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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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Intensity outliers/anomalies in 2D plot

I wonder what kind of method better to use to see outliers on z value of 2D plot. For example, I have measurements of x and y values both in range of 1 to 16 with step of 1. Next I calculate how many ...
Zoomman's user avatar
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Is there a statistical reason why I have diagonal lines in log2FC correlation plots?

I have created a de novo RNA-seq assembly using Trinity with samples from 4 treatment groups and then ran a DEG analysis on each pairwise combination of the 4 groups. Then, I looked at how DEGs that ...
JanayF's user avatar
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1 answer
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How to find relationship between a categorical nominal variable and numerical variable? [closed]

I am interested in finding the relationship between a nominal categorical variable and a numerical variable. We can't use scatter diagrams, or measurements of correlations for finding such ...
Main's user avatar
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Visualize Cronbach's alpha in R Ggplot scatterplot as a regression line? [closed]

I'm looking for a way to make a scatterplot of the correlation between two questionnaires using Cronbach's alpha: Data: ...
Wandering_geek's user avatar
2 votes
1 answer
312 views

Why do my residual plot and scatterplot look the same and what does this mean?

I am investigating the relationship between device usage and screen time for my math assignment (my last ever high school math assignment, yay!), but after creating the residual plot, I realised it ...
Luca's user avatar
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1 vote
2 answers
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Dataset with two unique trends?

I have a scatterplot displaying one data set that, at first glance, has a weak negative correlation. Upon further inspection, however, it appears that the data set shows two stronger linear trends ...
houseofguitars's user avatar
0 votes
1 answer
29 views

What is MA-contour plots? [closed]

I recently read a paper describe their result with MA-contour plots, I did some searches, but most of the information I could get was about the results of ...
zhang's user avatar
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7 votes
3 answers
633 views

Should You Specify a Curvilinear/Non-Linear Effect If You Suspect It is Spurious?

Consider the following (simplified) example of a project I am working on: I assume that $X$ has a linear effect on $Y$. However, after plotting the relationship on a scatter plot, it looks like the ...
Brian Lookabaugh's user avatar
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28 views

Interpreting a basic scatter plot [duplicate]

I am trying to interpret this pretty basic scatter plot but am new to this so I don't want to get it wrong. Is it fair to say that there appears to be a moderate positive relationship between the two ...
mlee's user avatar
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24 views

Plots for values that are discontinued

I have a series of data that express the change of a quantity over time. However, one of its characteristics is that at some points of time, there is no data. If I plot this value over time I have: ...
KansaiRobot's user avatar
1 vote
1 answer
57 views

Scatterplot relationship between dependent and independent variable for linear regression analysis

I am performing an univariate linear regression analysis. Before running the model I was always told to get an idea of the relationship between the independent and dependent variable through a ...
fredi96's user avatar
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1 vote
1 answer
234 views

How to Interpret scatter plot for binary response?

I have come to know about scatterplot matrices, where pairwise scatterplots for covariates are built and then binary responses are jittered. This plot is helpful to give an idea about how each ...
Ly T's user avatar
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1 vote
1 answer
193 views

Understanding the Difference Between Independent and Dependent Variables

I'm new to statistics and I'm struggling to grasp the distinction between an independent and a dependent variable. For instance, if I want to examine the correlation between daily COVID-related deaths ...
Diana Mele's user avatar
1 vote
0 answers
34 views

I want to know how this graph is being created? [closed]

I found this plot in a paper. I have found similar plots in other papers from the same team. It is basically the comparison of MODIS C6 and C5 products with AERONET. I wanted to understand what that '...
Ray's user avatar
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1 vote
1 answer
53 views

Is there a name for data that, when plotted, seem to have two (or more) distinct trends?

I have the following plot, which appears to have two pretty distinct trends. The plots shown here and here depict similar situations. Is there a name for data that have two or more distinct trends, ...
David Moore's user avatar
3 votes
1 answer
465 views

Visualising scatterplot with too many points and two or more groups

I am trying to plot data with a large number of points. The goal is to see the basic distribution - location, dispersion, shape - of the observations. With a simple scatterplot, even with low ...
TY Lim's user avatar
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2 votes
1 answer
318 views

Boxplot or Scatterplot?

