Questions tagged [visualization]

Constructing meaningful and useful graphical representations of data. (If your question is only about how to get particular software to produce a specific effect, then it is likely not on topic here.)

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904 views

What is the best way to visualize 10 Fold Cross Validation Scores?

I have trained a CNN model and I have applied 10 Fold Cross Validation because I don't have much data to train the classifier. Now I am unsure about how to visulize fold wise results. Please suggest ...
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117 views

Visualizing a large graph (10'000 nodes)

I am currently trying to find a way to visualize a graph which has 10'000 nodes, and about 20'000 edges. I was trying this javascript library, but quickly realised that this is too computationally ...
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82 views

How to plot High Dimensional supervised K-means on a 2D plot chart

I'm Having a ML problem where my data set contains 80 features labelled into 3 groups (0, 1, -1). I want to plot the data on a 2D surface to see how "close" (similar) data with ...
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1answer
62 views

What kind of plot will be helpful for total count group data ( data grouped by month and year )?

I have a group data frame like this : ...
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1k 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 ...
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1answer
595 views

What does it mean by “t-SNE retains the structure of the data”?

I was learning about t-SNE when I was told that t-SNE retains the structure of the data in the embeddings. What exactly does this mean ? How does the algorithm achieve this ? So far I have ...
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0answers
34 views

Data Visualization Plotly.js renders same image when saved to html from jupyter notebook

I have displayed two different Plotly images (bar charts) in Jupyter notebook using Plotly API. However, when I save the notebook to html both the bar chart displays as the same image. For e.g. I have ...
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0answers
36 views

What are the best free reporting tools?

What are the best free Business Intelligence (Reporting) tools, that allows live updates on the reports and also sharing them to other users? Actually now I’m using the community edition of Pentaho ...
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1answer
211 views

kde plot for interpreting the correlation

i have created some new features for my model. I found people use kde plot to find out the correlation between the created feature and the target variable, but I am not really sure how to find the ...
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1answer
133 views

Git for Deep Learning - what are the best tools for versioning/tracking machine learning experiments?

I'm looking for a tool to track the results of several experiments/iterations in machine learning. Training a model can take days/weeks, so it's essential to track its performance and be able to ...
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3answers
140 views

What is the best way to visualize the relationship two categorical variables

I am currently working on an ambulance dataset and one of my tasks is to find when a patient was misdiagnosed by the call dispatcher. I have two codes; a dispatch code(what the dispatcher believes is ...
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0answers
50 views

Can Google really bring back billions of results in a blink of an eye (almost) [closed]

I was always fascinated by Google's search ability, a great achievement by Google and other search engine providers also, but more so a collective human talent and ability that makes me appreciate our ...
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1answer
407 views

Reconstructing original data points from t-SNE output

I have been trying to understand t-SNE for a while now and I have this very basic question on the comparison of PCA and t-SNE, on which I would really appreciate some help. In case of PCA suppose the ...
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1answer
1k views

How to scatter plot with each dimension having its own color

I want to get insight for some values. I have two vectors of 300 dimensions, and want to compare them coordinate by coordinate. So I thought to plot each point with a different color, but the color ...
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0answers
172 views

How to best visualize data when outliers lead to lack of contrasting colors for the rest of the plot?

I have plotted the following map of Philippines according to the population in its regions, using matplotlib.pyplot in Python 3: As can be seen, there's one ...
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77 views

Are there any methods of supervised learning that return a bitmap instead of a set of parameters?

For example, the SVM or ANN methods perform search of a surface which would separate the data points in a best way. This surface is returned in the vector or parametric form. Are there methods ...
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1answer
126 views

Does it make sense to visualize data with a linear relationship using tSNE?

I have used tSNE several times to visualize high dimensional data for cluster analysis, and it has always worked quite well when data falls into clusters. However, does it make any sense to use tSNE ...
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1answer
708 views

How to visualize convolutional network focus on autoencoder?

I'm trying to create some cool (and at least somewhat meaningful) visualizations of my CNN that I am using to autoencode images, as I use the encoded middle layer to do similarity comparisons. I.e. ...
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1answer
303 views

Visualize the predicted and actual class after training and testing

The data set X has 10 features with 50 instances labelled as 0 and 1. Considering only 6 instances as an example here, let YPred ...
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1answer
938 views

Interactive dashboard for time series data

I'm searching for some tools that allow me to build a dashboard in order to visualize information about time series. This dashboard needs to be interactive and allows to be integrated into a web site (...
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2answers
31 views

Keep track of trainings, datasets eetc

After searching quite some time for it on Google I could not find a sufficient software/toolbox that can manage trainings of neural networks. I thought of a program that combines visualization ...
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1answer
44 views

Devise a single metric to measure retention of listeners using the service on a daily basis for the last month

I have dummy data for a music streaming service, the data is as follows:- Monthly uniques = the number of unique listeners on each platform for the entirety of a given month All-time uniques = the ...
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0answers
300 views

Problem with x axis on swarmplot and added line with seaborn

I'm trying to add custom lines to seaborn swarmplot (based on this answer) and it seems that x axis is wrongly scaled. Data preparation: ...
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2answers
15k views

How to include labels in sns heatmap

I got this matrix ...
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2answers
661 views

Data cleaning and data transformation before EDA?

