Answered

Need help finding the cartesian coordinates of a projectile in flight.

Here is what i invented clc,clear x1 = 671.4971; y1 = 717.2387; z1 = 0; az1 = 75.1148*pi/180; el1 = 9.3679*pi/180; [u1,...

Need help finding the cartesian coordinates of a projectile in flight.

Here is what i invented clc,clear x1 = 671.4971; y1 = 717.2387; z1 = 0; az1 = 75.1148*pi/180; el1 = 9.3679*pi/180; [u1,...

2 hours ago | 0

Answered

Cubic smooth spline plot in 3d for several layers

Maybe you don't need interpolation. I just removed NaN numbers D = importdata('Data.txt'); A = D.data; x = A(:,1); cla ho...

Cubic smooth spline plot in 3d for several layers

Maybe you don't need interpolation. I just removed NaN numbers D = importdata('Data.txt'); A = D.data; x = A(:,1); cla ho...

3 hours ago | 0

Answered

Interpolate Points of a 3D Point Cloud?

Use griddata to create surface Use contour3 to create crossection clc,clear load data.txt x = data(:,1); y = data(:,2); z ...

Interpolate Points of a 3D Point Cloud?

Use griddata to create surface Use contour3 to create crossection clc,clear load data.txt x = data(:,1); y = data(:,2); z ...

4 hours ago | 0

Answered

Why is my scatter plot producing inconsistent results?

I made some changes to your code. Look points = [pd17 ev17 mat17 cai17 mar17 jen17 bla17 sch17 jam17 nad17 pd18 ev18 c...

Why is my scatter plot producing inconsistent results?

I made some changes to your code. Look points = [pd17 ev17 mat17 cai17 mar17 jen17 bla17 sch17 jam17 nad17 pd18 ev18 c...

5 hours ago | 0

| accepted

Answered

How to show only elliptic region in color?

try this [X,Y] = meshgrid( -10:0.2:10 ); Z = X.^2 + Y.^2; ind = X.^2/5^2 + Y.^2/3^2 < 1; Z(~ind) = nan; pcolor(X,Y,Z)

How to show only elliptic region in color?

try this [X,Y] = meshgrid( -10:0.2:10 ); Z = X.^2 + Y.^2; ind = X.^2/5^2 + Y.^2/3^2 < 1; Z(~ind) = nan; pcolor(X,Y,Z)

8 hours ago | 0

Answered

How to shade area under 2D- curve into a certain x values

Maybe something is wrong with importing? Try importdata Data = importdata('cl024_12._lab.txt'); L = Data.data(:,5); Depth = D...

How to shade area under 2D- curve into a certain x values

Maybe something is wrong with importing? Try importdata Data = importdata('cl024_12._lab.txt'); L = Data.data(:,5); Depth = D...

10 hours ago | 0

| accepted

Answered

How to plot the 3D spherical histogram?

You can create it manually clc,clear v = rand(10,3)*2-1; v0 = v(:,1)*0; quiver3(v0,v0,v0,v(:,1),v(:,2),v(:,3),1) axis equ...

How to plot the 3D spherical histogram?

You can create it manually clc,clear v = rand(10,3)*2-1; v0 = v(:,1)*0; quiver3(v0,v0,v0,v(:,1),v(:,2),v(:,3),1) axis equ...

11 hours ago | 0

Answered

Rotate 3D surface matrices

You can manually change data. Just use rotation matrix a = 15; % angle rotation R = [cosd(a) sind(a);-sind(a) cosd(a)]; V...

Rotate 3D surface matrices

You can manually change data. Just use rotation matrix a = 15; % angle rotation R = [cosd(a) sind(a);-sind(a) cosd(a)]; V...

12 hours ago | 0

| accepted

Answered

saving points in a sequence to form a contour

I made some research and succeeded. See attached script

saving points in a sequence to form a contour

I made some research and succeeded. See attached script

14 hours ago | 0

| accepted

Answered

ploting data excel to matlab

I corrected your script. Try now [filename,path] = uigetfile('.xlsx') dataExcel = xlsread(fullfile(path,filename)) penghasi...

ploting data excel to matlab

I corrected your script. Try now [filename,path] = uigetfile('.xlsx') dataExcel = xlsread(fullfile(path,filename)) penghasi...

1 day ago | 0

Answered

How do I plot animation of temperature data for a 3D object with time?

Just use pause and for loop maxt = max(t); mint = min(t); N = 100; cmap = jet(N); % generate N colors for tem...

How do I plot animation of temperature data for a 3D object with time?

Just use pause and for loop maxt = max(t); mint = min(t); N = 100; cmap = jet(N); % generate N colors for tem...

1 day ago | 0

Answered

CAN SOMEONE HELP ME WITH THE PLOT?

My solution x = 1 : 12; y = x; ind = [1 2 4 6 7 8 11]; plot(x,y,'.r') hold on for i = 1:length(ind)-1 x1 = x(ind(i));...

CAN SOMEONE HELP ME WITH THE PLOT?

My solution x = 1 : 12; y = x; ind = [1 2 4 6 7 8 11]; plot(x,y,'.r') hold on for i = 1:length(ind)-1 x1 = x(ind(i));...

1 day ago | 0

Answered

Filling areas between curves

Example clc,clear x1 = linspace(0,1.5); y1 = sin(x1); x2 = linspace(0,2); y2 = cos(x1); cla [xc,yc] = polyxpoly(x1,y1,x...

Filling areas between curves

Example clc,clear x1 = linspace(0,1.5); y1 = sin(x1); x2 = linspace(0,2); y2 = cos(x1); cla [xc,yc] = polyxpoly(x1,y1,x...

