Quartiles and Inter-Quartile Range

Interestingly, Hmisc::describe() and summary() seem to be using one Type, and
stats::fivenum() seems to be using another Type.

fivenum(cbiomass)

[1]  910.0 1039.0 1088.5 1156.5 1415.0

summary(cbiomass)

Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
    910    1048    1088    1104    1139    1415

describe(cbiomass)$counts

n  missing   unique     Mean      .05      .10      .25      .50     
.75 
    "12"      "0"     "12"   "1104" " 920.5" " 938.3" "1047.5" "1088.5"
"1138.8" 
     .90      .95 
"1248.7" "1327.0" 

cheers,
-Girish

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