I created boxplots for 5 traits to show the spread of true age for each variant of each trait in both samples between 2 observers: A professor suggested that I should use scatterplot of Price vs Kim ...
user34930's user avatar
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What is the name of a plot that looks at the effect of ony one variable in a regression model? [duplicate]

In short: what is the name of the type of plot below? These seem like standard plots, so I don't want to rename them by accident (I'm giving a presentation on this). The code itself does not matter ...
cgmil's user avatar
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6 votes
4 answers
857 views

Are there any statistics to see if a categorical variable produces good segments within a scatter plot? [closed]

Within a scatterplot of two continuous variables. I am looking for a statistical method to determine if a 3rd variable that has a limited number of categories/groups (3-8) is able to produce visually ...
Majte's user avatar
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2 votes
0 answers
372 views

How to handle triangle-shaped scatterplot of data?

Over the past year, I have tried to record my productivity in the following way: The first yellow mark is the time I "clock in", or start working for the day. For the five minutes of work ...
Shawn Hemelstrand's user avatar
1 vote
1 answer
757 views

Is it possible to create a scatterplot that adjusts for controlled variables (e.g. linear regression)

I am pretty familiar with linear regression analysis, but not about how to generate plots using it (aside from residuals, etc.). I'd like to create a scatter plot of two variables, say depression and ...
MSP's user avatar
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1 vote
1 answer
452 views

Interpreting 2 residuals plots [closed]

Hello. Can anyone help me with interpreting these plots? I would like to know what assumptions of the linear model are not being met and what method should be used to fix the problems. I think there ...
Mdddl's user avatar
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2 votes
1 answer
60 views

Is there a name for these lines on a plot?

I'm working with plots for which I'm finding the maximum point and labelling the x and y values at which it occurs: My question is, is there an 'official' name for the red dashed lines that extend ...
Jim421616's user avatar
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0 answers
35 views

Is this relationship between variables linear?

I have four research questions and all of them has the same main "independent variable", as such the relationship between x and y1, y2, y3, y4. This is not a multivariate analysis, I am just ...
LKho's user avatar
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6 votes
3 answers
1k views

Alternatives to scatterplot for visualisation for large samples

I would like to visualise the following scatterplot in a different way that would make it more intuitive. The X axis is trading frequency and describes how many trades were conducted whereas the Yaxis ...
magisterludi's user avatar
0 votes
0 answers
301 views

Scatter Plot Interpretation for Temperature and Precipitation

The precipitation data points don't make a straight line along the blue regression line and most of them are present between 24.25-25.25 °C (approximately). What does this tell me about the ...
Ed_Gravy's user avatar
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2 votes
1 answer
1k views

Clustering leading to visually overlapping clusters on scatterplot

I am dealing with a dataset with 13 features. After going through some standard scaling and missing data imputation, I use kmeans from sklearn to create clusters. Now the point is that, although the ...
wanna_be_quant's user avatar
0 votes
0 answers
150 views

funnel-shaped scatterplot - looking for similar statistical methods than correlation or regression

I believe I am looking up wrong keyterms when searching for solutions, so i'd appreciate some help. initial situation: I want to analyse if specific forest stands are more prone to deer damage using ...
Paula_123's user avatar
1 vote
1 answer
130 views

Does this scatterplot indicate homoscedasticity?

Can anyone perhaps confirm if it is true that this scatterplot indicates that my data is homoscedastic? Since there are quite some more datapoints on the upper side, I was a bit hesitating. Thanks a ...
Emma's user avatar
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3 votes
1 answer
337 views

What jitter value should I use for this scatter plot?

I plotted a scatterplot between humidity and temperature (air) in centigrade. I got the following graph; It is evident that the points fall in discrete columns. This might be because of the rounding ...
Ritik P. Nayak's user avatar
2 votes
2 answers
2k views

What is the best way to visualise a panel regression?

Simple scatter plots or a correlation matrix can be misleading since they aggregate all years together. What would be te best way to visualise relationships between variables taking time into account? ...
Peter Jordanson's user avatar
2 votes
1 answer
2k views

What is the best way to represent Spearman’s correlation graphically?

For my thesis research I have to do Spearman’s correlation tests on a set of ordinal variables. I would like to represent the correlations graphically to include them in the report and give a clearer ...
balzy's user avatar
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0 votes
0 answers
105 views

How to perform a breakpoint analysis on these two variables (Survey Score and Total # of Outages)?

Here is a snippet of the data: I believe both of these are discrete variables. I want to first determine if a correlation exists. Would I utilize Kendall’s Rank Correlation? Second, I want to create ...
CharacterCook9's user avatar
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0 answers
70 views

spearman correlation: should only the ranked values be plotted on a scatterplot?

