Answered
Using only ‘stepfun’ in MATLAB, please perform mathematical operations to produce the following output
stepfun is obsolete now, and there is no documentation available for it. The only reference you will get is using help - help...

2 years ago | 0

Answered
How to convert one column from string to datetime
If you are using R2018b or a later version, you can use convertvars - %Random data for example ABC = table(rand(5,1), {'2014-...

2 years ago | 0

| accepted

Answered
Why does this function not work for decimals?
The formula you have used is incorrect. Refer to this webpage for (the taylor) expansion of arc tan for different values - http...

2 years ago | 0

Answered
Extract a specific range of rows from an excel file using opts = detectImportOptions(filename)
Specify the data range to be read using the 'Range' option - opts = detectImportOptions('tempDataTrollhFlygpl.xlsx', ... ...

2 years ago | 0

| accepted

Answered
Dealing data with text and numerical in .txt file
%display the contents of the file type data.txt %read the file fID = fopen('data.txt') %read the data in the given format - ...

2 years ago | 0

Answered
find関数について
Welcome to the world of floating point numbers, where not all numbers can be represented exactly in binary form. See this threa...

2 years ago | 3

Answered
How can I calculate the grouped data?
Dynamically naming variables is not a good programming practice - TUTORIAL: Why Variables Should Not Be Named Dynamically (eval)...

2 years ago | 0

| accepted

Answered
Finding intersecting points in the Lissajous scan pattern
There are several options available in FEX - https://in.mathworks.com/matlabcentral/fileexchange/11837-fast-and-robust-curve-i...

2 years ago | 2

Answered
Retracting the time-tags from the histcounts
If you are working with R2019a or a later version, use readmatrix and writematrix. Otherwise, use writetable D=readmatrix('time...

2 years ago | 1

Answered
Zeroing matrix elements outside of a certain range.
A simple approach via indexing - data = [1;2;3;4;5].*ones(5,2).*[0.5,0.4] out = [data(1:4,1) data(2:5,2)]

2 years ago | 0

Answered
Algorythm for Average of excel data
data = readtable('S1IA.csv') %define bins to distribute bins in idx = 0:0.5:0.5*ceil(max(data.Time)/0.5); %Get the mean of ...

2 years ago | 0

| accepted

Answered
Converting entries from array to double from an entire column in a matrix for plotting
Change the options for reading the data via detectImportOptions and use column numbers to plot - opts = detectImportOptions('t...

2 years ago | 0

| accepted

Answered
文字列から指定数だけ削除
A = ["aaa 01" "bbb 02" "aaa 02" "bbb 03" "ccc 04"] %Number of characters from end to delete n = 3; B = extractBefore(A,...

2 years ago | 0

| accepted

Answered
Convert Julian Date + Time in GMT to calendar day + Time in EST
Note that I have changed the inputs YEAR and JDDD to numeric values as they are easier to work with - I changed the name to all...

2 years ago | 3

Answered
Extracting a variable from a series of files contained inside a folder
Refer to this documentation page for importing and exporting multiple files - https://in.mathworks.com/help/matlab/import_export...

2 years ago | 0

Answered
How to make subplots bigger and title in one line?
Using tiledlayout here seems to be a better option, as it gives you a better control over the spacing and padding. Also, while ...

2 years ago | 0

| accepted

Answered
Poissons Equation with Point source
You can use inpolygon to see if the origin is inside the triangle or not and polyarea to calculate the area of the triangle - ...

2 years ago | 0

Answered
How to group discontinuous numbers
load('Risk_values.mat'); whos idx = cumsum([1;diff(mediumRiskXValues)~=1]) out = accumarray(idx, mediumRiskXValues, [], @(x...

2 years ago | 1

| accepted

Answered
Why do I get an error "Matrix dimensions must agree."
Why are you using a for loop for a task that is not changing with iterations? "Why do I get an error "Matrix dimensions must ...

2 years ago | 1

Answered
how to do a legend with text, variables, and Greek symbols in it?
You can use the symbols as provided in the list here for the default interpreter (i.e. tex) - https://in.mathworks.com/help/matl...

2 years ago | 0

| accepted

Answered
fopen and fget reading lines from a text
You need to use the file ID as input to fgetl - fid = fopen('test.txt'); %lines to read num = 3; %Preallocate a cell ar...

2 years ago | 1

| accepted

Answered
Using parfor to evaluate integrations
See - Array vs Matrix Operations xmin = -2; xmax = 1; ymin = 1; ymax = 3; dx = 0.001; dy = dx; xs = xmin:dx:xmax; Nx = ...

2 years ago | 2

| accepted

Answered
How do you get up to first n characters in a string?
A simple approach using extractBetween - s_arr = ["a";"ab";"abc";"abcd";"abcde";"abcdef";"xyzxyzxyz"] pos = 4; % pos = no. o...

2 years ago | 3

Answered
How to set both yticks(left and right) in decimal values not exponential or scientific??
Use get on the axes handle to see its structure - You will find that the YAxis is stored as 2x1 Numeric Ruler (1 for each side)....

2 years ago | 0

| accepted

Problem

Beam me up, Scotty!
It's the mid 22nd century. You, Montgomery Scott, are appointed the chief engineer of the Starship Enterprise. The Starship is...

2 years ago | 1 | 9 solvers

Answered
index problem while sort
"ind=[2,1] is coming which is wrong." It is correct. The input to sort() only has 2 elements, so the expectation to get [3 1]...

2 years ago | 1

| accepted

Answered
how to delete multiple cells at once?
First, concatenate the data to get it in a numeric array. See - horzcat As you are dealing with floating point numbers, compare...

2 years ago | 0

Answered
Filtering the common rows between two matrices
Try this - A = [1 2 3; 4 5 6; 7 8 9]; B = [1 2 3 90; 3 1 2 88; 4 5 6 17; 6 5 4 19; 7 8 9 12; 15 18 22 20]; %sort each ro...

2 years ago | 0

Answered
Syntax problem in creating a function which takes a vector as an argument
Use element-wise power - power, .^ and define the expression as an anonymous function - r_1 = 0.84 - 0.29i; r_2 = 0.84 + 0.29i...

2 years ago | 0

| accepted

Answered
How to apply for loop in case of product of function inside double summation?
That is simply the sum of product of pairs in the given index range for a and b, thus P can be defined like this - P = 1-sum((...

2 years ago | 0