DiagrammeR does not accept specific syntax symbols

Question

I want to build a basic flowchart with the DiagrammeR package like below. The code chunk below works normally. But when I add "." or "=" then I get

Error: syntax error in line 9 near '->'

working code

library(DiagrammeR)

# A minimal plot
DiagrammeR::grViz("digraph {

                  graph[layout = dot, rankdir = LR]

                  BARI_POP4_5_PRIMARY_CN
                  12
                  ACR50

                  BARI_POP4_5_PRIMARY_CN -> 12 -> ACR50
                  }")

non-working code

library(DiagrammeR)

# A minimal plot
DiagrammeR::grViz("digraph {

                  graph[layout = dot, rankdir = LR]

                  population=BARI_POP4_5_PRIMARY_CN.csv
                  12
                  ACR50

                  population=BARI_POP4_5_PRIMARY_CN.csv -> 12 -> ACR50
                  }")

The result should be like: but with population=BARI_POP4_5_PRIMARY_CN.csv,12,ACR50 in the positions of a, b and c respectively.

You don't use equal signs in diagrammer canonical syntax. Use population=['text'] I'm not on my computer so can't provide a detailed answer. — NelsonGon, Jan 16 '19 at 20:22
In which of the two 'population=BARI_POP4_5_PRIMARY_CN.csv'? — firmo23, Jan 16 '19 at 20:33
Could you explain what these arrows are implying? Also are these node labels? If yes, why have two populations? — NelsonGon, Jan 16 '19 at 20:34
I followed exactly the 1st example here https://mikeyharper.uk/flowcharts-in-r-using-diagrammer/ — firmo23, Jan 16 '19 at 20:37

NelsonGon · Accepted Answer · 2019-01-16T20:55:08.820

1

Does this work for you? Shapes can be modified later

      library(DiagrammeR)
grViz(
  "digraph{
    graph[layout='dot',outputorder=edgesfirst,overlap=T,rankdir=LR]

 b[label='population=BARI_POP4_5_PRIMARY_CN.csv']
 c [label='12']
 d[label='ACR50']
 b->c[label='link1']
 c->d[label='link2']
 }")

Currently:

Shape Changes: Appears nicer

grViz(
  "digraph{
    graph[layout='dot',outputorder=edgesfirst,overlap=T,rankdir=LR]
    node[shape='box']

 b[label='population=BARI_POP4_5_PRIMARY_CN.csv']
 c [label='12']
 d[label='ACR50']
 b->c[label='link1']
 c->d[label='link2']
 }")

edited Jan 16 '19 at 20:55

answered Jan 16 '19 at 20:38

NelsonGon

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Edited. You can remove link1 and link2 by leaving the "label" attributes blank – NelsonGon Jan 16 '19 at 20:49
I need the 'population=' as well before the 'BARI_POP4_5_PRIMARY_CN.csv' – firmo23 Jan 16 '19 at 20:54
1

Edited. Check if that helps! – NelsonGon Jan 16 '19 at 20:55
1

I have another Question related to DiagrameR and I will create a new Q for that – firmo23 Jan 16 '19 at 21:05
Alright, I'm off to bed! Hopefully someone answers it. I'll be happy to whenever I see it. Cheers! – NelsonGon Jan 16 '19 at 21:06

DiagrammeR does not accept specific syntax symbols

working code

non-working code

1 Answers1