Community Profile

# Liqun

8 total contributions since 2015

View details...

Contributions in
View by

Question

run multiple linear regression using fitlm without create new table?
I have a large table (500000 rows X 26 columns), there are two category variables, say c1 with value +1, 0 and -1; c2 with value...

3 years ago | 1 answer | 0

### 1

Question

why can matlab NOT solve this simple equation (2015a version) ?
>> syms x; >> solve(2*x-1==0) ans = 1/2 >> solve(5000*(1/x - 1/(x*(1+x)^15)) - 35000 == 0) >> solve(5000*(1/x - 1...

4 years ago | 2 answers | 0

### 2

Question

Looking for fast integration method?
I am trying to do an integration 10000*5 times, it seems like a incomplete gamma function, but it is not, because after i did...

4 years ago | 0 answers | 0

### 0

Question

setting default date and time format in R2015a ?
I have problems to set default date format in matlab R2015a version. After I enter the command to change the default date forma...

5 years ago | 2 answers | 0

### 2

How do I merge a column from one table into the column of another table that has missing entries?
I have a similar problem, suppose I have table A and B as follows: A = table([1;2;3;4;5;6;7;8;9], [2;4;6;8;10;12;14;16;18...

5 years ago | 0

how to speed up my program? parallel?
I tried to change for vlevel = 1 : Vn % loop on V-tree to parfor vlevel = 1 : Vn % loop on V-tree But...

5 years ago | 0

how to speed up my program? parallel?
Under of the help from Roger, the speed is double now. But, still looking for some significant speed up. can this do paralle...

5 years ago | 0

Question

how to speed up my program? parallel?
I have a piece code which would take long time to run, I am wondering how to speed up. Any hints or suggestions are welcome! ...

5 years ago | 4 answers | 0