Introduction to Data Analysis for Natural Scientists
my personal experience with life science and need for statistics to analyze data
Spearman-Kärber analysis and the Creutzfeld-Jakob disease
A non-parametric analysis to determine the ED50, SD50 or similar metrics The first time I came across the term Spearman-Kärber was with the analysis of RT-QuIC. These assays are typically…
Error bars — frequently used but rarely questioned
I have seen many publications with beautiful colored graphs including well-formatted error bars. Unfortunately, a lot of these publications do not state what these error bars represent. If not stated…
Don’t get fooled again by the R-squared
Do you agree with the following statement? An R² of 0.995 is very good. An R² value of -0.145 is impossible, since a squared value cannot be negative. A fit…
Outliers — Friends or Foes?
If you are an experimental working person, I guess you have already faced situations with outliers, i.e. any data points appearing out of range compared to the others. Probably you…
Data Analysis — why should you care about it?
First of all, what does data analysis actually mean? As often, there is no black and white definition of this term but from my point-of-view John W. Tukey, a famous…