Question: TIGRESS error on dataTest

0

pengchy •

**410**wrote:Hi, I have downloaded the TIGRESS package from http://projets.cbio.mines-paristech.fr/~ahaury/svn/dream5/html/index.html, and test the test data with the following matlab code, and got the error message listed as following codes:

```
cd /path/to/TIGRESS/
load('data/dataTest.mat')
>>test.net = tigress(dataTest)
Found 20 genes, 10 experiments, 4 transcription factors
L = 5
alpha = 0.200000
R = 1000
Algorithm : lars
Now working on target 1 out of 20
??? Improper assignment with rectangular empty matrix.
Error in ==> lars at 94
[gamma(i) min_i min_j] = minplus(gammaTest);
Error in ==> stability_selection at 53
path=lars(xs(i1,:), y(i1), 'lar',L);
Error in ==> tigress at 115
tmp=stability_selection(x,y,ntf,find(predTF),R,L,alpha,LarsAlgo);
```

But when the L is set to 3, the test will successful:

```
>> freq=tigress(dataTest,'R',R,'alpha',alpha,'L',L)
Found 20 genes, 10 experiments, 4 transcription factors
L = 3
alpha = 0.300000
R = 500
Algorithm : lars
Now working on target 1 out of 20
Elapsed time is 0.558753 seconds.
Now working on target 2 out of 20
```

When I test on my own data, another error occurred:

```
>> freq = tigress(lmi_data,'R',R,'alpha',alpha,'L',2)
Found 17119 genes, 129 experiments, 957 transcription factors
L = 2
alpha = 0.300000
R = 500
Algorithm : lars
Now working on target 1 out of 17119
??? Index exceeds matrix dimensions.
Error in ==> stability_selection at 55
freq(:,predictorTF)=freq(:,predictorTF) + abs(sign(path(2:L+1,:)));
Error in ==> tigress at 115
tmp=stability_selection(x,y,ntf,find(predTF),R,L,alpha,LarsAlgo);
```

Could anyone help me out? Thank you!

I have solved the problem on my own data by:

410