What is the most common order of data cleaning, data transformation and exploratory data analysis? For me it seems most logical to do data cleaning, then EDA and finally data transformation (encoding ...
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1answer
108 views

Understanding a Box plot

I have a dataset and I have tried plotting it in a box plot after loading the csv in usings pandas. The plot itself is given below. I need to understand why the x1 ...
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2answers
1k views

Why is a correlation matrix symmetric?

I'm sorry for being so weak in math. (I'm a student) For eg. this is a correlation matrix. ...
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1answer
104 views

Training with data of different shapes. Is padding an alternative?

I have a dataset of about 1k samples and I want to apply some unsuspervised techniques in order to clustering and visualization of these data. The data can be interpreted as a table of a spreadsheet ...
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0answers
644 views

plot the results from kmeans

I am trying to plot results from document (data source: twitter) clustering using python's sklearn. Below is 10-words of words belonging to each cluster: ...
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1answer
69 views

ggplot aes() choice

What is the difference between ggplot(mtcars, aes(mpg)) + geom_histogram(aes(y = ..density..)) and ...
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1answer
59 views

What to infer from a given scatter plot?

I am quite new to data science and I have been given the task to find relationship between two entities for a given data.This is the scatter plot graph I made It is a time series data.Here x axis is ...
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2answers
2k views

Plots with shaded standard deviation

What tools can I use to make a visualization similar to this one? I want to have the mean be bolded and the standard deviation be shaded.
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1answer
4k views

Stacked time series plot in python

In pandas I can set the date as index, and then run df.plot() to see a line chart. How do I make that line chart stacked as in the picture below?
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2answers
83 views

how to make moving moving graphs that vary in time like a video?

like this, like shown in this video https://www.youtube.com/watch?v=z2DHpW79w0Y&t=7s
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1answer
36 views

Can the 'bin size' in a histogram be thought of as a regularity constraint?

When thinking about a histogram as an estimate of the density function, is it reasonable to think of the bin size as a parameter that constrains the local structure of that function? Also, is there a ...
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2answers
1k views

Pandas grouped data to Bokeh graph

I'm having trouble graphing Pandas grouped data in Bokeh. ...
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0answers
163 views

Pandas bar formatting with timedelta64[ns] column

I'm formatting the display of a Pandas DataFrame using bar styling. I'd like to show a bars on both an integer column and a ...
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0answers
81 views

How to build a predictive model on Time series data [closed]

I have a time series data containing hotel occupancy rates from January 2014 to December 2017. I have run a forecasting model (Holtswinter in R). Now, I want to predict the significant external ...
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1answer
150 views

Visualizing Decision Tree of K-Nearest-Neighbours classifier

I'm using Sklearn's KNN to build a classifier and was wondering if there is any way to visualize the decision tree that the algorithm builds. Maybe something of this fashion
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2answers
5k views

How can I draw bar graph in python on aggregated data?

Normally when I draw bar plot its simple as ...
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1answer
38 views

Visualizing software metrics

I have the below sets of data per application, you can call them as software metrics. These metrics vary depending on the size of an application. ...
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2answers
2k views

When Should I Use ggplot2 Instead of Tableau? [closed]

I am a student getting started with Tableau for the first time. My proficiency with ggplot2 is intermediate. I can create custom versions of the most popular kinds of charts in ggplot2 but nothing too ...
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1answer
92 views

What is Big Data? [closed]

I want to know what is Big Data? Can I have practical example. How big data can be? I need numbers where big data term is applicable. If you can provide link for case study with actual numbers, with ...
4
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2answers
3k views

How to create interactive plot of thousands of images as output of t-SNE?

I have many images that I want to plot as a result of running t-SNE and I want to be able to interactively explore them. matplotlib does not allow enough interactivity to explore, and plotly is too ...
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1answer
39 views

Demoing data science work

To data scientists who use python for development, how do you demo your work? I used to demo my work in Shiny as my developments was mainly in R. Now I develop 99% in Python but not sure of the best ...
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1answer
83 views

Comparing data sets with different measurements

I'm currently writing a thesis based on Cyber Crime, however I'm unsure of the proper to compare/analyse my data sets to talk about them in my thesis. One piece of data (https://www.pandasecurity....
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1answer
303 views

Plots getting rid of whitespace

So I'm doing the Udemy course for Data Science in Python, and there's something weird happening with the plots. The first one in the above picture is mine, the second is the instructors. How do I ...
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1answer
91 views

What kind of Visualization is this?

Can anyone help identify what kind of Visualization this is? (google image search was not informative, unfortunately...)
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1answer
3k views

How to create 3D images from .nii file

What are .nii files, and how is data stored in them? I have some of these and I want to know how can I create 3D image of ...
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1answer
239 views

rectangular markers in bubble plot (Python)

I would like to make a 'bubble' plot, but with rectangular markers. Is it possible to do this in Python? On x-axis should be the day of the week (Mon, Tue, Wed,...), on y-axis - counts, how many ...