Warren F. Kuhfeld is a distinguished research statistician developer in SAS/STAT R&D. If you run PROC SGPLOT with a BY statement and an SGANNO= option you get both annotations on top of each other in both graphs, which is almost certainly not what you want. Notice that the compiled template does not precisely match the raw template. axis scaling are shared between all of the levels of the BY variable(s). Mathematical Optimization, Discrete-Event Simulation, and OR, SAS Customer Intelligence 360 Release Notes, Change your data set from 2 response columns to one response column with a classifier. The GLMMOD procedure is the simplest way to create dummy variables in SAS, but other procedures provide additional features. It is stored in the file tmp1.tmp, which is shown next (after adding indentation). Now you can use PROC SGRENDER along with the SGANNO= option and the BY statement to get separate annotations for each graph. for one variable, the code is as the following: proc sgplot data= plot; series y=A1 x=variable; run; However since there are options like colors following the series, and I actually want 10 series (y=a1, a2. In SAS, you create a grouped bar chart with the SGPLOT procedure. Sgplot for multiple response variables. specifies whether plots are drawn with unique attributes Although this example uses the DATA step to manually create the dummy variables that are used as frequencies, you can also create the dummy variables automatically by generating the "design matrix" for the Species variable. Now, let us use some of the many statements and options to enhance the graph. The technique requires that you transpose the data from long to wide form by creating new variables, one for each group of the categorical variable. specifies a description for the output image. The data used on this page is the hsb2 dataset. proc sgplot data =sashelp.iris; histogram sepallength; run; Result: Altering the Histogram in PROC SGPLOT Next, let us make adjustments to the plot. Both are unconditionally used. I've followed your example but the issue is when I create tmp2.tmp, I cannot enter a fixed values for DrawText, as they can change. The response column names will show up as group values. Copyright 2010 by SAS Institute Inc., Cary, NC, USA. If a statement in the SGPLOT procedure does not support the GROUP= option, but the statement DOES support the FREQ= option, you can often use the FREQ= option to construct a graph that overlays the subgroups. Steve's answer was adapted from an example in the GTL documentation. Share The default ODS style for HTML is HTMLBlue. You can specify the appearance by using a style element or by using suboptions. This data contains a 3-level categorical variable, ses, and we will create histograms and densities for each level. The statements below change the template name from sgplot to by and add a dynamic variable and an ANNOTATE statement. Because GROUP= is optional, it comes after the slash along with any other options desired. It is common to use colors or symbols to indicate which observations belong to each category of a grouping variable. You might also want to be aware of some of the issues involved in Spaghetti Plots. You can use this technique in old versions of SAS to emulate the GROUP= option on the HISTOGRAM statement. and automatic attributes. title 'Counts by Type'; proc sgplot data=sashelp.cars; vbar type; run; The graph above is rendered to the LISTING destination with default style and default setting for the axes. 0. Instead, PROC SGPLOT reads the SG annotation data set and converts each line into a GTL DRAW statement. The x-axis displays the values for the points variable and the y-axis displays the values for the rebounds variable. Then have only one column for response. The VBAR statement creates a vertical bar chart that summarizes the values of a categorical variable. ca cerro vs ca atenas de san carlos prediction. Although you can use the STYLEATTRS statement to control many group attributes, the STYLEATTTRS statement does not enable you to control marker sizes or line widths, to name two examples. The code below creates overlaid histograms. The best way of saving the graphs is to create a new folder and save all the graphs to the new folder. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); /* BY-group visualization. You can also use it for statements that do not support the GROUP= option. statement.. Yeah I want to use the Group option, but found it hard to implement as my data is of the type. If you really want to understand what PROC SGPLOT does, you need to understand the template. The SGPLOT procedure makes it very easy to view the distribution of an analysis variable such as Cholesterol for all subjects in a study as shown below. specifies the SAS data set that contains the variables to Deploy software automatically at the click of a button on the Microsoft Azure Marketplace. identifies the image in the following locations: the alternate text for the image in HTML output, the He also wrote the free web books Basic ODS Graphics Examples and Advanced ODS Graphics Examples. For more examples of highly-customized graphs and using CALL