heatmap Questions
13
Solved
I have a set of X,Y data points (about 10k) that are easy to plot as a scatter plot but that I would like to represent as a heatmap.
I looked through the examples in Matplotlib and they all seem to...
Soubise asked 3/3, 2010 at 7:42
2
Solved
I want to produce a heat map where with a color pallet of green to red, but values of 0 are in white. I got started with geom_tile heatmap with different high fill colours based on factor and other...
4
Solved
I have the following synthetic dataframe, including numerical and categorical columns as well as the label column.
I want to plot a diagonal correlation matrix and display correlation coefficients ...
1
Solved
I want to create a heatmap in seaborn, and have a nice way to see the labels.
With ax.figure.tight_layout(), I am getting
which is obviously bad.
Without ax.figure.tight_layout(), the labels get c...
Acclaim asked 17/8, 2022 at 9:33
1
Solved
I have similar problems as this question; I am trying to combine three plots in Seaborn, but the labels on my y-axis are not aligned with the bars.
My code (now a working copy-paste example):
impor...
3
Solved
There are services like crazyegg.com that show you where visitors are resting their mouse cursors on your web page. My question is, given that people have different screen widths how can they be su...
Grishilda asked 9/2, 2012 at 20:18
1
Solved
I'm unsure why the heatmap outputed by the following minimal working example
using Plots
plotlyjs()
List_x = [1, 2, 3]
List_y = [1, 2]
List_f = [0 0 0; 1 2 3]
my_plot = heatmap(List_x, List_y, L...
3
Solved
I'm plotting a heatmap in Seaborn. The problem is that I have too many squares in my plot so the x and y labels are too close to each other to be useful. So I'm creating a list of xticks and yticks...
0
In visual studio python code, I am trying to create a heatmap for my data features. The feature name is sometimes long, and this causes the label on the x-axis to be partially visible sometimes (bu...
Theran asked 17/4, 2022 at 23:43
3
Solved
Background
In a confusion matrix, the diagonal represents the cases that the predicted label matches the correct label. So the diagonal is good, while all other cells are bad. To clarify what is go...
Haymes asked 12/11, 2020 at 8:4
6
Solved
I am trying to create a heat map with python. For this I have to assign an RGB value to every value in the range of possible values. I thought of changing the color from blue (minimal value) over g...
Wartburg asked 26/12, 2013 at 23:7
2
Solved
I have a single-channel image where each integer pixel value maps to a string. For example 5 -> 'person'. I'm trying to create an interactive image where hovering over a pixel will display it's cor...
Demure asked 6/3, 2019 at 1:9
6
Solved
Using Matplotlib, I want to plot a 2D heat map. My data is an n-by-n Numpy array, each with a value between 0 and 1. So for the (i, j) element of this array, I want to plot a square at the (i, j) c...
Cree asked 22/10, 2015 at 13:37
4
Solved
In other words, I want to make a heatmap (or surface plot) where the color varies as a function of 2 variables. (Specifically, luminance = magnitude and hue = phase.) Is there any native way to do ...
Coquito asked 4/3, 2013 at 17:21
2
Given the following heatmap:
import matplotlib.pyplot as plt
import seaborn as sns
import pandas as pd
%matplotlib inline
df = pd.DataFrame(
{'A' : ['A', 'A', 'B', 'B','C', 'C', 'D', 'D'],
'B' : ...
Complacency asked 25/1, 2016 at 21:46
3
Solved
I am working on a heatmap using heatmap.2 and would like to know if there is anyway to display the values on all heatmap positions. For example for the area representing "1" and rating I would like...
1
Solved
I am trying to show the z items as text on a Plotly heatmap. I am using the latest version (5.5.0) and following the exact example shown on the Plotly Heatmaps webpage (https://plotly.com/python/he...
Windtight asked 28/12, 2021 at 21:21
2
Solved
I am using Matplotlib 3D to plot 3 dimensions of my dataset like below:
But now I also want to visualize a 4th dimension (which is a scalar value between 0 to 20) as a heatmap. So basically, I w...
Knifeedged asked 19/7, 2013 at 23:18
3
Solved
I want to make a heatmap in matplotlib using either pcolor or another heatmap library. I have found many great examples, but can't determine how to either get my data in the correct format or inste...
Toro asked 26/2, 2019 at 22:44
1
Solved
I have this issue with heatmap from seaborn. I don't know how, but seaborn.heatmap() refuses to take in dataframe, it instead show the mentioned error. Seaborn, matplotlib and pandas is up-to-date ...
2
I made a figure with 3 axes in it. Each axis is a heatmap with the same color bar. I want to only keep the colorbar of the 3rd axis and hide the 1st and 2nd colorbar (but keep the heatmap position ...
Lauro asked 21/5, 2018 at 18:4
4
Solved
I can't seem to get this figured out. I have a scaled set of values (0...1) that I need to associate colors with. The highest (1) being red and the lowest (0) being green.
I cannot seem to find ho...
3
I want seaborn heatmap to display multiple values in each cell of the heatmap. Here is a manual example of what I want to see, just to be clear:
data = np.array([[0.000000,0.000000],[-0.231049,0.0...
Tibbitts asked 11/3, 2019 at 18:12
6
Solved
By default, R's heatmap will cluster rows and columns:
mtscaled = as.matrix(scale(mtcars))
heatmap(mtscaled, scale='none')
I can disable the clustering:
heatmap(mtscaled, Colv=NA, Rowv=NA, sc...
Earthman asked 27/4, 2015 at 10:49
1
Solved
How can I hide the color bar from a seaborn generated heatmap
import numpy as np; np.random.seed(0)
import seaborn as sns; sns.set_theme()
uniform_data = np.random.rand(10, 12)
ax = sns.heatmap(un...
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