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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54 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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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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27 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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29 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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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
347 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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28 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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25 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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1answer
201 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
54 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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10 views

How to create a scatter plot & regression line with the model-implied results (instead of raw data)

i am trying to create a scatterplot (x = personality, y = well-being) with regression lines for neuroticism and extraversion. I have tested this with longitudinal well-being data. Now I would like to ...
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115 views

Probability Plot for Ordinal Logistic Regression on SPSS

I would like to draw a plot of my predictor variable (continuous) vs. the probability of my outcome variable (4 ordinal levels) on SPSS. I have run the simple, usual PLUM model but there is no direct ...
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30 views

How to describe this scatterplot? [closed]

How can I describe this scatterplot?
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22 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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29 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
72 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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3k views

Which statement is correct? [closed]

I know the correct answer is number 4, but can someone explain why?
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1answer
559 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
101 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
147 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
124 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
457 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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1answer
111 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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38 views

Visualizing clustering on 2D binary data [duplicate]

I have a 2D binary array (size 1445 by 120), which I have clustered into 10 clusters using Python's AgglomerativeClustering method. Each of the 1445 samples is given a cluster index of a number from 0-...
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21 views

Get rid of the disrupting points

Here on the following picture, we can identify two clouds. We can identify a lot of points that are out of the two clouds and can disrupt a bit the the training and test accuracy (%). Is there an ...
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2answers
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How to plot binary (presence/absence - 1/0) data against continuous variables [duplicate]

I am trying to plot presence/absence (1/0) of a sample species against various environmental variables. I have put presence/absence on the y-axis and the environmental variable (in this case ...
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3answers
167 views

Meaning of this scatter plot

I have two types of treatment, a and b, and I want to know if one is more painful than the other. I can apply both treatments to each patient, and ask for the pain experienced with each on a scale 0-...
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Time graphics (and time is not a dependent variable!)

I have a dependent variable that are correlated with the passage of days (1, 2, 3, ...). But I fitted a linear model without days/time, because I am more interested in other things I can influence ...
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2answers
98 views

Do “splits” in scatterplots indicate anything?

Background I'm exploring how 7 system parameters spanning mechanical, electrical, and physical (size) properties are related. I gathered the 7 specs of 36 different systems, and I plotted every ...
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1answer
412 views

How to interpret draftsman plot

I've conduct some draftsman plot to find the correlation between variables. And I got this kind of result. But I don't understand how to interpret the data. What is the different between the color? ...
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245 views

Get rotation of noisy rectangular 2d point cloud with pca

I have a set of point clouds in nd space. The clouds tend to be rectangular in nature in 2d space but can easily have outliers or look slighly L shaped. I would like to rotate the point clouds so that ...
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2answers
46 views

Test for relationship between variables

I want to describe the relationship between pairs of continuous variables. I know this is commonly done just by looking at a scatterplot, but I think this is not appropriate for my problem, because (1)...
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0answers
101 views

How could forcing my regression line to go through the origin increase the R^2? [duplicate]

I created the scatterplot on the left in Tableau and ran the regression line, which resulted in an R^2 of 0.63 (confirmed this in excel as well). Then, I used the "Force y-intercept to zero" option ...
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1answer
267 views

Is there a specific name for this plot?

This plot represents the popularity of technologies in two "tools", vue and react. In left-top corner are specific technologies for vue but not for react, right-top technologies popular in both tools ...
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Does taking Ln of dependent variable improve assumptions of a multiple regression?

I have run two multiple regressions in R, one with average abundance as dependent variable, and one with log avg abundance as dependent variable. With the given plots, can we say one of the two ...
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1answer
647 views

Distance between all the dots in a scatterplot in R [closed]

Is there any possibility in R to get a list of distances between all the points in a Scatterplot? For instance, this Scatterplot: So, I would like to obtain a list of distances among all the points.
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56 views

Lemma about multivariate statistics

I am trying to prove a lemma. Consider $X_1,.,X_n$ to be i.i.d random variables. Show that, in particular: $$E\|\hat{\mu}-\mu \|^2=\frac{1}{n}\text{trace}(\Sigma)$$ I have the following partial ...
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2answers
991 views

Count points in each quadrant of a scatterplot [closed]

I'm an R noob, please bear with me. I'm using R to plot data in a scatterplot along with 2 gridlines separating the plot into 4 quadrants. I'd like to count the number of data points in each ...
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1answer
76 views

How to cope with scatter matrices of a lot of features?

Pandas scatter_matrix is a great tool for finding correlation between different features - but it's only readable if the number is small. What way do I have to find ...
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172 views

How to interpret pattern in this scatter plot?

How could you interpret the clear pattern that appears in each plot, in which it seems the points are very well aligned? The dataset is Olives, from ...
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1answer
27 views

Is there a way to calculate the coefficient determination if the values of x and y are not given?

so I am having a problem to calculate the r-squared because the values of the variable (y and x) are not given in the question. All I have is the mean and the standard deviation of each variable as ...
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1answer
86 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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1answer
364 views

Connecting scatter plots with linear interpolation?

Given the decision that on a scatter plot the data points will be connected (just as an example, let's say we're talking about students attending class per week), is it more correct to connect the ...
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2answers
676 views

how to interpret a scatter plot below?

Below is the scatter plot of Brightness temperature on Y axis and corresponding Rainfall rate from TRMM satellite image on the x-axis. I want to know if there is a relationship between the two. If yes,...
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Why does a scattered residual plot indicate a strong linear model?

I'm in AP Statistics, an introductory college course taught at high school. We learned that if a residual plot has a pattern, we must re-express the data until the residual plot is scattered. This is ...
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2answers
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How do I graph this data with a simple scatterplot?

My data looks like this: I want to see how weight is distributed. How do I do this? This just gives me a weird line: plot(nc['weight']) That isn't right. Any ...
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35 views

What is a type of graph that's graphing only 1 type of value on a grid?

What is a type of graph that's graphing only 1 type of value on a grid? Like, say, you have an ice cream seller, and you collect all the prices for the ice cream, but you somehow don't have any other ...
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5answers
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How do I interpret this Scatter Plot?

I have a scatter plot which has sample size which is equal to the number of people on x axis and median salary on y axis, I am trying to find out if the sample size has any effect on the median salary....
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1answer
80 views

Number of distinct scatterplots among $p$ variables

In Chapter 2 Section 2.1.4 of An Introduction to Statistical Learning (James et al, 2013), the assertion is made that "...if there are p variables in our data set, then p(p-1)/2 distinct scatter plots ...