Questions tagged [heatmap]

A heat map is a graphical representation of data where the individual values contained in a matrix are represented as colors.

Filter by
Sorted by
Tagged with
0
votes
0answers
7 views

Coding advice/tricks to create a Seaborn heatmap for a high number of columns or most relevant only

The number of columns (more than 30) gives the Seaborn heatmap a messy appearance and impossible to glean important information from. What I am wondering is, can I map ONLY variables with the most ...
0
votes
0answers
12 views

GEO Choropleth not found

I'm Trying create, from Geo add-on, a Chropleth map in Orange version 3.24.1 for windows . But, this widget just don't appear... some tip?
2
votes
0answers
82 views

Understanding CNN by visualizing class activations using GRAD_CAM

I followed the blog Where CNN is looking? to understand and visualize the class activations in order to predict something. The given example works very well. I have developed a custom model using ...
0
votes
0answers
30 views

Sns Heatmap save as png jpeg image with full labels visible via python

I am trying to save my heat map in png format using the below code, but the labels are getting trimmed when I am saving the heatmap. Please help to keep the labels inside the figure. ...
1
vote
1answer
53 views

Is converting a categorical value into numerical needed to find a correlation?

I have a small dataset of 1300 observations x 20 features. They are all numerical but one, which is categorical; this was calculated independently and relates to each observation in any case. I'm now ...
0
votes
1answer
36 views

How should I read the following heatmap?

I've been playing around with the linear regression, and I was thought that before commencing it's always good to plot an heatmap to see whether there are features that somehow is worth testing for ...
1
vote
0answers
17 views

Seaborn heatmap plot contains strings of unfamiliar characters

Pfile was loaded in the wrong encoding utf-8 How do I fix the error above when I plot an heatmap using Seaborn? I expected a heatmap plot to be generated in .png, rather, I have a string of ...
0
votes
1answer
64 views

Why am I getting misaligned values while plotting heatmaps using seaborn?

While plotting heatmaps using seaborn, the numbers are getting printed on the boundary of the heatmap (Please see the image attached). I have already plotted heatmaps many times using the same code. ...
0
votes
0answers
17 views

Population Data

I'm trying to creating a heatmap using Esri Arcgis but need to find a data set of the population within a 1-mile and 3-mile radius. Does anyone know if there is a free data set that I could use? ...
1
vote
1answer
46 views

How to display an Heat Map (using Tableau or other BI tool)?

I've a simple dataset: Id Longitude Latitude Value What can I obtain at the moment are "one map point" in every place.. Sum of Value don't affect "density" color. I would like to display a ...
0
votes
0answers
125 views

GradCAM heatmap all negative

I've fully trained the VGG16 model on my dataset, resulting in a 97% validation accuracy. I'm using the code from this github: https://github.com/PowerOfCreation/keras-grad-cam but for 2 of my 16 ...
0
votes
1answer
31 views

What should be the criteria to select features using correlation factors between features? [duplicate]

For the titanic dataset, I have done some feature engineering (one-hot encoded the features) and now I have developed a heatmap to view the correlation between different features. I'm not able to ...
0
votes
1answer
169 views

Changes in the standard Heatmap plot - symmetric bar colors, show only diagonal values, and column names at x,y axis ticks

I have a heatmap image (correlation between all matrix columns) and I'm straggling to preform all the changes below within the same image: bar colors should be symmetric around zero (e.g., ...
0
votes
0answers
459 views

How to fix “Centering cmap, with missing values (nan), on a seaborn heatmap”

I'm trying to plot a seaborn heatmap centered on 0. So I can see the divergence of the values on the positive and negative range. The problem is that near 0 the values change too smoothly, on the ...
0
votes
1answer
315 views

MSE vs Cross Entropy for training with facial landmark (pose) heatmaps

I am trying to reimplement the excellent paper https://github.com/1adrianb/face-alignment-training in tensorflow. I have successfully defined the network and downloaded the LSD3D-W dataset. I am ...
1
vote
1answer
67 views

Alternatives to Heat Maps for Communicating Daily Data

I am currently using the heat map below to communicate the number of messages sent on a messing platform over time. I don't think this is the most effective way to communicate the information as it's ...
1
vote
0answers
2k views

How to plot a heatmap-like plot for categorical features?

I would greatly appreciate let me know how to plot a heatmap-like plot for categorical features? In fact, based on this post, the association between categorical ...