30 Questions 32 Answers 0 Followers
Questions related from Rolando Garcia
#Initialize value seg.name
07 July 2018 5,833 0 View
Im importing a 412 x 31 matrix: dat
04 April 2018 1,507 0 View
Im splitting my text and creating a corpus: > newdata Corpus = Corpus(VectorSource(newdata)) Corpus contains all the characters that...
04 April 2018 584 0 View
I'm trying to feed a corpus into a DocumentTermMatrix (dtm) to analyze, but I noticed that dtm doesn't keep all terms (for example, I have terms with parenthesis and semicolons that I would like...
11 November 2017 4,126 1 View
What R package is available to analyze data from an Illumina cyto SNP 850K dataset?
08 August 2016 9,347 0 View
Im using the tm package and would like to create a matrix with the most frequent terms - say 50 in a DocumentTermMatrix.
05 May 2016 9,870 2 View
What packages are suited to explore driving mutations?
05 May 2016 5,312 0 View
material that can absorb or reflect up to this frequency.
01 January 2016 1,953 3 View
Any other image processing and analysis package that one may use in R.
01 January 2016 3,489 6 View
Once a table is uploaded in R, how would you dynamically capture columns from a user and then remove these columns from the table uploaded?
09 September 2015 1,448 12 View
When I try to scale my matrix (dim 10000, 25) using the following: scale.x
09 September 2015 4,688 2 View
Any suggestions
09 September 2015 9,837 0 View
x
08 August 2015 8,802 0 View
Variables are on the first row and measurements start from the second row.
08 August 2015 1,993 4 View
The training set is 350 and test data-set is 150. 100 or 1000 iterations? Is the training set large enough to go 1000 iterations and avoid over-fitting.
12 December 2014 2,278 6 View
By higher discrimination, we mean higher AUC and specificity. The supervised SVM was trained, tested with a 10 fold cross validation. In my opinion, I would tend to go with the lower results...
11 November 2014 5,329 2 View
I'm searching for the mouse stromal MS5 cell line that has been transduced with the NOTCH ligand delta-like-1 (DL1). Is it commercially available? Any other sources available out there that may...
08 August 2014 5,163 1 View
Any R packages available to run these classification based models.
07 July 2014 4,132 4 View
Using R (nnet and neural net).
06 June 2014 6,353 1 View
What is the best way to deal with quasi-complete separation of data points in a logistic regression?
05 May 2014 7,128 6 View
Due to some drawbacks of the Hosmer-Lemeshow (H-L) goodness-of-fit test, what other alternative method to the H-L would you say does a better job in calibration of prediction models? Perhaps...
04 April 2014 3,026 3 View
I'd like to run an analysis using different sets of GEP datasets / perhaps datasets from GEO using different platforms - all this in R. I once saw a similar post but I'm not able to find it.
04 April 2014 6,712 2 View
Can you still have a good model despite a p-value < .05 for the H-L goodness of fit test? Any alternative testing in SAS or R?
03 March 2014 3,220 2 View
Any other open source tool that may be used for MC tests of the accuracy of cluster analysis?
02 February 2014 6,934 4 View
What is the best way to create a clone information file to use with the read.cloneinfo function in R I know I need a chr and position column (is this all needed). But what about if the clone...
09 September 2013 5,085 5 View
array CGH analysis with R
08 August 2013 510 1 View
Any tools (programming languages) needed to power web applications with R and mySQL? Has anyone seen cold fusion integrated with R?
08 August 2013 4,549 6 View
Is R suitable for such analysis?
07 July 2013 8,604 1 View
Can you direct me to an open source program or good tutorials in R or matlab that can do/infer copy number variations from microarray data?
05 May 2013 6,779 2 View
Open source programs
02 February 2013 1,054 18 View
