Questions tagged [scatterplot]

Pairs of (x,y) values plotted as points in Cartesian coordinates. Widely used as an exploratory and diagnostic tool.

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7 views

Explaination behind the relation between the correlataion coefficient and distance of a typical point from the standard deviation line

I am reading a textbook on statists by Freedman, Pisani, and Purves. In one of the chapters about correlation between two variables, it is given that the vertical distance of a typical point from the ...
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17 views

Variabile importance in cluster analysis

I need to find out which variables matter the most in a cluster analysis. I've used k-means on my dataset and, according to elbow method, I choose K = 2. Then I used a pair plot of the variables to ...
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1answer
56 views

Can a 4D perceptron be plotted in 2 dimensions?

I am wondering if it is at all possible to plot a 4D perceptron line in 2D. Obviously, it would be impossible to observe it with all of its original information, but is there a way for me to observe ...
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53 views

Is it possible to detect outliers in two related columns [duplicate]

I have pandas data frame which has some related columns, like let's say I have a column that showing housing sale prices and other column shows total area of that house. If I look for outliers alone ...
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1answer
24 views

Help on understanding these plots

I am very weak in the english language and I need to understand how I can describe my plots. It's the best way for me to learn, understand plots and memorize the phrases. So my first question is, ...
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1answer
23 views

What do the class-specific numbers mean in this scatter plot matrix? (Made using the R function ggpairs)

I found some code online that uses the ggpairs() function from R to draw a scatter plot matrix for the famous iris dataset. ...
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22 views

can a linear classifier based on two variables separate a dummy variable?

i have this problem : as you can see, on the x-axis there is the variable age and on y-axis there is the wkswrkd which is ...
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20 views

Trying to plot a dummy variable over a dataset

Hy everyone, im new to ds, so please,be kind. i've this dataset ...
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11 views

What is the best way to visualize IE matrix data?

I have this table and I wondering which is the best way to visualize these data? Using the R script below I have managed to produce a simple scatter plot to visualize the ...
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1answer
26 views

Explanation of plot() function in R [closed]

I am trying to plot two variables x,y by running the script below ...
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6 views

Scale's influence on plotted variables' relationship

Does it matter if the x and y scales are incremented differently across the same physical length of a graph when determining a relationship between variables? I have tried 2 representations (both ...
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1answer
50 views

Problematic residual plot

I have created a linear model in R, and then plotted the residuals. If my residual plot looks like this, then which model assumptions are not appropriate?
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25 views

Relationship between two numeric variables

I am have been looking over my undergraduate statistics notes about the relationship between two numeric variables, but I am baffled regarding what the relationship this graph is showing? From my ...
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46 views

Statistical test for scatter plot

Hello, I have a graph where I have plotted some values in the four quadrants. I want to show that the number of points in the 3rd quadrant is more than the rest, not just by random chance. What kind ...
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34 views

How to plot categories after clustering

I am trying to plot the categories I have obtained via DBSCAN on a 30-dimensional dataset 12 categories, and I want to visualize them in a 2d plot. My procedure was to reduce that 30-dimensional ...
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1answer
48 views

In making scatterplot for correlations between two continuous variables, can we use the choice cubic instead of linear choice [closed]

In making scatterplot for correlations between two continuous variables, can we use the choice cubic instead of linear choice in "create a fit line at total", as shown in the copied Figure, please? ...
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39 views

Rationale for elliptical region of correlations in gene expression data

I am analysing an RNA seq data set and I am trying to look at correlation between expression values of significant genes in 4 different biological duplicates and their clinical parameters. Here, I ...
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1answer
46 views

Graphing a fit line through existing scatter plot [closed]

I've got a scatter plot of two continuous variables and they are labelled 0 or 1 depending on a third binary variable. I would like to draw a fit line through the 0's and the 1's on my scatter plot. ...
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10 views

Cluster shows no specific trend, more robust techniques needed? or would it just be not having enough predictive data

I have been working on an ML model, the data is about user customer desk tickets. To start easy, I decided to classify (if possible) users who are likely to raise support tickets. My positive class is ...
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30 views

… This is random, right? [closed]

The X and Y axis are predictor variables, and the response is 1 (the + sign) or 0 (the circles). I shouldn't explore this further, right? There's no way to predict for 1's?
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1answer
40 views

Determining which variable is the cause and which one is the effect

I'm working on my assignment and I'm a bit lost. So the assignment requires us to draw a scatter plot based on data that we collected online. The purpose of the assignment is to see if higher earnings ...
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25 views

Finding Patterns In a 3D Plot

I am starting to use 3D graphs to visualize relationships in my data. The reason I am doing this is to try and maximize my predictor variables. Since I am working with financial data the relationships ...
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51 views

How can I make a scatterplot with two grouping variables (group and subgroup)? [closed]

I'd like to make a scatterplot with my dependent variable (scores on test A) on the y-axis, age (continuous) on the x-as and group (autism vs. control) as grouping variable, but also subgroup (people ...
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1answer
68 views

Interpretation of scatterplot of rank of variables

I am unsure how to interpret the second of two scatterplots I created. The first scatterplot shows a slight negative correlation between the variables (n=14, population not sample). This ...
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1answer
65 views

Relationship between the variable on X-axis with the one on Y-axis

I have two graphs here and I would like to know if there is a relationship between the variable on X-axis with the one on Y-axis of each of the graphs.
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95 views

How to eliminate the influence of heteroscedasticity

As I want to find an approximately linear relationship between $x$ and $y$, how to transform this scatter plot with heteroscedasticity into an approximately linear model? If this cannot be ...
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3answers
94 views

What can I do to improve this plot to get a better idea of what the correlation is like in my data?

