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Constructing meaningful and useful graphical representations of data. (If your question is only about how to get particular software to produce a specific effect, then it is likely not on topic here.)

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19 views

Linear discriminant analysis model plot in R [on hold]

I'm reading the Introduction to statistical learning with R currently, but I blocked through a Lab about Discriminant analysis. So the thing is that we trying to fit a linear discriminant analysis ...
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1answer
10 views

Representing multiple categories and dynamic visualization on a chart

I'm currently dealing with a heavy set of data, and I'd love to see a way to represent the variations between each set. To give you a good idea of what I'm doing, I'm having a few methods that are ...
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1answer
17 views

How to visualize differences between groups based on category?

I have two datasets of schoolchildren performance by height in cm, one for each school. I was wondering how to best visualize how the differences in the performance between the schools vary by grade. ...
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0answers
14 views

Persistent Homology of High dimensional data

I'm new to Python (and to coding in general), so this question may be trivial. I need to compute persistent homology for a high dimensional dataset ( d ~ 1000) embedded in a vector space, but I'm ...
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0answers
8 views

Factor Graphs and Sum-Product Algorithm

I am trying to study Factor Graphs and the Sum-Product Algorithm. I'm having a hard time understanding what are these factors. For instance, when I see something like $$ f(x_1, x_2, x_3, x_4, x_5) = ...
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0answers
37 views

What is the plot of the difference of joint distribution from independent joint distribution?

I wanted to plot the scatter-plot of many many data points for EDA but just got a big black blob. So I used density contours, and heatmaps aka 2d histograms. Better Example 2d histogram was not ...
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0answers
7 views

Log scale for Y axis in scatter3D (Car) or any 3D plot packages in R something similar to that generated in excel?

am trying to set up the Y axis to be in Log2 or Log10 scale in scattter3D, but I have not been able to do it. Is there any way to plot Log scale for the Y axis keeping the original values as done in ...
3
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2answers
82 views

When checking for normality, would you prefer numerical methods or graphical methods?

I would like to know what is your preferred way to decide when the deviation from the normal distribution is relevant. when saying "relevant", I not saying necessarily "statistically significant". ...
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0answers
10 views

Inconsistent autocorrelation plots

I used pandas.tools.plotting.autocorrelation_plot in Python to plot autocorrelation functions of the same time series: for its first 100 and 1000 entries, respectively (code below). ...
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0answers
15 views

Correct Interpretation of copula contour plots

Going into exploratory data analysis with the intention of fitting copula models, I was looking at the famous copula and they mention here that either contour or 3D ...
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0answers
23 views

Box plots for non-negative data

What would be the best way to visualize data (in 1 dimension) drawn from a distribution that has only positive values such as the Chi-Squared distribution? A box plot would draw a whisker below 0 ...
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1answer
11 views

Way of graphic representation of Mean +/- SEM data

I have some experimental data (5-15) observations per group. I want to present it as mean $\pm$ SEM. I know 2 common ways to do it: But, for some reasons, I want something else. Could You provide ...
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0answers
8 views

linear graph for 2 datasets one with 100s legend and the other with millions

I ran into an issue that I have to display the correlation between 2 lines in 1 graph chart, the problem is 1 line values are within hundreds, the other line values are millions. I do not care about ...
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0answers
6 views

Plot categorical vs continuous variables (In general and specifically javascript)

I asked this question on stack overflow, but I think it is better asked here, so I migrated: We are working on a web project were we want to plot continuous vs categorical variables. I usually work ...
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0answers
11 views

R studio - How to group data in a panel by year and sum them [migrated]

I have a panel dataset for 20 years and 10 companies. For every company I have data on sales in Europe and the US. I would like to plot the overall sales in Europe and the US for every year. ...
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1answer
17 views

Forecasting plot -adding fitting and validation area

I refer to the link: http://kourentzes.com/forecasting/2016/06/17/how-to-choose-a-forecast-for-your-time-series/#comments How should i add fitting and validation area in the plot, according to the ...
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0answers
10 views

Plotting interaction of categorical predictor and continuous modifier

I fit a GEE model examining the interaction between my predictor: heading quartile (categorical- dummy coded) and a moderator variable: head circumference (continuous). I would like to visualize the ...
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0answers
20 views

Is Data Visualisation important for implementing Neural Networks?

The main reason I am asking this question because I thought, If neural networks are so powerful, why would it care about what distribution does a feature follows? This might be a very obvious and ...
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1answer
24 views

multiple plots with r [closed]

Any ideas how I can obtain the following plot by using r?
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1answer
57 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. ...
0
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1answer
48 views

How to plot $X=|1-2y|$ in R? [closed]

Suppose if i know the plot of $x$ set.seed(650) x = c(rnorm(100)) Index = 1:100 plot(Index,x, type = "l") Since, $X = |1-2Y|$. Thus, $\pm X = 1-2Y$. So, $Y = \...
2
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0answers
37 views

Quantify MCMC chain mixing

I'm running an MCMC process with several parallel chains (often hundreds). To improve the visibility of the final plot, I only want to plot two chains per parameter: ideally the "best" and "worst" ...
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0answers
10 views

Plotting fitted lines for two different groups from a glm model with an interaction [migrated]

I have the following model: mod <- glm(data=data, events ~ treatment * size, family = quasipoisson) With the following output: ...
1
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1answer
27 views

Non-normality in the error term

The above graph is taken from a sample of 3796 observations. You're asked to run a regression of ed on dist which gives " ed = 13.96 - 0.07*dist " Then he asks, which assumption of the CLNRM ...
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0answers
9 views

How to create a line chart in R with x axis labels that are dates from table data? [migrated]

I have a large data set which contains observations made on different dates. I would like to visualize in R the frequency of observations based on the month in which they were made. I used table to ...
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0answers
7 views

How to set free facet_wrap y-axis range so that it caps the maximum data point? [migrated]

I have one face_wrap plot (three subplots) and I am satisfied with all the elements except for one thing: the two y-axis in the middle and bottom plot they don't cap the maximum data point. I don't ...
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0answers
27 views

What is the name of this type of plot and what does the shape of the bell and the red line indicate?

