Grid_style plot

This code plots the car data in gride style plot but the variables are not clearly shown on the axis

( it only shows var1:var19 but i want the actual names on the plot)

%% Load the dataset
cars04 = readtable('cars-fixed04.dat');

%% Extract numerical features
numerical_data = table2array(cars04(:, 9:19));

%% Create a grid-style pairwise plot with increased figure size
figure('Position', [100, 100, 1200, 800]); % Adjust the values as needed
xnames = cars04.Properties.VariableNames(9:19);
ynames = cars04.Var1;
h = gplotmatrix(numerical_data, [], cars04.Var2, 'br', '.', 8, 'on',[],xnames,ynames);

The data couldnt be attached but it is displayed like this

cars04 =

387×19 table

Var1 Var2 Var3 Var4 Var5 Var6 Var7 Var8 Var9 Var10 Var11 Var12 Var13 Var14 Var15 Var16 Var17 Var18 Var19

______________________________________________ ____ ____ ____ ____ ____ ____ ____ __________ __________ _____ _____ _____ _____ _____ _____ _____ _____ _____

{'Acura 3.5 RL' } 0 0 0 0 0 0 0 43755 39014 3.5 6 225 18 24 3880 115 197 72

{'Acura 3.5 RL Navigation' } 0 0 0 0 0 0 0 46100 41100 3.5 6 225 18 24 3893 115 197 72

{'Acura MDX' } 0 1 0 0 0 1 0 36945 33337 3.5 6 265 17 23 4451 106 189 77

{'Acura NSX S' } 1 0 0 0 0 0 1 89765 79978 3.2 6 290 17 24 3153 100 174 71

{'Acura RSX' } 0 0 0 0 0 0 0 23820 21761 2 4 200 24 31 2778 101 172 68

{'Acura TL' } 0 0 0 0 0 0 0 33195 30299 3.2 6 270 20 28 3575 108 186 72

{'Acura TSX' } 0 0 0 0 0 0 0 26990 24647 2.4 4 200 22 29 3230 105 183 69

{'Audi A4 1.8T' } 0 0 0 0 0 0 0 25940 23508 1.8 4 170 22 31 3252 104 179 70

Answer 1

[Walter Roberson]

( it only shows var1:var19 but i want the actual names on the plot)

That is what it is plotting.

387×19 table

Var1 Var2 Var3 Var4 Var5 Var6 Var7 Var8 Var9 Var10 Var11 Var12 Var13 Var14 Var15 Var16 Var17 Var18 Var19

Those "Var" are the variable names.

[root]

Thank you Walter! Then how do we display the car names which are shown on column 1? I was expecting the grid plot to show Var names on x axis and car names in y axis. Am I missing something ?

[Walter Roberson]

You are trying to use the syntax

gplotmatrix(X,Y,group,clr,sym,siz,doleg,[],xnam,ynam)

but that syntax is not valid for the case where Y is [] as it is in your call. Your Y is empty: you are plotting X against itself

In any case, xnam and ynam parameters label according to columns of variables, whereas you want to label according to row values.