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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21 views

colour outliers from box plot in scatter plot r [migrated]

I captured outliers of Days variable of a dataset usairnew in bout as given below: ...
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8 views

plotting year versus day and month in r [closed]

I'm very new to R so please bear with me. I have included a google drive link to the dataset (csv file) I need help with: https://drive.google.com/file/d/1EJvUwgVQMsv-ztlUftavOaEPU_6M9FYl/view?usp=...
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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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18 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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2answers
6k views

Creating and interpreting Bland-Altman plot

Yesterday I heard of the Bland-Altman plot for the first time. I have to compare two methods of measuring blood pressure, and I need to produce a Bland-Altman plot. I am not sure if I get everything ...
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11 views

Different color points in R [migrated]

I have the following R-code, ...
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3answers
4k views

How can I remove the z-order bias of a coloured scatter plot?

I'm currently working on a plot engine for my project. This engine should be robust for a wide range of inputs. In order to analyse the data, I'm plotting a series of graphs utilising python/...
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9 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
23 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
1k views

How can I create a scatterplot in R using the plot function to control for covariates?

I would like to know if it is possible to create a scatterplot while controlling for covariates, such as in partial correlation. I am using R software and my code is below for the basic scatterplot. ...
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1answer
46 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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2answers
2k views

What is the correct method to calculate the Z score for the mean of a variable between two groups

I have two groups, 23 Patients and 27 controls with a list for their age and the head circumference measurements. I want to do scatter plot for the Z score of age by the Z score of head circumference. ...
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24 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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35 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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1answer
214 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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31 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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3answers
37 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
1k views

Polynomial fit: removing outliers

I want to fit a scatter plot with a polynomial, and find the correlation between two variables. 1) How can I define and remove outliers from data points? (in the figure the outliers on the right ...
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1answer
33 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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8 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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1answer
519 views

Researching non-linear correlations through scatter matrix

I am trying to understand the correlations among three explanatory variables of commercials and response variable sales through the scatter plot matrix. It seems like there are non linear ...
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1answer
349 views

How to plot error bars on a graph? [closed]

How to plot error bars on a graph in R? Assume I have 3 columns in a table: x, y, errors of measured y. What kind of plot should I use?
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23 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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42 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
156 views

What is this visualisation called? Scatter plot with quadrants and confidence intervals

This is a question about data visualisation - I am sorry that it is probably quite elementary and possibly only just relevant to CrossValidated. I would like to create a figure that will help people ...
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1answer
40 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
45 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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1answer
93 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
67 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
36 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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26 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
62 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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16 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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2answers
91 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
345 views

What is the difference between a Lag plot and a Poincare plot?

So I recently came across Poincaré plots (Wiki) which plots x(t) against x(t+1). Thereafter I found out about lag plots (Description)which seem to do the same thing just the other way around, i.e. x(t)...
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1answer
94 views

Ways to show how well or badly predicted data reflect observed data

I have observed rainfall data and would like to know how well they represent the predicted data. My first idea was to show the data on a scatter plot. Plotting x =observed vs y = predicted I set the ...
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47 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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42 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
354 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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1answer
2k views

Scatter plot with two factor variables for black and white print

How can I best represent a scatter plot with two different factor variables. Consider the example problem, ...
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0answers
44 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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27 views

Scatter plot and mathematical analysis

I gathered data and with the results created a scatter plot, however, the only analysis I have done is just by analysing the graph without showing any mathematical terms. Is it possible to analyse ...

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