306 lines
12 KiB
R
306 lines
12 KiB
R
#!/usr/bin/env Rscript
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#########################################################
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# TASK: function for wide plot
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#with consurf score and error bars
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#position numbers coloured by
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# - ligand distance
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# - active site residues
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#########################################################
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#==========================================================
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# wideP():
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# input args
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#==========================================================
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wideP_consurf3 <- function(plot_df
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, xvar_colname = "position"
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, yvar_colname = "consurf_score"
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, yvar_colourN_colname = "consurf_colour_rev" # num from 0-1
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, plot_error_bars = T
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, upper_EB_colname = "consurf_ci_upper"
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, lower_EB_colname = "consurf_ci_lower"
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, plot_type = "point" # default is point
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, point_colours
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, p_size = 2
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, leg_title1 = ""
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, leg_labels = c("0": "Insufficient Data"
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, "1": "Variable"
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, "2", "3", "4", "5", "6", "7", "8"
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, "9": "Conserved")
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, panel_col = "white"
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, panel_col_fill = "white"
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# axes title and label sizes
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, x_axls = 12 # x-axis label size
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, y_axls = 15 # y-axis label size
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, x_axts = 12 # x-axis text size
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, y_axts = 12 # y-axis text size
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, default_xtc = "black" # x-axis text colour
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, ptitle = ""
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, xlab = ""
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, ylab = ""
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, pts = 20
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# plot margins
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, t_margin = 0
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, r_margin = 0
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, b_margin = 0
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, l_margin = 0
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, unit_margin = "cm"
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# Custom 1: x-axis: text colour
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, xtext_colour_aa = F
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, xtext_colour_aa1 = active_aa_pos
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, xtext_colour_aa2 = aa_pos_drug
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, xtext_colours = c("purple", "brown", "black")
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# Custom 2: x-axis: geom tiles ~ lig distance
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, annotate_ligand_distance = T
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, leg_title2 = "Ligand Distance"
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, lig_dist_colname = LigDist_colname # from globals
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, lig_dist_colours = c("tan", "black")
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, tpos0 = 0 # 0 is a magic number that does my sensible default
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, tW0 = 1
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, tH0 = 0.3
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# Custom 3: x-axis: geom tiles ~ active sites and ligand
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, annotate_active_sites = T
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, default_gt_clr = "white"
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, build_plot_df=FALSE
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, debug=FALSE
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, ...
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){
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anno_bar = position_annotation(
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plot_df,
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bg = panel_col,
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...
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)
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if(missing(point_colours)){
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temp_cols = colorRampPalette(c("seagreen", "sienna3"))(30)
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point_colours = temp_cols
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}else{
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point_colours = point_colours
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}
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###############################
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# custom 1: x-axis text colour
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##############################
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if (xtext_colour_aa){
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positionF <- levels(as.factor(plot_df[[xvar_colname]]))
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length(positionF)
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aa_pos_colours = ifelse(positionF%in%xtext_colour_aa1, xtext_colours[1]
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, ifelse(positionF%in%xtext_colour_aa2
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, xtext_colours[2]
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, xtext_colours[3]))
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}else{
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aa_pos_colours = default_xtc
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}
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################################################
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# Custom 2: x-axis geom tiles ~ lig distance
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################################################
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#=========================
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# Build data with colours
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# ~ ligand distance
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#=========================
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if (annotate_ligand_distance){
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cat("\nAnnotating x-axis ~", lig_dist_colname, "requested...")
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#-------------------------------------
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# round column values: to colour by
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#--------------------------------------
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#plot_df = plot_df[order(plot_df[[lig_dist_colname]]),]
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plot_df['lig_distR'] = round(plot_df[[lig_dist_colname]], digits = 0)
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head(plot_df['lig_distR'])
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#-------------------------------------
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# ligand distance range, min, max, etc
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#--------------------------------------
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lig_min = min(round(plot_df[[lig_dist_colname]]), na.rm = T); lig_min
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lig_max = max(round(plot_df[[lig_dist_colname]]), na.rm = T); lig_max
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lig_mean = round(mean(round(plot_df[[lig_dist_colname]]), na.rm = T)); lig_mean
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#-------------------------------------
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# Create mapping colour key
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#--------------------------------------
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# sorting removes NA, so that n_colours == length(ligD_valsR)
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n_colours = length(sort(unique(round(plot_df[[lig_dist_colname]], digits = 0)))); n_colours
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lig_cols = colorRampPalette(lig_dist_colours)(n_colours); lig_cols
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ligD_valsR = sort(unique(round(plot_df[[lig_dist_colname]], digits = 0))); ligD_valsR
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length(ligD_valsR)
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if (n_colours == length(ligD_valsR)) {
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cat("\nStarting: mapping b/w"
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, lig_dist_colname
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, "and colours")
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}else{
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cat("\nCannot start mapping b/w", lig_dist_colname, "and colours..."
