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**Content Feed**

"Axis" function error

-3 < 0 despite abs(3) being greater -- as the error message says, the axis limits have to be in strictly ascending order numeric...

ongeveer 11 uur ago | 0

How to extract row data by searching in matrix.

x=45; y=105; % lookup values; use variables, don't bury magic numbers in executable code ixy=(Species(:,3)==x)&(Species(...

ongeveer 11 uur ago | 1

I would like to plot few values of a vector based on threshold setting from another vector.

It works; you just can't see the single point that is left because the single point on a default line width without a marker jus...

ongeveer 14 uur ago | 1

How to filter table rows according different conditions?

NHATS_table = readtable(file_name,"VariableNamingRule","preserve"); NHATS_table.Object=categorical(NHATS_table.Object); % c...

ongeveer 17 uur ago | 1

How do I create x-axis in boxplot?

You've got the orientation of the array backwards to use boxplot effectively; it thinks columns are variables and rows observati...

1 dag ago | 1

| accepted

Error using fgets Invalid file identifier. Use fopen to generate a valid file identifier. Error in fgetl (line 34) [tline,lt] = fgets(fid);

Indeed, just downloaded and unzipped into a clean subdirectory -- it isn't the failure to open ID.dat that you're seeing, it is ...

1 dag ago | 0

extracting nonpivot columns from a matrix

function npc = nonpivotcols(A) [~,p]=rref(A); A(:,pcols)=[]; npc=A; end or function npc = nonpivotcols(A) [~,...

3 dagen ago | 0

| accepted

Check if number of changes from negative to positive on data table and perform set of conditional tests

A=[-5.67 0.999 -5.66 0.994 -5.55 1.024 -5.38 1.049 -5.19 1.065 -4.42 1.175 -3.00 ...

3 dagen ago | 0

How to create a log_file.txt that stores my outputs and variables?

Use fid=fopen(fillfile('LogFileBaseLocation','LogFileName.txt','a+'); to open the file for append, read/write access. See fop...

3 dagen ago | 0

I cant seem to figure out how to plot my final answer theta-x axis and A,B,C in the y direction. all in 3 separate plots.

E1=40*10^3; E2=8*10^3; v12=0.25; G12=4*10^3; IsotropicComplianceStiffness(E1,E2,v12,G12); function [S,Q]= IsotropicCompli...

3 dagen ago | 0

| accepted

How do I make a probability plot of ranges of values below a certain threshold?

The Q? asked is ... t_delta = max(durations); % strange variable name??? n=histc(durations,1:t_delta); % counts by bi...

4 dagen ago | 0

X axis tick labels

The x-axis is not numeric but a @doc:datetime Hmm...I thought they had made that a visible property (bells ringing, @Adam Danz ...

4 dagen ago | 0

| accepted

Error using horzcat Dimensions of arrays being concatenated are not consistent.

In the code section where you combine OBP_i and OBP OBP_i=0; OBP_b = cumsum([OBP_i OBP']); when you only consider a single co...

5 dagen ago | 0

| accepted

readstruct/writestruct changes boolean value true to "true"

Should be able to test this out on local machine... >> s.M1.Normal.enabled=true; % trial struct with logical variable >> s....

6 dagen ago | 1

| accepted

Weighted mean by groups

It's the wmean function definition that's doing it -- what you intended was wmean = @(w,v)mean(w.*v); trying that, id = { 'a'...

6 dagen ago | 0

| accepted

Error about preallocating for speed

a = []; y = 1; for T = 25:5:1000 D = 0.0062*exp(-80000/(8.31*T)); x(y) = 1/T; %error here a(y) = D; %error here...

6 dagen ago | 0

How can I add individual datapoints and connecting lines to grouped boxchart?

fn=websave('Data_example.xlsx','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1136410/Data_example.xlsx'); tD=...

6 dagen ago | 0

When converting a .txt file to a matrix/cell, MATLAB merges some of the columns together.

C = readcell ('filename.txt'); writematrix ('filename.txt'); C ([1:40], :) =[]; % Delete rows 1-40 from the produced matrix (t...

6 dagen ago | 0

Scatter plot with mean for multiple groups

fn=websave('MATLAB_exampledata.xlsx','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1136975/MATLAB_exampledata....

7 dagen ago | 0

| accepted

How to draw negative values on bar when it contains negative values

That's a little more tricky and the examples don't illustrate -- but it's not terribly difficult to fix; the problem is 'Vertica...

7 dagen ago | 0

| accepted

Stacked plot graphics, trying to color multiple lines on one y-axis.

OK, had just a few more minutes -- the real answer is that there's a 'LineProperties' handle under the stacked plot object handl...

8 dagen ago | 0

Drawing different coloured bar plots according to different conditions

Well, let's see if I parsed this correctly... data =[ 1 1 2 1 2 35 40 23 36 0 0 1...

8 dagen ago | 1

| accepted

how to avoid getting 0 overlap on the pie chart?

I've never tried a legend with a pie chart; I suppose it also probably works somehow... Well, the patch handle is two objects p...

8 dagen ago | 0

How to use dir function with customized number of folders

Go ahead and read all the files into the dir() stuct and then do the culling there... It's easy enough to parse those filename ...

8 dagen ago | 1

Duplicate elements in each row

Sure, if am reading the desired output correctly -- NB it appears your c variable is indexed incorrectly; it should be a logical...

9 dagen ago | 0

Why my results of regress function and fitlm function are different?

I don't see that...I'm guessing a different y vector, somehow, maybe??? x=[1 2 3 4 5 6 7 8 9 10].'; y=[4 5 2 7 2 8 10 2 1 5].'...

9 dagen ago | 0

Looping through object array, possible to get an iterator to index into the object array?

"The MATLAB way" would be to write isConditon=(EvaluateLogicalExpressionOverTheRange); myObjectArray(isCondition)=[]; or the ...

9 dagen ago | 0

| accepted

Color Scatter plot based on values in another column

You can't use such a grouping as is, create a grouping variable... edges=[0.5 1.5:0.5:3.5 inf]; g=discretize(Z); hSC=scatter(...

9 dagen ago | 0

How Timelines Unify in subplot

fn1=websave('compound_tide_1516_data_wl_3.mat','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1134780/compound_...

9 dagen ago | 0

Plot boxplot/boxchart outliers in different colors by goups

fn=websave('sub_table.mat','https://www.mathworks.com/matlabcentral/answers/uploaded_files/1134300/sub_table.mat'); load(fn) i...

10 dagen ago | 1