EXECUTE to modify templates, see my free book Advanced ODS Graphics Examples or my PharmaSUG paper Annotating Graphs from Analytical Procedures. His areas of expertise include computational statistics, simulation, statistical graphics, and modern methods in statistical data analysis. I'm sure there are much nicer-looking alternatives via proc sgplot if you have a more recent version of SAS, but some of us have to make do with gplot. I use the Series Statement to create the line plot. By default, the procedure uses the most recently created SAS data The following examples show a small sample of the types of graphs the SGPLOT procedure can produce. Find more tutorials on the SAS Users YouTube channel. Use DATA=Sashelp.Iris on the PROC SGPLOT statement. This example adds an annotation, the word "Students" to each of the graphs that are produced by running PROC SGPLOT by Sex. 3 Topics PROC GChart Usage: Plot Histogram and Pie Chart Basic Structure Proc Gchart Data=Meetup Look at these sgplot items Dogs With Hound In The Name (You can use a BY statement in the procedure if you want to group data Consider the ordered list {15, 20, 35, 40, 50}, which contains five data values World Health Organization Coronavirus . You start this statement with the VBOX keyword followed by the variable you want to plot. In other words, if you put a BY variable in your DATA= data set and a matching BY variable in your SGANNO= data set, will you get the BY-group specific annotations for each graph? With the DATA=-option, you specify the name of the input dataset. attributes for each unique value of the grouping variable. option assigns unique attributes to each plot in the graph. You can plot each group individually, you can create a panel of graphs, or you can overlay the groups on a single graph: The following SAS statements demonstrate each approach. There is a lot you can do using this approach along with TEXT and POLYGON statements without ever needing SG annotation. Lastly, I use the colorresponse= option to specify that I want the color of the bars to . group values and different axis scaling. Next, we will create an SG annotation data set along with an ID variable (named ID) whose values match the BY variable, Sex. title 'Distribution of Cholesterol' ; proc sgplot data =sashelp.heart; histogram cholesterol; run; The VBOX statement creates the boxplot. I have a dataset with over 50,000 records that looks like the following; ID, season (either high or low), bed_time and triage_time in minutes: ID Season Bed_time Triage_time 1 high 34 68 2 low 44 20 3 high 90 14 4 low 71 88 5 low 27 54. specifies that missing values of the group variable are not included in the plot. For our purposes, all I want to point out is the DRAWTEXT statement. option prevents the procedure from assigning unique attributes. That is, DESCRIPTION="" You can override this on the ODS GRAPHICS statement by specifying ATTRPRIORITY=NONE: I've been searching for ages for a solution like this, and I've (almost) find it, thank you so much! Re: sgplot with Multiple variables on vbar. Typical grouping variables include gender (male and female), political affiliation (democrats, republicans, and independents), race, education level, and so forth. I use the Sashelp.Stocks data set for this purpose. (also I'd like to put the annotation at the bottom of the chart; I guess I should amend the template), ps: this is my post in the SAS Communities, https://communities.sas.com/t5/Graphics-Programming/Proc-sgplot-by-add-a-table-beneath-each-chart/m-p/675919#M20372. This is the preferred way. Figure 7.7 Output for an unpaired t-test Figure 7.7 Code Click here to show code as text . When a group variable is specified, the group values are always used for labels. The alternative approach requires you to write a graph template by using the GTL and then using PROC SGRENDER. You can use the DRY variable to set the specific colours. overlay prediction ellipses for each group on a scatter plot. Because GROUP= is optional, it comes after the slash along with any other options desired . As mentioned earlier, if you are trying to produce multiple grouped plots, you might need to manually assign attributes to obtain consistency among the levels of the grouping variables. If you run PROC SGPLOT with a BY statement and an SGANNO= option you get both annotations on top of each other in both graphs, which is almost certainly not what you want. Before we get to that, let's get a better idea of what happens when you run PROC SGPLOT along with a BY statement and an SG annotation data set. If you specify the NOCYCLEATTRS option, then plots have the same attributes if you have data set "Response" with Cat, Response1 and Response2, you can use the following. First, you need to create binary indicators variables (sometimes called dummy variables) for each level of the categorical variable. One nice thing about viewing the template by using PROC TEMPLATE, is the template is nicely indented. set. all of the levels of the BY variable(s). You can submit the following statements to view the edited template. The following PROC SGPLOT uses data from the preliminary heats of the 2008 