How do you make a ROC curve from tabulated data in R?

More Dr. Narendra Kumar Sharma's questions See All

Anyone can help with endnote style for shock?

I tried to search output style for shock journal but didnt find. If any one want to share style or information about same style reference of other journal.

10 November 2015 5,120 1 View

Anyone have idea how to find a miRNA target site?

I wants to find miRNA target site by manual or tool available foe access

08 September 2014 1,803 16 View

Can anyone suggest a reliable tool for the design of qRT-PCR primers when used with sybr green?

Can any body suggest or share idea about primer design for qRT-PCR for gene Perilipin 2 step by step for beginner?

04 May 2014 5,498 10 View

Is it possible to identify different oxidized or reduced state of a protein in mixture by mass spectroscopy?

I want to study a signaling molecule which shows reduced or oxidized nature.

01 February 2014 7,013 4 View

Can anyone want to share method for PCA plotting or suggest a free tool for PCA analysis of proteomic data?

Thanks in advance.

01 February 2014 2,749 4 View

Which methods is best for comparing the Plasma proteome between two groups by LC-MS?

I have plasma samples and want to compare two groups to identify differentially expressed proteins by LC-MS. There are several approaches like label free and iTRAQ. I want to know which method is...

01 February 2014 3,401 11 View

Is it necessary to acetone precipitate plasma proteins before iTRAQ labelling for mass spec?

As Plasma has high amount of salt and lipids, what is the best methodology for sample preparations before labelling?

31 December 2013 8,783 3 View

How can we inhibit a particular signaling pathway?

To silence genes of a particular pathway to study the significance of said pathway.

31 December 2013 9,811 9 View

Is there any free software to make hierarchical clustering of proteins and heat maps with expression patterns?

31 December 2013 1,381 11 View

Is a cut-off filter suitable to exchange buffer from protein samples?

I experienced, that when I used 3 or 5 kd cut-off filter tubes to exchange buffer for proteomics work, the flow through have some protein content. Theoretically it should not have happened. In...

31 December 2013 7,753 3 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

Can anyone provide me with molecular docking softwares/ websites?

Molecular docking software/ websites?

02 August 2024 8,704 7 View

Should I remove an item from a scale to raise Cronbach's alpha and McDonald's omega or is it better to leave it if they are both over .7 already?

Hello! I have this scale which had 10 items initially. I had to remove items 8 and 10 because they correlated negatively with the scale, and then I removed item 9 because Cronbach's alpha and...

01 August 2024 4,606 7 View

Why 3 replicates for most biological assays? Is it enough to examine the data fits normal distribution?

Just bounced on me. Before statistically analysing significant difference, shouldn't we see if data fits normal distribution first? Is 3 replicates enough to testify the hypothesis of normal...

31 July 2024 8,141 13 View

Posthoc test lettering in JAMOVI?

Does anyone know of a module for the JAMOVI software that is capable of generating mean separations using the classic letters based on post hoc results (e.g., Tukey test)? If, as I believe, such...

31 July 2024 3,333 4 View

I am working on my Master's thesis on the biogeography of the genus Ruagea and I would like to ask, could someone help me to check whether my result?

I created a file with my outgroup and ingroup species using Beauti, ran it in BEAST, viewed it in Tracer, and then used TreeAnnotator to create a file that I imported into RASP. Could someone...

28 July 2024 2,979 1 View

Standard curve of H2O2?

Hi, I need to prepare a standard curve of H2O2 to evaluate the primary products of oxidation. H2O2 I have is 35%. How do I prepare a stock of H2O2 10 microlitere. If s.o has experience, I would be...

26 July 2024 3,460 2 View

Can we eliminate the stress singularity at the tip of the crack by manipulating the elastic constants?

The aim of the research here is to prevent the propagation of the crack in the fabricated elastic medium with useful applications.

25 July 2024 9,976 3 View

Which software tools are best for enhancing diagnostic accuracy in chest X-ray imaging using image reconstruction and neural networks?

I am reaching out to seek your valuable advice and recommendations regarding the best software tools to use for this research. Specifically, I am looking for software with a user-friendly...

22 July 2024 3,794 1 View

How to test multivariate outlier in STATA?

Hey all, I need help testing for multivariate outliers using STATA for my master thesis. The literature recommends the Minimum Covariance Determinant (MCD) (Verardi & Dehon, 2010). I found the...

22 July 2024 8,821 2 View

Alexander Benedikt Leichtle

Another extremely helpful and well-documented package is pROC:

http://web.expasy.org/pROC/

The website also contains screenshots with code.

M Moyen Uddin PK

http://www.r-bloggers.com/a-small-introduction-to-the-rocr-package/

It will be very helpful.

I thank you very much to Vladimir Chupakhin.

Best

Jully Ouma

This is also a good resource.

Article pROC: An open-source package for R and S+ to analyze and com...

Cheers,