Can someone answer a question regarding PenalizedLDA?

More Julien Pompon's questions See All

Where to find a specific lipid inhibitors?

Dear all, I need to find a chemical lipid inhibitor for a specific pathway. Where can I find the information about these inhibitors? Thank very much in advance julien

11 December 2017 9,812 2 View

Any suggestion for an RNA extraction robot?

Dear all, I am planning to buy a robot to extract RNA. Any suggestions on which one is the best? Thanks

01 February 2017 2,632 5 View

Mitogen / growth factor for insect cells?

Dear all, We are trying to generate primary cell lines from mosquitoes but strugggle in having them dividing. Anyone know a growth factor of insect cells from Drosophila for instance. Thank you

06 July 2016 4,010 1 View

Is anyone familiar with double Indirect ELISA?

Merry christmas all, I want to do an indirect ELISA and detect 2 proteins at once in the same well. To do this end, I would like to use two secondary antibodies with different fluorophores, like...

11 December 2014 3,967 5 View

What humidifier should you buy to regulate humidity in an insectary?

Hello, I just arrived in a new lab with an insectary that has no built-in humidity regulator. I am looking to purchase a humidifier that can regulate humidity, therefore one that can at the same...

09 October 2014 280 4 View

Is anybody familiar with SILAC Schneider medium?

Hello, Do anyone know where I can find SILAC Schneider medium? If does not exist, is there an easy to make it myself, like adding the isotope only in medium just lacking Lysin and Arginin? Thanks

08 September 2014 3,101 4 View

How to establish cell lines in insects?

I am interested in establishing new cell lines in insects. Do you have any advice with regards to the protocol? Thank you very much.

31 December 2013 2,359 3 View

How to compute a backward stepwise discriminant analysis with R?

R is a great statistic language but sometimes it is hard to navigate through the different algorithms and find your way when you're not a professional statistician like I am. I would like to...

03 April 2013 2,339 13 View

How to deal with multicolinearity?

I have a proteomic dataset with more than a hundred proteins in different conditions. I would like to run a stepwise discriminant analysis to select a subgroup that is discriminating among my...

03 April 2013 2,826 9 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

How can I make stacked bar graph with scatter plot?

I want to make a stacked bar graph with showing each data value as dots. I tried with graph pad prism, version 6, but could not succeed. Does anyone have tried before making such graphs?

01 March 2021 9,383 1 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

VIF very high, but correlation is low and coefficient is significant. Which one whould I choose?

Hello. I have a question whether if my coefficients (statistically significant) would be valid when VIFs are really high. In my model, there are independent variables(IV), moderating variables...

26 February 2021 956 13 View

How can I set up a good fit SEM model in AMOS?

I am trying to make an SEM model in AMOS for my dissertation but having some trouble with getting a good fit. I am looking for relationships between self-efficacy reported on a Likert scale and...

26 February 2021 8,642 4 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View