tabPanel("Model detail",helpText('You have to format data with tab separartor and dot for decimal. Remove all space in the header from your dataset. Replace it by "_"'),
helpText('In your data set there are two arrays, time and cells density (Optic density, Cells number, Biomass ....) ')),
tabPanel("Formating detail",helpText('You have to format data with tab separator and dot for decimal. Remove all spaces in the header from your dataset. Replace it by "_"'),
helpText('In your data set there are two arrays, time and cells density (Optic density, Cells number, Biomass ....) ')),