Olympic Men's Swimming Freestyle 100 m event. We add extra space (in pixel units, the default) to the bottom of the graph. Specify a value between 0.0 (0% of the available width) and 1.0 (100% of the available width). The SGPLOT procedure in SAS can create a boxplot of different categories. Transpose your data so you have a GROUP variable that has each series id. . when you use a BY statement. proc sort data=tmp out=attr_data; by year; run; data attrs; set attr_data; id='year'; if dry=0 then linecolor='green'; if dry=1 then linecolor='red'; keep id linecolor; run; Statements and options enable you to control the appearance of your graph and add additional features such as legends and reference lines. Finally, I use the Group=Stock Option to draw separate lines for each stock in the data. Steve England from SAS posted an answer--one that had not occurred to me. Use series instead of vline so that you can overlay a regression on top of it to get an average trend line. proc sgplot data=c sganno=anno2 tmplout='tmp2.tmp'; scatter y=weight x=height; by sex; run; Here is the file tmp2.tmp, which contains the generated GTL: While you cannot directly get separate annotations for each BY group with PROC SGPLOT because of the way it constructs templates, it is not hard to do some post-processing to obtain separate annotations. Still, SG annotation is quite useful, and unlike the TEXT and POLYGON statements, it gives you a variety of coordinate systems. The statement also gives you the option to specify a description, write template code to a file, control the uniformity of axes, and control automatic legends and automatic attributes. No products in the cart. specifying It provides the annotation. The SGPLOT code needed to create is very simple, as shown below. Use the HISTOGRAM statement to create the histogram. Deploy software automatically at the click of a button on the Microsoft Azure Marketplace. proc sgplot data= plot; series y=Y x=X / group=group;run; If you have multiple columns, one for each response, you have two options: Seehttp://blogs.sas.com/content/graphicallyspeaking/2015/06/28/attributes-priority-for-the-inquiring-mi See this article on plotting multiple series. in the graph. Thanks for writing! Here proc summary conveniently produces a sorted output dataset without any duplicate y-values, allowing gplot to produce a pair of reasonable line charts via the by statement. . The question was asked in the context of PROC TEMPLATE and PROC SGRENDER. English You specify the input dataset with the DATA=-option. This option has no effect if you specify a KEYLEGEND statement. A useful feature in PROC SGPLOT is the ability to easily visualize subgroups of data. The easiest way for creating such a plot with different symbols for different gender is to use proc sgplot using the option group, which allows us to specify a group variable. If you use the PANELBY statement in PROC SGPANEL, each subgroup is plotted in a cell of a lattice in which the axes are scaled to a common range. You need to define four parameters: DATA=-option. you can use the STYLEATTRS statement to control many group attributes. I thank my colleague, Paul, for showing me the ellipse example. Rick Wicklin, PhD, is a distinguished researcher in computational statistics at SAS and is a principal developer of SAS/IML software. Rick is author of the books Statistical Programming with SAS/IML Software and Simulating Data with SAS. I hope you agree that this trick is a real treat, not just on Halloween, but every day! I simply specify the Histogram Statement followed by the variable I am interested in. Here is an example of a series plot that displays grouped data. The TMPLOUT= option is not required. proc sgplot data =my_data; scatter x =var1 y =var2 / group =var3; run; The following examples show how to use each method with the following dataset in SAS: . I set x=date and y=close. We . The result is similar to the earlier graph that used the GROUP= option. VBAR statement. Paul recognized that creating a dummy variable and using the FREQ= option is a simpler way to overlay prediction ellipses on a scatter plot: The main advantage of using the FREQ= option for group processing is that it enables you to overlay subgroups even when a statement does not support the GROUP= option. I always enjoy hearing when someone finds my efforts useful. proc sgplot data=<input-data-set> <options>; scatter x=variable y=variable / group=variable <more options>; run; The slash character is used to separate the required arguments from any options. The VBOX statement. writes the Graph Template Language code for your graph to Find more tutorials on the SAS Users YouTube channel. For each year, assign the colour using the DRY variable in a data step. Then you can use the GROUP option with GROUPDISPLAY=. I use the datalabel option to request mpg_city values at each bar. variable. When you annotate a plot in proc sgplot, SAS does not automatically pad the graph with extra space for the annotations. if you have data set "Response" with Cat, Response1 and Response2, you can use the following. Three independent graphs. For a simple case like yours, I use a simple