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Create a report with total percentages per question option in R script


I've got a dataset with groups and a bunch of yes/no value (0=no, 1=yes). I'm trying to create a report with the totals per group, and nice layout, using just R-script.

Here's what I've got so far.

# test data (real data from API service is larger)
df_visits <- read.table(text = "
PATIENT_ID,RAND,UNIT_GT3,HEMOR_YN
1000,ARM1,1,0
1001,ARM2,0,0
1003,ARM1,1,0
1005,ARM1,1,0
1006,ARM2,1,1
1008,ARM2,0,0
1009,ARM1,1,1
1010,ARM2,1,0
1011,ARM1,1,0
1014,ARM2,0,0
1015,ARM2,1,0
1018,ARM1,1,1
", header = TRUE, sep = ",")

# results per group, using 'ifelse' feels clunky but it works
df_per_group  <- data.frame(
  cbind(
    RAND     = tapply(df_visits$RAND,     list(df_visits$RAND), max, na.rm=TRUE),
    UNIT_GT3_Y = tapply(ifelse(df_visits$UNIT_GT3 == 1, 1, 0), list(df_visits$RAND), sum, na.rm=TRUE),
    UNIT_GT3_N = tapply(ifelse(df_visits$UNIT_GT3 == 0, 1, 0), list(df_visits$RAND), sum, na.rm=TRUE),
    HEMOR_YN_Y = tapply(ifelse(df_visits$HEMOR_YN == 1, 1, 0), list(df_visits$RAND), sum, na.rm=TRUE),
    HEMOR_YN_N = tapply(ifelse(df_visits$HEMOR_YN == 0, 1, 0), list(df_visits$RAND), sum, na.rm=TRUE)
  )
)

# t{base} = Matrix Transpose
df_pivot <- as.data.frame(t(df_per_group))

The resulting df_pivot dataframe looks like this and I can export it using write.csv():

# RND          ARM1  ARM2
# ------------+-----+-----+
# UNIT_GT3_Y  |   6 |   3 |
# UNIT_GT3_N  |   0 |   3 |
# HEMOR_YN_Y  |   2 |   1 |
# HEMOR_YN_N  |   4 |   5 |
# ------------+-----+-----+

However, I would like the goal dataset to also have total percentages per question, and have nicer question labels, so something like this:

# RND            ARM1         ARM2
# --------------+-------------+------------+
# Units>3 : Yes |   6  (100%) |    3 (50%) |
#           No  |   0    (0%) |    3 (50%) |
# --------------+-------------+------------+
# Hemmorage Yes |   2 (33.3%) |  1 (16.7%) |
#           No  |   4 (66.7%) |  5 (83.3%) |
# --------------+-------------+------------+

Is there a way change the labels and to add the percentages per question like that?
Also, I'm new to R-script so is there maybe a more efficient way to get the desired result?


Solution

  • You could use the tables package which allows you to generate the summary table directly out of the initial data :

    library(tables)
    
    tables::tabular(((`Units>3` = factor(ifelse(UNIT_GT3==0,'No','Yes'),levels=c('Yes','No'))) +
                     (Hemmorage = factor(ifelse(HEMOR_YN==0,'No','Yes'),levels=c('Yes','No'))))
                    ~(RND = factor(RAND))* ((n=1) + Percent(Equal(factor(RAND))))
                    ,data = df_visits)
    
                  RND                      
                   ARM1         ARM2        
                   n    Percent n    Percent
     Units>3   Yes 6    100.00  3    50.00  
               No  0      0.00  3    50.00  
     Hemmorage Yes 2     33.33  1    16.67  
               No  4     66.67  5    83.33  
    

    EDIT : following your question in comments :

    tables::tabular(((`Units>3` = factor(ifelse(UNIT_GT3==0,'No','Yes'),levels=c('Yes','No'))) +
                       (Hemmorage = factor(ifelse(HEMOR_YN==0,'No','Yes'),levels=c('Yes','No'))))
                    ~(Total = 1)+(RND = factor(RAND))* ((Nb=1) + Percent(Equal(factor(RAND))))
                    ,data = df_visits)
    
                         RND                      
                         ARM1         ARM2        
                   Total Nb   Percent Nb   Percent
     Units>3   Yes 9     6    100.00  3    50.00  
               No  3     0      0.00  3    50.00  
     Hemmorage Yes 3     2     33.33  1    16.67  
               No  9     4     66.67  5    83.33