I am looking at the effect of 4 different variables (pH, oil, sugar and salt conc. ) on the functional properties of a protein in solution. I am a novice to r and finding some of the help available from the R team difficult to navigate.
I think that you might find section10.3.2, p390ff of John Lawson, Design and Analysis of Experiments with R, CRC press, to be helpful. Best Wishes
I am using the method outlined by the Kakade et al., (1974) to look at trypsin inhibition in peas. I am having trouble working the calculations back to find out how much is in my sample, using the...
31 December 2017 6,875 1 View
I'm working on product dev. in the area of crackers and I have been studying different bake times and I've noticed that with longer bake times (31 mins vs 21 mins) there are moderate increases in...
07 August 2016 3,518 2 View
I did a MeOH extract on a food sample using 1g in 10ml. I evaporate my sample after the extraction then resolubilised in 10ml MeOH for TPC assay. I used gallic acid std. curve measured in mg/L....
06 July 2016 6,258 4 View
Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...
07 August 2024 8,106 4 View
Are there any statistical methods to justify your sampling technique using SPSS or AMOS?
05 August 2024 9,153 4 View
Hi everyone, If you have written or come across any papers where Generalised Linear Mixed Models are used to examine intervention (e.g., in mental health) efficacy, could you please share the...
04 August 2024 4,130 4 View
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
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
N=6 Comparing pre and post test likert scale responses. Participants are mix of practicing & preservice teachers.
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Good morning, I would like to conduct a factor analysis for my work at the municipal level on a panel datae with variables such as income per capita, unmployement rate, percentage employed in a...
25 July 2024 5,104 4 View
I am currently working on a mendelian randomization study, and I have downloaded the datasets needed from the ieu opengwas project (mrcieu.ac.uk) in .vcf format. I do not have access to an R...
19 July 2024 2,342 5 View
Hello everyone, I am currently working on a project where I aim to analyze color preferences in data visualizations across participants from three different countries. The dependent variable in...
19 July 2024 4,178 2 View
What type of experimental design do l use and what statistical tools do l use for the hypothesis. What is the position of control group in the analysis?. Thanks
18 July 2024 3,581 3 View