2 days ago | 0

Answered

For loop over different dimensions

What about filling with NaN? y = portfolios(:,i); % Between 60 and 180 observation if length(portfolios(:,i)) < 180 y...

For loop over different dimensions

What about filling with NaN? y = portfolios(:,i); % Between 60 and 180 observation if length(portfolios(:,i)) < 180 y...

2 days ago | 0

Answered

Draw this type of figure from given data.the data contains lat long disp(north,east,down) and other quantities but i need figure only for the displacement simillar to the attached figure

Here is what i tried. I didn't use disp_down, only east and north A = xlsread('coseis.xlsx'); x = A(:,1); y = A(:,2); u = ...

Draw this type of figure from given data.the data contains lat long disp(north,east,down) and other quantities but i need figure only for the displacement simillar to the attached figure

Here is what i tried. I didn't use disp_down, only east and north A = xlsread('coseis.xlsx'); x = A(:,1); y = A(:,2); u = ...

2 days ago | 0

Answered

For Loop nested within a while loop, run until condition is met

This lines actually means: "loop if condition is met" while headold-head<cc % solving for head until convergence criteria is me...

For Loop nested within a while loop, run until condition is met

This lines actually means: "loop if condition is met" while headold-head<cc % solving for head until convergence criteria is me...

2 days ago | 0

| accepted

Answered

how can i make matlab select a value for a vector variable from a set of data

Use xlsread MCRdata = xlsread('data.xls'); % read data from excel file MCR0 = MCRdata(5); % assign 5th v...

how can i make matlab select a value for a vector variable from a set of data

Use xlsread MCRdata = xlsread('data.xls'); % read data from excel file MCR0 = MCRdata(5); % assign 5th v...

2 days ago | 0

| accepted

Answered

Changing Name Location of Points

You can set backgroundcolor to your labels x = linspace(0,10); y = sin(x); plot(x,y) text(0.8,0.8,'he','backgroundcolor','r'...

Changing Name Location of Points

You can set backgroundcolor to your labels x = linspace(0,10); y = sin(x); plot(x,y) text(0.8,0.8,'he','backgroundcolor','r'...

2 days ago | 0

| accepted

Answered

Removing the origin from the 3D meshgrid?

Make selected values even (2 4 6 .. 98 100)

Removing the origin from the 3D meshgrid?

Make selected values even (2 4 6 .. 98 100)

2 days ago | 0

| accepted

Answered

how can i find the distance from the peak of one wave to another wave in a image?

I suggest next algorithm imcrop region of interest (since it's always at the same position imbinarize image maybe clear a bit...

how can i find the distance from the peak of one wave to another wave in a image?

I suggest next algorithm imcrop region of interest (since it's always at the same position imbinarize image maybe clear a bit...

2 days ago | 0

Answered

How can I centre points of interest in an image before it's cropped and saved?

You previous code was ok i think. Just made some changes [ii,jj] = find(I5); % calculate boundaries i1 = min(ii); %...

How can I centre points of interest in an image before it's cropped and saved?

You previous code was ok i think. Just made some changes [ii,jj] = find(I5); % calculate boundaries i1 = min(ii); %...

2 days ago | 0

| accepted

Answered

solving a system of equations where some variables are linked to a function

I tried fsolve %%variables that are known. m_3=0.004 ; h_3=1530; y_3=0.62; To=25+273; P_c=1.5 ; UA=0.5; hfg2=2256; ...

solving a system of equations where some variables are linked to a function

I tried fsolve %%variables that are known. m_3=0.004 ; h_3=1530; y_3=0.62; To=25+273; P_c=1.5 ; UA=0.5; hfg2=2256; ...

3 days ago | 0

| accepted

Answered

2D Temperature Distribution

I made some changes in your code X = 10; Y = 10; theta1 = zeros(X,Y); for n =1:100 theta1 = theta1 + (2/pi)*(((-1)^(n+1...

2D Temperature Distribution

I made some changes in your code X = 10; Y = 10; theta1 = zeros(X,Y); for n =1:100 theta1 = theta1 + (2/pi)*(((-1)^(n+1...

3 days ago | 0

| accepted

Answered

Max of vector in higher dimensional array subject to constraints

Use max() B = max(A,[],3);

Max of vector in higher dimensional array subject to constraints

Use max() B = max(A,[],3);

3 days ago | 0

Answered

Plot straight lines between the data points in the same colour as the data points with lots of NaN values

Remove NaN? ind = ~isnan(y); plot(x(ind),y(ind),'or') Remember about accepting the answer if it helps

Plot straight lines between the data points in the same colour as the data points with lots of NaN values

Remove NaN? ind = ~isnan(y); plot(x(ind),y(ind),'or') Remember about accepting the answer if it helps

3 days ago | 0

| accepted

Answered

Transform RGB image to grayscale but keep format as RBG

You can use repmat or cat to create 3D matrix I1 = rgb2gray(I); I2 = cat(3,I1,I1,I1); % gray image as 3D matrix %I2 = r...

Transform RGB image to grayscale but keep format as RBG

You can use repmat or cat to create 3D matrix I1 = rgb2gray(I); I2 = cat(3,I1,I1,I1); % gray image as 3D matrix %I2 = r...

3 days ago | 0

Answered

Excel data set to vectors

Use quiver function u1 = diff(x1); v1 = diff(y1); plot(x,y,'.r') hold on quiver(x1(1:end-1),y1(1:end-1),u1,v1) hold off

Excel data set to vectors

Use quiver function u1 = diff(x1); v1 = diff(y1); plot(x,y,'.r') hold on quiver(x1(1:end-1),y1(1:end-1),u1,v1) hold off

3 days ago | 0

| accepted