I want to generate histograms with Y axis in a "fraction" or "%" instead of "counts". This is necessary to compare different experimental conditions in a histogram.
I tried to do statistics on columns before generating histogram, but could not find relative freq or fraction options etc.
You might need to first calculate relative frequency under "Statistics-Descriptive Statistics-Frequency Counts". And then plot histogram from there. If needed, display "%" in y axis by adding % to Tick Labels:Suffix.