Sigmoidal Plots"
In Doscheda: A DownStream Chemo-Proteomics Analysis Pipeline

The following plots are generated from applying a sigmoidal fit to the data. An iterative method is used to fit the model, if the solution doesn't converge for a protein, a linear model is applied instead.

Concentrations Used in the model: r params$concentr

Figure ? Top - Bottom plot

if(params$sigmodin != 'sigmoid'){
     plot.new()
      legend('topleft', c("Linear fit applied, no sigmoidal plots available"),bty = 'n')
    }else{


    pred.names <- sigPredNames()
    final.Names <- finalNames()

    topperc<-30 #difference in % between top and bottom
    data_merged_2 <- dataMerge2()
    diffinter<- data_merged_2[(data_merged_2$predX1 -data_merged_2[,paste("predX",input$chans,sep = "")]) > topperc & data_merged_2$predX1 <= 100, ]




    if(nrow(diffinter)>0){
      Diff_Top_bottom_pred<-shape_for_ggplot_pred(diffinter,log2(params$concentr),pred.names)
      Diff_Top_bottom_perc<-shape_for_ggplot_perc(diffinter,log2(params$concentr),final.Names)
      what<-c("(Top - Bottom) >")

      Diff_Top_bottom<-ggplot()+
        geom_line(data = Diff_Top_bottom_pred, aes(x=x,y=value, colour=factor(Diff_Top_bottom_pred$GeneID)), size = 1) +
        geom_point(data = Diff_Top_bottom_perc, aes(x=x,y=value, colour=Diff_Top_bottom_perc$GeneID)) +
        labs(title=paste(what,topperc,sep=""))


    }else{
      Diff_Top_bottom<-ggplot()+
        labs(title=paste("No significant Top-Bottom >" ,topperc,"%","\n","has been found", sep=""))
    }

    print(Diff_Top_bottom)
    }