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, "\nLength mismatch:"
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, "No. of colours: ", n_colours
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, "\nValues to map:", length(ligD_valsR))
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}
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ligDcolKey <- data.frame(ligD_colours = lig_cols
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, lig_distR = ligD_valsR); ligDcolKey
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#names(ligDcolKey)
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cat("\nSuccessful: Mapping b/w", lig_dist_colname, "and colours")
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#-------------------------------------
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# merge colour key with plot_df
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#--------------------------------------
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plot_df = merge(plot_df, ligDcolKey, by = 'lig_distR')
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plot_df_check = as.data.frame(cbind(position = plot_df[[xvar_colname]]
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, ligD = plot_df[[lig_dist_colname]]
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, ligDR = plot_df$lig_distR
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, ligD_cols = plot_df$ligD_colours))
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}
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###################
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# start plot
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###################
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#-------------------
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# x and y axis
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# range, scale, etc
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#-------------------
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my_xlim = length(unique(plot_df[[xvar_colname]])); my_xlim
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ymin = min(plot_df[[yvar_colname]]); ymin
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ymax = max(plot_df[[yvar_colname]]); ymax
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g = ggplot(plot_df, aes_string(x = sprintf("factor(%s)", xvar_colname)
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, y = yvar_colname
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, colour = sprintf("factor(%s)", yvar_colourN_colname)
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))
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#"if SPECIAL do SPECIAL THING, otherwise do NORMAL THING"
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if (plot_type == "bar"){
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cat('\ndoing bar plot')
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g0 = g +
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geom_bar(stat = "identity")
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}
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else{
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g0 = g +
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coord_cartesian(xlim = c(1, my_xlim)
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, ylim = c(ymin, ymax)
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, clip = "off") +
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geom_point(size = p_size, show.legend = FALSE) +
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scale_colour_manual(values = point_colours)
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}
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if (plot_error_bars){
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cat('\nplotting error bars')
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g0 = g0 +
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geom_errorbar(aes(ymin = eval(parse(text = lower_EB_colname))
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, ymax = eval(parse(text = upper_EB_colname))
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), show.legend = FALSE)
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}else{
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g0 = g0
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}
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#---------------------
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# add axis formatting
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#---------------------
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g1 = g0 + theme( axis.text.x = element_text(size = x_axts
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, angle = 90
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, hjust = 1
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, vjust = 0.4
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, face = "bold"
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, colour = aa_pos_colours)
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, axis.text.y = element_text(size = y_axts
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, angle = 0
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, hjust = 1
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, vjust = 0)
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, axis.title.x = element_text(size = x_axls)
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, axis.title.y = element_text(size = y_axls )
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, panel.background = element_rect(fill = panel_col_fill, color = "transparent")
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, plot.background = element_rect(fill = panel_col_fill, color = "transparent")
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, panel.grid = element_blank()
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#, panel.grid.major = element_line(color = "black")
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#, panel.grid.minor = element_line(color = "black")
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, plot.title = element_text(size = pts
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, hjust = 0.5)
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, plot.margin = margin(t = t_margin
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, r = r_margin
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, b = b_margin
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, l = l_margin
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, unit = unit_margin))+
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#guides(colour = guide_legend(title = "ConsurfXXXX")) +
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labs(x = NULL, y = NULL)
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# labs(title = ptitle
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# , x = xlab
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# , y = ylab)
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#------------------
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#Extract legend1
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#------------------
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# yayy
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g1_leg = ggplot(plot_df
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, aes_string(
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x = sprintf("factor(%s)"
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, xvar_colname))
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)
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g1_leg = g1_leg + geom_bar(); g1_leg
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g1_leg = g1_leg + geom_bar(aes_string(fill = sprintf("factor(%s)"
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, yvar_colourN_colname)))
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g1_leg = g1_leg + scale_fill_manual(values = point_colours , name = leg_title1)
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g1_leg
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legend1 = get_legend(g1_leg)
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out = g1
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# x-axis: geom_tiles ~ active sites and others
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if(annotate_active_sites){
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#aligned = align_plots(out,position_annotation(plot_df))
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out=cowplot::plot_grid(
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out,
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NULL,
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anno_bar,
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ncol=1,
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align='v',
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#axis='lr',
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rel_heights = c(10,-0.1,1)
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)
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}
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#### add the legends to the output ####
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# ...which legends depend on whether the heat bar and position tiles are included
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if (annotate_ligand_distance){
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cat('\nOutput: Plot + distance heat-bar + other stuff')
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legs = cowplot::plot_grid(legend1
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, generate_distance_legend(plot_df)
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, ncol = 1
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, align = "hv"
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, rel_heights = c(2/4,3/4))
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out2 = cowplot::plot_grid( out + theme(legend.position = "none")
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, legs
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, ncol = 2
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, align = "hv"
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, rel_widths = c(9/10, 0.4/10)
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)
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}else{
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out2 = cowplot::plot_grid( out + theme(legend.position = "none")
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, legend1
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, ncol = 2
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, align = "hv"
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, rel_widths = c(9/10, 0.5/10)
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)
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}
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return(out2)
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}
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#wideP_consurf3(small_df3, point_colours = consurf_colours)
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