continuous data

  1. M

    What tests to use for analyzing data that is categorical and continuous

    Hey everyone, for my master thesis, I'm analyzing a bunch of patient data. I have very limited statistical experience hence the question here. The data set includes both categorical variables and continuous variables. the continuous variables don't seem to be normally distributed...
  2. M

    Few Continuous data irregularly dispersed over geographic range

    Hi everyone I have e little dataset of biological data (concentrations) collected over a geographic range of 1000 km grouped in 4 spots (ca. 100 km each). Given the tiny sample (2*25 samples corresponding to two different time periods), I thought about Bayesian methods and a MCMC approach in...
  3. J

    Modelling continuous measurements

    In the attachment from a set of notes, a brief description of how we describe a continuous measurement is described. I have a few basic questions regarding this, any assistance would be appreciated: Questions: I think the motivation for defining \DeltaW_n is to define it as the error per...
  4. P

    Ordinal DV correlation analysis

    I am working on a project to analyze the frequency of use of public transit by an individual. However, One of my output variable "Frequency of use " is an ordinal scale with the 4 different categories: often, sometimes, rarely, never. I have treated this variable on a numerical scale with 1-...
  5. M

    post-hoc interaction following lme with both categorical and continuous factors.

    Hello, I'm relatively new to R and have run into some problems. Hoping someone can help! I'm using lme on a model with several, both within/between, categorical/continuous and fixed/random effects. I have 1 x fixed 2-level categorical between-subjects variable "group" (dose vs. placebo), 1...
  6. E

    Ordinal or continuous scale?

    Hello, I have carried experiments where the participants were asked to rate a parameter on a scale. The scale starts from “not heavy” to “heavy”; the subject could mark an X desired position (see enclosed picture). The data is normalized for each participant after each experiment (i.e. the...
  7. K

    Real Life Problem - Removing Outliers from a large dataset of continuous data

    Hey there, I started a job recently and found myself working with data that has outliers. They need to be thrown out using microsoft access or microsoft excel. Here's the problem: there are truck drivers entering in their mileage every time they get gas at a pump. Almost all the data turns out...
  8. A

    2-way Anova design repeated across an extra factor. Which approach is the best?

    Hello to everybody, I am a student working on a trial experiment to find the best combination of growing media, fertilizer application and container position to grow rooted Sitka spruce cuttings over one season. Attached is the description of the experimental design and a picture of...