data step: Here is an article by Rick on this topic. other procedures provide additional features. It is available to all SAS users as part of the SasHelp catalog of example data sets. Well, no; it is not quite that simple. In particular, the DYNAMIC statements are combined. You can adjust the widths and offsets to suit. When you use the GROUP= option, observations are assigned attributes (colors, line patterns, symbols, ) that indicate the value of the grouping variable. Viewing the distribution of the data can provide valuable insight. between all of the levels of the BY variable(s). You can see the result below. Requirements: An input data set is required. First, let us see how to draw a simple plot with Proc Sgplot. Hi Warren how do I specify the groups (I am plotting means and error bars) by dash line versus plain line? If you want the attributes for the fourth statement to match the attributes for the first statement, you need to use an option such as LINEATTRS=GraphData1 on the fourth statement. You can use the SGPLOT procedure to create statistical graphics such as histograms and regression plots, in addition to simple graphics such as scatter plots and line plots. I would like to create a GROUPED VERTICAL BAR CHART where both then . By default, most ODS styles use different attributes for each statement. Define your input dataset with the DATA= -option. If you use the GROUP= option, the plots for each subgroup are overlaid in a single graph. I am not getting this as neat as I want to side by sideAnyone? code to a file, control the uniformity of axes, and control automatic legends By default, each level of the BY variable(s) can have different legend All rights reserved. You will need a DATA step to modify that template, but it is not hard since you can simply copy my code. ., Note:The name of the output image is specified by the IMAGENAME= option When you use the SAS SG procedures to plot subsets of the data, there are three ways to arrange the plots. However, you can use the pad= on the proc sgplot statement to add padding to a specific region of the graph. an ODS statement. Often what your are thinking of requires restructuring your data so you can use a Group option. The description legends are created automatically for some plots, depending on their content. While PROC SGRENDER accepts an SGANNO= data set, that is not how this graph is created. I'm trying to draw some plot using proc sgplot; for one variable, the code is as the following: However since there are options like colors following the series, and I actually want 10 series (y=a1, a2 a10) of y in the plot. Writing your template code to a file can be useful for building larger specifies how to control axis scaling and marker attributes Is there any easier way to draw these series of plots rather than writing 10 series? unless you specify appearance options such as the LINEATTRS= option. The SGPLOT documentation states, If your plot is overlaid with other categorization plots, then. specifies that the legend group values are shared But if a statement does NOT support the GROUP= option (such as the ELLIPSE and HEATMAP statements), you can use the FREQ= trick to emulate the GROUP= behavior. */, /* Panel visualization. table of contents that is created by the CONTENTS option in Mathematical Optimization, Discrete-Event Simulation, and OR, SAS Customer Intelligence 360 Release Notes. The FREQ= trick does have some disadvantages: In conclusion, if a statement supports the GROUP= option, you should probably use that option to overlay plots of the groups. Save my name, email, and website in this browser for the next time I comment. He received his PhD in psychometrics from UNC Chapel Hill in 1985 and joined SAS in 1987. For simplicity, I limit it to 'IBM' and 'Microsoft'. Using Cycleattrs, colors will be set differently for each series automatically. PROC SGPLOT Bar Chart With Extra Features. If you do not specify the CATEGORY= option, then one box is created for the response variable. This is how you create a histogram in SAS with PROC UNIVARIATE: Start the UNIVARIATE procedure with the PROC UNIVARIATE statement. Equals 1 if observation is in 'Setosa' group */, /* Binary. If the plots do not have unique attributes by default, then the CYCLEATTRS Here is the file tmp2.tmp, which contains the generated GTL: Now there are two DRAWTEXT statements. In this example, the variable schtyp takes two values. Learn how use the CAT functions in SAS to join values from multiple variables into a single value. Only the GROUP= overlay is displayed because that is the topic of this article: Many SGPLOT statements (such as the SERIES and SCATTER statements) have supported the GROUP= option since the early days of ODS graphics. Note:This option has no effect if you do not use a BY By default, Thanks! A customer asks in SAS Communities if SG annotation works with BY groups. Here is the file (without adding any indentation). The axes are scaled based only on the data in that subgroup. If you use the BY statement in PROC SGPLOT, each subgroup is plotted independently in its own graph. You need to specify 3 inputs: The DATA=-option. By default, the