I get the basic idea but I don't know what some of the extra stuff is for. Does this type of plot have a name?
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2answers
73 views

Searching for a weekly rhythm in weight loss/gain

Asking for a friend, who has read this. Basically my friend weighs daily and has historical data in CSV format. They would like to take that data and overlay it in some form of weekly chart. E.g ...
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0answers
21 views

t-sne V CNN extracted features

If one were to visualise images (say MNIST) with t-sne we get great separation in the t-sne lower dimensional space. However what would happen if one where to run a CNN on MNIST, then remove the ...
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0answers
55 views

Germination statistics

To start, I have to apologize for my lack of knowledge in statistics. I have stumbled on to the problem that I find hard to solve on my own. I conducted the experiment where I placed bunch of seeds ...
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0answers
66 views

Interpreting Root Mean square Error (RMSE )when dependent variable is log transformed

So I have developed a model to predict the house prices in a county.I log transformed the target variable (home price).I split the data into training and testing sets.I trained the model on the ...
0
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0answers
8 views

Using the concept of commodity flow, how do I check if a sub-graph is connected for MIP optimization problems?

The figure below shows two graphs, one is connected, one is not. Using network flow concept, I have set Node 1 as a source to send one unit of flow to each other node. For connected graph, there ...
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0answers
18 views

Can I use this distribution to model my data according to these plots?

I used the Anderson-Darling and the KS tests to decide whether my data and the distribution fitted on my data has the same distribution. Both tests rejects the null hypothesis. However when I look at ...
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0answers
83 views

how to visualize feature map of resnet with tensorflow?

I have trained a resnet50 model for classification. Sometime it predicts wrong for some image. So I want to visualization the response map to show what is the feature details it learned. But I did not ...
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0answers
15 views

Using pcolor to visualize clusters (from Hierarchical Clustering in multidimensional space) or suggestions? [closed]

I have output from Hierarchical Clustering on my data which is multidimensional and hence difficult to plot and show cluster centers. My data points are regions within a larger image, and I was ...
1
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1answer
36 views

What does a “symmetrically grouped” lag plot tell about the data?

I am trying to do time series forecasting on different data sets. I created a lag plot on each set and received an unusual, 'symmetric' but grouped pattern: I would say that this implies a lack of ...
3
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3answers
245 views

Understanding the shape of the distribution of a random variable

What plots can I draw to understand the shape of the distribution of a random variable? I do know that histograms can be plotted to do the above. But can a box plot and a violin plot be plotted as ...
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0answers
43 views

Interpretation of P-value vs. Plot when performing Logistic Regression in R

I am new to R and Logistic Regression so I will try to be as clear as possible. I did the following really as a test case as proof of concept of what I've been trying to learn. I have performed ...
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0answers
22 views

how to visualize the graph use matplotlib on polynomial and multiple regression with multiple predictors

Multiple: y=b0+b1X1+b2X2+b3X3....bnXn Polynomial: y=b0+b1X+b2(X)^2+....bn(X)^n Step1: Importing package import pandas as pd import numpy as np import sklearn import matplotlib.pyplot as plt import ...
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2answers
48 views

Cox model regression - interpretation of survival graph

I fitted a Cox model and plotted that kaplan-Meier curve with a library survminer and survival in ...
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1answer
14 views

Display uncertainty on spatialy distributed proportions (visualisation)

This question is related to Distribution of estimator of multiple (spatially related) proportions. We consider here the /visualisation/ issue. Consider a spatial random process $Z(s)$, where $s$ ...
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0answers
35 views

Plot showing the average

Found the following chart in a paper. I would like to know the name of this type of plot.
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2answers
44 views

Representation of variables in F=ma using a scatter plot

I'm currently taking a Physics class in college, we just had our fourth lab which was about forces. We did experiments and collected data about the relationship between the variables in the equation F ...
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1answer
17 views

Calculated Projected “End Date” for Event

In reviewing average event duration (such as a service call), I notice that the most recent event average duration appears to be falling; appears to be a trend in event time reduction. However, only ...
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0answers
29 views

Computing standard errors after estimating mean and variance using MLE

I am trying to make estimates of mean and variance using MLE (Maximum Likelihood Estimate) for 1000 random samples following normal distribution. I started by generating random sample of size n = ...
18
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1answer
339 views

What's the history of box plots, and how did the “box and whiskers” design evolve?

Many sources date the classic "box plot" design to John Tukey and his "schematic plot" of 1970. The design seems to have stayed relatively static since then, with Edward Tufte's cut-down version of ...
2
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1answer
36 views

t-SNE on principal component scores: standardization needed?

I have a huge dataset (1.5 million obs and 70 features). I want to visualize the data in 2D, to look for naturally occurring clusters. Analogous to Van der Maaten's approach 1, I first reduce the ...
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1answer
28 views

How to find accuracy of one graph relative to another

Let's say I have a table with 2 columns (data sets), and convert them into 2 graphs. I have the graph of a stock (=col. 1), and then I simulate using some mathematical model, a prediction of the ...