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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16 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
18 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
45 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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0answers
13 views
Similar plots of 2 closely related data sets
Suppose my data set contains 1000 observations and 10 variables. I consider 2 data sets: the original one and the one which contains only the first 5 variables (the number of observations is still the ...
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0answers
6 views
Superimposing regression lines from 2 simple linear regression models into one graph [closed]
SPSS question, really. Been asked to produce two simple linear regression models, one with an intercept, one without (both for one set of data points). But they have to be on one scatter plot for ...
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0answers
6 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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0answers
51 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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25 views
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21 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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0answers
21 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
1k views
Which statement is correct? [closed]
I know the correct answer is number 4, but can someone explain why?
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1answer
167 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
74 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
133 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
122 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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0answers
62 views
Interpretation scatter and cluster plots [closed]
I used the frequencies of different learning strategies that students mentioned in a 2x2 factorial within design (across 4 different situations) to draw up several plots in R. What I tried to find out ...
4
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2answers
287 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
87 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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0answers
26 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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0answers
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
6k views
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 ...
2
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3answers
146 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-...
1
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0answers
28 views
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 ...
5
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2answers
92 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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0answers
26 views
Plotting $\alpha \%$ prediction bands
After calculating the relative errors of some predicted value vs the real value, I've made a plot of the relative error vs some property of my dataset (in this case the size); As you can see, the ...
2
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1answer
276 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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0answers
178 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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0answers
110 views
Sensitivity analysis with scatter plots
I am trying to do a sensitivity analysis of a given model with several inputs using some given data. Let us call this model $f$ and write it as $ f(x_1,x_2,x_3)=y$.
The data given is represented in ...
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2answers
42 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
35 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 ...
5
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1answer
226 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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0answers
35 views
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 ...
0
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1answer
475 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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1answer
53 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
771 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
57 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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0answers
141 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
26 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
73 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 ...
6
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1answer
336 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
539 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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0answers
1k views
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
33 views
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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0answers
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
3k views
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....
4
votes
1answer
78 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 ...
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1answer
366 views
Spearman correlation signficant but scatter plot not?
For my data (based on 5-item numeric likert scales), I have tried to calculate correlations. As the data is not normally distributed (according to a Shapiro-Wilk test), I have used Spearman ...
-1
votes
1answer
229 views
How to plot error bars on a graph? [closed]
I'm sorry for a stupid question: 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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0answers
150 views
How to determine which variable goes on the y or x axis in a scatterplot [duplicate]
I am trying to do a scatterplot to see the relationship between the BMI of a female athlete and their Sum of skinfold. How do I know if the BMI is my X axis and the Sum of skinfold is my Y axis, or ...
1
vote
1answer
204 views
Is Plotting textual dataset in scatter plot after clustering the data reflect nature of data?
i have textual data points.. (1000+) text documents.. i used K-means to cluster these data, then used SVD method upon (TF-IDF matrix) then select the 2nd and 3d columns in VT matrix to represent these ...