My data is not normally distributed and so I did a spearman correlation rank test. I now need to make a scatterplot showing the spearman rank test results and I am not sure if the scatterplot should ...
Megan Beaumont's user avatar
1 vote
1 answer
126 views

Linear regression assumptions violated

I have an independent variable hours/day sitting and a dependent variable test scores, I think all of the assumptions of linear regression are violated, as in the pictures that I added So I did one ...
Stats34's user avatar
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-1 votes
1 answer
43 views

Mathematical rule for choosing X & Y for scatterplot maximising spread of points [closed]

Is there any method for choosing a combination of X and Y dimensions for a scatterplot, from a larger dataset that has been standardized to be centered at zero and have unit variance, that will ...
user124123's user avatar
0 votes
3 answers
3k views

Spearman correlation test and linear relationship vs monotonic relationship?

I want to use Spearman's correlation test. My data is not normally distributed. Below is a scatterplot of this data. I read somewhere that Spearman's correlation coefficient can describe monotonic ...
kaka's user avatar
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0 answers
60 views

How to display error on a 2d median

Below is a 2d scatter plot where the large green dot is the median of the data in x and y. My question is about whether there is a convention for showing the error on the median. As shown, each of the ...
Scott's user avatar
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1 vote
1 answer
868 views

Can the Response Variable ever be used in Clustering?

I have the following question: Can the response variable ever be used in a clustering algorithm? I understand that in general, clustering is considered to be an "unsupervised learning algorithm&...
stats_noob's user avatar
1 vote
1 answer
63 views

What kind of correlation is this?

I was wondering whether these 2 variables are correlated. According to the analysis, the correlation is 0.89, which is expected, as they are items of the same scale. But I'm having trouble with ...
iic's user avatar
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1 vote
1 answer
610 views

Downward slope but Spearman correlation coefficient is positive and vice versa

Why the slope and the Rho value not the same? For examples, graph H-DSI shows downward slope but the Rho value is positive (P value=0.9603; r=0.009867). Hope someone can explain it. Thank you. H DSI ...
Mei's user avatar
  • 13
2 votes
2 answers
91 views

How do i interpret this Scatter Plot [closed]

I'm researching on the relationship between Scholarship and years. I have scatter plot below. The x axis is equal to the total amount of scholarship for a student. The y axis show the term a student ...
Jay LIm's user avatar
  • 21
3 votes
1 answer
130 views

How to interpret this scatter plot?

I am simulating a population of binary stars by generating many samples of orbital parameters. I'm investigating the relationship between the inclination of the orbit and the fraction of the ...
Sofia Splawska's user avatar
1 vote
0 answers
105 views

How do I draw polygons in a scatterplot around groups of points based on a factor other than the factor my colors are based on? [closed]

I pasted the data here: The dataframe contains multiple observations on x and y per country. Each country is also part of a region. Based on this post, I managed to draw ploygons/clusters in the ...
cornel's user avatar
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1 vote
0 answers
125 views

Visualising a standard multiple regression

I am running a standard multiple regression for my research project. I have 4 predictor variables trying to predict one outcome variable. I've run the analysis in SPSS but Im not sure how I can ...
ajgi2235's user avatar
1 vote
0 answers
45 views

Find skewness and kurtosis of a bivariate scatterplot

I was reading this paper in the medical field which proposes a method using two radiological parameters in order to distinguish benign and malignant lesions. In their paper the Authors show this plot ...
GGA's user avatar
  • 473
2 votes
1 answer
91 views

Sampling the inside of a curve [closed]

Suppose I have a set of points $S$ in the plane, which defines a curve in a discretized fashion. This could be $3\cdot 10^3$ points on the unit circle: But also could be $3\cdot 10^3$ points ...
NoVariation's user avatar
  • 1,369
0 votes
1 answer
113 views

Is it a line graph if it has no lines?

I'm trying to find the correct terminology for the default plt.plot() method from Python's matplotlib. It appears to behave like ...
Robin Andrews's user avatar
1 vote
0 answers
23 views

Good measures to quantify the effect of outliers

I have two random quantities linked to a set of N random variables. Increasing N The two random quantities should gradually become similar (meaning that the 2 distributions narrows around the same ...
user1172131's user avatar
0 votes
0 answers
25 views

How do I find a threshold to minimise some values? Relevant graph included

I am trying to solve two sub problems based on this graph. My overarching problem is to predict the coordinates of a point, and give a confidence to the prediction. The y-axis is kind of arbitrary, ...
statsuser's user avatar

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