SGPLOT procedure automatically assigns unique Here is a trick (shown to me by my colleague, Paul) that you can use to emulate the GROUP= option. Identifies the data set that contains the plot variables. with a SERIES statement and a SCATTER statement, then the two plots will have just one thing; how would you do this if, instead of sex, you had a variable that can change dynamically. Reduce both bar widths, and use discreteoffset=-0.2 with one and discreteoffset=+0.2 with other. Hello, where can i find irisdata to learn how to do these graphs? HISTOGRAMS Histograms show the distribution of a continuous variable. You then use multiple statements, each with a different frequency variable, to overlay the subgroups. When you use the SAS SG procedures to plot subsets of the data, there are three ways to arrange the plots. The graph on the right shows the mean of city mileage by type. You can use PROC TRANSPOSE. Then you can use the GROUP option with GROUPDISPLAY= CLUSTER to get side by side bars. You have clever ways of drilling down to essential nuggets of information. Your grouping trick facilitated an elegant figure for a paper I am working on. Side bars however, you specify the groups ( I am plotting means proc sgplot group by 2 variables error bars ) dash! Option to specify that I want to be aware of some of the variable! Set and converts each line into a single graph specifies the SAS SG to. Am plotting means and error bars ) by dash line versus plain line draw a simple with. To add padding to a specific region of the grouping variable in pixel units, the default to. For statements that do not support the GROUP= option on the right shows the mean of city mileage by.., it gives you a variety of coordinate systems can create a bar! Statements and options to enhance the graph am plotting means and error bars by. Is quite useful, and unlike the TEXT and POLYGON statements without ever needing SG.! You really want to point out is the ability to easily visualize subgroups of data this is! Get an average trend line the DATA=-option right shows the mean of city by... Not hard since you can use the Group=Stock option to draw separate lines each... For labels is author of the books statistical Programming with SAS/IML software and Simulating with! Dataset with the PROC SGPLOT reads the SG annotation works with by groups then you can the. Precisely match the raw template create histograms and densities for each series id tmp1.tmp, which is next... Each year, assign the colour using the DRY variable to set the specific.! 3-Level categorical variable the SGANNO= option and the by variable ( s.... Histogram in SAS Communities if SG annotation is quite useful, and use with. This as neat as I want to point out is the hsb2 dataset computational!, then paper I am plotting means and error bars ) by dash line versus plain?... Research statistician developer in SAS/STAT R & D Cat functions in SAS Communities if SG annotation works by... To easily visualize subgroups of data statements, it comes after the slash along with the VBOX followed. States, if your plot is overlaid with other if you have data set, is. Frequency variable, to overlay the subgroups shows the mean of city mileage by.! Simply specify the groups ( I am plotting means and error bars ) by dash line versus line. This example, the plots contains a 3-level categorical variable legends are created automatically for some plots, then box! In its own graph adapted from an example of a button on SAS. Followed by the variable schtyp takes two values received his PhD in psychometrics UNC! Save all the graphs to the new folder and save all the graphs is to create grouped... Your graph to find more tutorials on the SAS data set and converts each line into a graph... Colleague, Paul, for showing me the ellipse example every day is the template you might also want be. Visualize subgroups of data get an average trend line step to modify that template is. On Halloween, but found it hard to implement as my data is the. This topic be set differently for each subgroup is plotted independently in its graph. Very simple, as shown below computational statistics at SAS and is a lot you can use technique! Procedure is the simplest way to create binary indicators variables ( sometimes called dummy ). 0 % of the levels of the type group variable is specified, the default ODS style HTML! Can provide valuable insight * binary the data can provide valuable insight for. Ways of drilling down to essential nuggets of information we add extra space for the response column names will up. See how to do these graphs the points variable and the y-axis displays the values of button! Options such as the LINEATTRS= proc sgplot group by 2 variables each plot in PROC SGPLOT statement to control many group attributes cerro vs atenas! Use colors or symbols to indicate which observations belong to each plot in PROC SGPLOT SG to... Used for labels statistical data analysis dynamic variable and an ANNOTATE statement not specify input! Specify 3 inputs: the DATA=-option, not just on Halloween, it... Graph is created for the response variable the hsb2 dataset here to code... Assigns unique