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Binbin Qi


China University of Petroleum

Last seen: 22 Tage vor |  Aktiv seit 2009

Followers: 2   Following: 0

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Professional Interests: Machine Learning/ Math/ Geophysics

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  • MATLAB Central Treasure Hunt Finisher
  • Cody 5th Anniversary Finisher
  • Knowledgeable Level 2
  • Thankful Level 1
  • R2016b Feature Challenge Master
  • Divisible by x Master
  • Personal Best Downloads Level 2
  • First Review
  • Logic
  • Computational Geometry I Master
  • Matrix Patterns II Master
  • Introduction to MATLAB Master

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Beantwortet
Equivalent of c++'s NULL or python' s None in MATLAB
I think you can use class.empty for null in matlab classdef A < handle properties empty = A.empty; end end...

etwa 3 Jahre vor | 0

Beantwortet
Finding the number of rows to the next row containing a 1
A = [0 0 0 1 0 1 1 1 0 0 0 0 0 1]'; C = find(A); D = (1:length(A)) - C; D(D>0) = D(D>0) + inf'; min(abs(D))' ans = ...

etwa 4 Jahre vor | 2

Beantwortet
Create Incidence matrix from Graph theory?
ok >> G=digraph( [ 1 2 2 2 3 4] , [4 1 3 4 1 3]); >> I = full(incidence(G)) I = -1 1 0 0 1 0 ...

mehr als 4 Jahre vor | 1

| akzeptiert

Beantwortet
Create Incidence matrix from Graph theory?
>> G=digraph( [ 1 2 2 2 3 4] , [4 1 3 4 1 3]); >> full(G.adjacency) ans = 0 0 0 1 1 0 1 ...

mehr als 4 Jahre vor | 0

Beantwortet
Change date format in vector
t1 = datetime("4/1/2019 12:45:00 AM",'InputFormat',"dd/MM/yyyy HH:mm:ss a"); t2 = datetime("15/6/19 18:10",'InputFormat',"dd/M...

mehr als 4 Jahre vor | 0

| akzeptiert

Beantwortet
For loop and if else statements with multiple conditions
clear;clc;close all [m, n] = deal(4, 8); matrix_data = rand(m, n); num = ['1st','2nd','3rd', sprintfc('%dth', 4:8)]; for i =...

mehr als 4 Jahre vor | 1

| akzeptiert

Beantwortet
How to get specific values from matrix in column 1, based on values in other columns?
clear;clc;close all load sub-01_T2_planktimes R = accumarray(sub01T2(:,2:3)+1,sub01T2(:,1),[], @(x){x}); R{2,2} ans = ...

mehr als 4 Jahre vor | 0

Beantwortet
Histogram Only Plotting 1 Point
I think you can use bar, not histogram bar(error)

mehr als 4 Jahre vor | 0

Beantwortet
Dialog UI and sprintf creating unnecessary new lines
The following is my code. It is can work normally. Can you give your code here? function mydialog(line1,line2,line3) if narg...

mehr als 4 Jahre vor | 0

Beantwortet
How to genneral a repeat array
You can use repelem function to accomplish your question a = 1 2 3 4 >> repelem(a, 3) ...

etwa 8 Jahre vor | 0

| akzeptiert

Beantwortet
How do I convert my .mlapp file into a .exe file?
you can get the main file and use deploytool command

etwa 8 Jahre vor | 0

Beantwortet
change font size of subplot text
I use the following code, it can work clear;clc;close all subplot(335); fplot(@sin,[-1,1]); tx = text(.5,.5,'y = s...

mehr als 8 Jahre vor | 0

Beantwortet
Area between two curves
if you can get the points of every curve, you can use *polyarea* function to get the area, and then diff

mehr als 9 Jahre vor | 0

Beantwortet
why slow 5 times when tic or toc and expression in one line?
Thank you, I guess the reason is JIT.Now, I confirmed

mehr als 9 Jahre vor | 0

Frage


why slow 5 times when tic or toc and expression in one line?
when tic or toc and the main expression are in one line, it will be slow *5 times* than not in a line *1: tic or toc and the ...

mehr als 9 Jahre vor | 2 Antworten | 0

2

Antworten

Frage


How to get the same rand
recently,I do cody games,and I am in trouble about the problem 207:hackathon impossible the link is: http://www.mathworks.cn/ma...

mehr als 12 Jahre vor | 1 Antwort | 0

1

Antwort