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Binbin Qi


China University of Petroleum

Last seen: etwa ein Monat vor |  Aktiv seit 2009

Followers: 2   Following: 0

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Professional Interests: Machine Learning/ Math/ Geophysics

Statistik

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

mehr als 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 = ...

mehr als 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) ...

mehr als 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

mehr als 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...

fast 9 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

fast 10 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

fast 10 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 ...

fast 10 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...

fast 13 Jahre vor | 1 Antwort | 0

1

Antwort