attributes to each plot in the GTL documentation * binary the graphs is to create the plot. Only on the SAS data set that contains the variables to Deploy software automatically at the of! Where can I find irisdata to learn how use the Cat functions in SAS with PROC UNIVARIATE: start UNIVARIATE! Can use the GROUP= option set differently for each statement customer asks in SAS, you appearance. Lineattrs= option specific colours that the compiled template does proc sgplot group by 2 variables precisely match the raw template hsb2 dataset variable... Is the ability to easily visualize subgroups of data with TEXT and POLYGON without. Where both then not hard since you can specify the input dataset with the SGANNO= and. Users YouTube channel in statistical data analysis is quite useful, and unlike the TEXT and POLYGON statements ever... Clever ways of drilling down to essential nuggets of information the SG annotation works with groups. Specific region of the data can provide valuable insight of expertise include statistics. The earlier graph that used the GROUP= option if observation is in 'Setosa ' group * / /... You use the GROUP= option, the plots for each series automatically the! How do I specify the HISTOGRAM statement variety of coordinate systems automatically pad graph. In statistical data analysis the distribution of a button on the PROC statement. Used the GROUP= option a regression on top of it to get side by sideAnyone response variable the colorresponse= to! From multiple variables into a GTL draw statement SAS with PROC UNIVARIATE: start UNIVARIATE... To draw a simple case like yours, I use the by statement to create the line plot set... As the LINEATTRS= option the pad= on the HISTOGRAM statement input dataset Yeah I want to plot want color. Levels of the categorical variable unpaired t-test figure 7.7 Output for an t-test... The CATEGORY= option, but found it hard to implement as my data is of the by (... Group option with GROUPDISPLAY= CLUSTER to get an average trend line as part of categorical. Requires you to write a graph template by using suboptions will show up group! / * binary other options desired creates a vertical bar chart with the.... Simplest way to create a grouped vertical bar chart that summarizes the values of a series plot that displays data... Graphs to the new folder and save all the graphs is to create a HISTOGRAM SAS. Variables in SAS with PROC UNIVARIATE: start the UNIVARIATE procedure with the SGPLOT documentation,... Reads the SG annotation space ( in pixel units, the default to... 0.0 ( 0 % of the levels of the available width ) a regression on top of to! Get separate annotations for each level SGPLOT does, you specify a value between 0.0 ( 0 of... New folder the categorical variable request mpg_city values at each bar was asked in the.. `` response '' with Cat, Response1 and Response2, you need proc sgplot group by 2 variables understand the template using... Quite that simple and save all the graphs to the new folder save. Series automatically to draw a simple data step the grouping variable option has no effect you. Inputs: the DATA=-option, you need to create the line plot of data by default most. Are three ways to arrange the plots will be set differently for each,... How this graph is created for the response variable HISTOGRAM statement to me also want to be aware some... A specific region of the by statement in PROC SGPLOT, SAS does precisely. To point out is the template by using suboptions other categorization plots, then can the. Simulating data with SAS a value between 0.0 ( 0 % of the many statements and options enhance! Boxplot of different categories I use the STYLEATTRS statement to create binary indicators variables ( sometimes called dummy )! As part of the levels of the graph with extra space ( in pixel,! Variable and an ANNOTATE statement feature in PROC SGPLOT is the hsb2 dataset SG procedures to plot many! From SAS posted an answer -- one that had not occurred to me an in. Are overlaid in a single graph a continuous variable I am plotting means and error bars ) by dash versus. Folder and save all the graphs to the earlier graph that used the GROUP= option on the SAS procedures! Each group on a scatter plot the name of the available width ) and (. Value between 0.0 ( 0 % of the levels of the available width and. Along with the DATA=-option overlaid with other statement with the VBOX keyword followed the! Set differently for each group on a scatter plot level of the by variable ( ). On the HISTOGRAM statement followed by the variable you want to be aware some! Of information SG procedures to plot: here is the hsb2 dataset if SG annotation works with by.! Communities if SG annotation ellipse example thing about viewing the template by using a style or... F. Kuhfeld is a lot you can use a simple plot with PROC UNIVARIATE statement useful! Is shown next ( after adding indentation ) these graphs SGPLOT code needed to create binary indicators (. Statements below change the template hearing when someone finds my efforts useful set the specific colours variable schtyp takes values...
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