In R I've typed the following code to get my scatterplots but the plots are all very bunched up: ...
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2answers
39 views

check for noncorrelation of normal pseudo random numbers using scatterplot

pseudo random number generators should give as output random sequences u1, u2, ... that are independent and identically distribuited (iid). Since testing for independence is not easy, the first check ...
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18 views

when to give up in fitting a variable? [duplicate]

I would like to predict a variable from 5 features. I have bad scores (<50%) with all the algorithm I tried (Random Forest, Lasso, SGD, MLP). I would like to quantitatively assess if I should ...
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1answer
215 views

Should I do a regression analysis even if the variables do not seem to be associated at all?

One of my hypotheses is that Variable A and B predict Variable C, so I want to perfom regression analyses. My questions for this example: 1) Should I perform two separate simple linear regressions or ...
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46 views

Interpreting Non-Linear Relationship from Scatter Plot

The scatter plot that I have seems very likely to have a non-linear relationship. I would like to know what is the best way to explain the relationship between both variables in the scatter plot below ...
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1answer
63 views

Scatter Plot - Basics [closed]

I am stuck in understanding a basic scatter plot. I am working in two dimensions i.e. there are two variables X & Y. So, the question is that in the scatter plot, what do the two axes mean? ...
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1answer
22 views

Plotting series of numbers while protecting privacy

I have 2 series of numbers e.g x=[1,3,4,6,9] y=[100,179,210,400,650]. I want to plot them and show that plot in a manuscript. However, these numbers represent some private information and hence I don'...
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62 views

How histograms help in understanding data and what roles do they play in selecting features before creating a model

I am new to machine learning and what ever I study related to it has an advice that we should understand the data and select features wisely before start creating the model. For this they demonstrate ...
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43 views

scatterplot in 3d

I have several points in $\mathbb{R}^{3}$. When I create a 3D scatterplot of the points, they seem to lie on an ellipsoid as shown in the above plot. How do I interpret the plot ? Does it indicate ...
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14 views

Explanation of Spearman values

please check if I understood correctly. (for your information 1- youngest, 7-oldest) Spearman's rho informs that the correlation is negative, which means the older the age group the less points it ...
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1answer
361 views

Is it good to plot a scatterplot with weird regression line? [closed]

Am a beginner in data analysis and i feel that something about these graphs are wrong. Am not sure that the outliers are the issue or am doing this the wrong way. Thanks for the help
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67 views

Density boundaries in a scatter plot

Let's say I have a scatter plot with (X, Y) real numbers. Looking at the scatter plot I see a clear boundary, a curve or a line that I could sketch so that the density of points below the line is ...
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1answer
1k views

How to interpret a vertical/horizontal scatter plot?

This is a scatter plot of observations of the two variables indicated on the axes. How do you interpret it? My understanding of correlation/scatter plots comes from this standard explanatory image: ...
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1answer
90 views

proper way to scale and plot data points on top of each other

I hope this is the right place that I am posting this question. If not please feel free to comment so that I find the right place. I have 4 sets of points that represent points on hexagons. My data ...
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26 views

Bootstrap resulted in something that looks like a mixed distribution. What do?

TLDR Bootstrapping resulted in a crazy scatterplot. Totally clueless here. I have a dataset (not going to say much about it, it is a bit confidential), running a Markov chain-based algorithm on the ...
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32 views

plot two groups of wind direction [closed]

I have two groups of wind direction and I want to use spoke plot in R peogramme I search about it in R programme using ?spoke plot but i cant found any information . for more detials the first ...
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2answers
100 views

How to partially compress domain of a scatter plot?

I am not sure where should I place this question. It is a more general question. My question is: I have scatter plot with 1 million points. I am using R to plot my data. When I plot my data points, ...
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2answers
4k views

Which statement is correct? [closed]

I know the correct answer is number 4, but can someone explain why?
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1answer
1k views

When adding jitter a scatterplot for conveying information is appropriate

"Jittering" is adding a bit of random noise to scatterplots, to better see the information contained in the data, usually when there is a lot of overplotting. This overplotting can result from e.g. ...
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1answer
143 views

Intuition behind normal probability plots?

I'm studying for an exam in experimental design. I know from previous exams that I will need to construct normal probability plots manually but strangely, this hasn't been mentioned in the literature. ...
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1answer
161 views

Correlation, Scatter graph [closed]

I have river flow rates for two separate rivers The data produced this scatter graph for both rivers https://i.imgur.com/jVnWF3t.png What is the best type of correlation to use here? Spearman, ...
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1answer
128 views

Which type of correlation should I use here? [closed]

For this data, I am looking at the relationship between bee population (1000s of bees) and area of genetically modified crops (km2). I have generated a scatter graph using this data: Question: What ...
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2answers
656 views

How to represent the probability of a point belonging to a cluster?

I want to do a scatter plot with a two-dimensional dataset. Suppose I have only 3 clusters. Then, I could assign each cluster a color of these: red, green and blue. If soft-assignment was made, then ...

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