame.plot()
I am making a stacked bar plot using:
DataFrame.plot(kind='bar',stacked=True)
I want to control width of bars so that the bars are connected to each other like a histogram.
I've looked through the ...
- 8,020
58
votes
2
answers
225k
views
Grouped bar plot in ggplot
I have a survey file in which row are observation and column question.
Here are some fake data they look like:
People,Food,Music,People
P1,Very Bad,Bad,Good
P2,Good,Good,Very Bad
P3,Good,Bad,Good
P4,...
- 3,366
58
votes
5
answers
199k
views
How to increase the space between bar plot bars
How do I increase the space between each bar with matplotlib barcharts, as they keep cramming them self to the centre. (this is what it currently looks)
import matplotlib.pyplot as plt
import ...
- 701
55
votes
4
answers
102k
views
how to hide highchart x - axis data values
I am drawing a bar chart using highchart.js
I do not want to show the x - axis data values.
Can any one tell me which option does it?
full config:
var chart = new Highcharts.Chart({
...
- 551
54
votes
7
answers
42k
views
Multirow axis labels with nested grouping variables
I would like the levels of two different nested grouping variables to appear on separate lines below the plot, and not in the legend. What I have right now is this code:
data <- read.table(text = "...
- 1,100
52
votes
2
answers
35k
views
Ordering of bars in ggplot
I have looked through the answers in this forum but cannot seem to find an answer to this specific problem. I have the following data and want to create a bar chart where the bars are ordered from ...
- 1,291
51
votes
3
answers
21k
views
How to add group labels for bar charts
I want to plot data of the following form, using matplotlib bar plot:
data = {'Room A':
{'Shelf 1':
{'Milk': 10,
'Water': 20},
'Shelf 2':
...
- 1,583
50
votes
3
answers
87k
views
plotting value_counts() in seaborn barplot
I'm having trouble getting a barplot in seaborn. Here's my reproducible data:
people = ['Hannah', 'Bethany', 'Kris', 'Alex', 'Earl', 'Lori']
reputation = ['awesome', 'cool', 'brilliant', 'meh', '...
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48
votes
2
answers
86k
views
matplotlib bar chart with dates
I know about plot_date() but is there a bar_date() out there?
The general method would be to use set_xticks and set_xticklabels, but I'd like something that can handle time scales from a few hours out ...
- 4,998
46
votes
2
answers
25k
views
How to rotate X-axis labels in bokeh figure?
I'm just starting to use Bokeh. Below I create some args I use for the rect figure.
x_length = var_results.index * 5.5
Multiplying the index by 5.5 gave me more room between labels.
names = ...
- 1,553
45
votes
4
answers
87k
views
Matplotlib, horizontal bar chart (barh) is upside-down
TL'DR, the vertical bar charts are shown in a conventional way -- things line up from left to right. However, when it is converted to horizontal bar chart (from bar to barh), everything is upside-down....
- 22.2k
45
votes
4
answers
100k
views
How to scale Seaborn's y-axis with a bar plot
I'm using factorplot(kind="bar").
How do I scale the y-axis, for example with log-scale?
I tried tinkering with the plots' axes, but that always messed up the bar plot in one way or another, ...
- 8,518
43
votes
4
answers
126k
views
How to display all x labels in R barplot?
This is a basic question but I am unable to find an answer. I am generating about 9 barplots within one panel and each barplot has about 12 bars. I am providing all the 12 labels in my input but R is ...
- 2,283
43
votes
1
answer
56k
views
How can I add hatches, stripes or another pattern or texture to a barplot in ggplot?
Suppose I have data with both an ordinal variable and a categorical variable:
set.seed(35)
df <- data.frame(Class = factor(rep(c(1,2),times = 80), labels = c("Math","Science")),
...
- 24.5k
42
votes
4
answers
58k
views
How to remove gaps between bars in a bar chart
I'm making a bar chart in Matplotlib with a call like this:
xs.bar(bar_lefts, bar_heights, facecolor='black', edgecolor='black')
I get a barchart that looks like this:
What I'd like is one with no ...
- 10.7k
41
votes
3
answers
118k
views
ggplot2 : Plot mean with geom_bar
I have the following data frame:
test2 <- data.frame(groups = c(rep("group1",4), rep("group2",4)),
X2 = c(rnorm(4), rnorm(4)) ,
label = c(rep(1,2),rep(2,2),rep(1,2),rep(2,2)))
and I am ...
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41
votes
3
answers
102k
views
Matplotlib bar graph x axis won't plot string values
I am using Python 2.7 and matplotlib. I am attempting to reach into my database of ambulance calls and count up the number of calls that happen on each weekday.
I will then use matplotlib to create a ...
40
votes
4
answers
242k
views
Simplest way to do grouped barplot
I have the following dataframe:
Catergory Reason Species
1 Decline Genuine 24
2 Improved Genuine 16
3 Improved Misclassified 85
4 Decline Misclassified ...
- 411
37
votes
3
answers
170k
views
How to get a barplot with several variables side by side grouped by a factor
I have a dataset which looks like this one below. I am trying to make a barplot with the grouping variable gender, with all the variables side by side on the x axis (grouped by gender as filler with ...
- 539
36
votes
2
answers
70k
views
Bar plot with groupby
My categorical variable case_status takes on four unique values. I have data from 2014 to 2016. I would like to plot the distribution of case_status grouped by year. I try the following:
df.groupby('...
- 820
34
votes
4
answers
106k
views
Plot the average values for each level
Using ggplot2 generate a plot which shows the following data.
df=data.frame(score=c(4,2,3,5,7,6,5,6,4,2,3,5,4,8),
age=c(18,18,23,50,19,39,19,23,22,22,40,35,22,16))
str(df)
df
Instead of ...
- 12.8k
33
votes
3
answers
158k
views
Stacked Bar Plot in R
I've looked at the similar questions on here regarding stacked bar plots in R, but I'm still not having any luck.
I have created the following data frame:
A B C D E F G
1 ...
- 451
33
votes
3
answers
48k
views
Customizing the order of legends in plotly
I am trying to customize the order of legends while plotting stacked bar plots in plotly,python.
data = [
go.Bar(
y=df['sid'], # assign x as the dataframe column 'x'
...
- 1,431
33
votes
2
answers
21k
views
How to center stacked percent barchart labels
I am trying to plot nice stacked percent barchart using ggplot2. I've read some material and almost manage to plot, what I want. Also, I enclose the material, it might be useful in one place:
How do ...
- 1,328
31
votes
2
answers
53k
views
change color of only one bar in ggplot
I want to color only one bar in ggplot. This is my data frame:
area <- c("Północ", "Południe", "Wschód", "Zachód")
sale <- c(16.5, 13.5, 14, 13)
df.sale <- data.frame(area, sale)
colnames(df....
- 3,219