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Openxlsx blog post (20180424) - custom auto column width based on headers and values in data frame
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library(tidyverse) | |
library(openxlsx) | |
# Figure 1 | |
bldStyle <- createStyle(fontSize = 14, fontColour = "black", textDecoration = c("BOLD")) | |
wb <- createWorkbook() | |
addWorksheet(wb, "starwars") | |
writeData(wb, 1, starwars, colNames=TRUE, headerStyle = bldStyle) | |
saveWorkbook(wb, "Starwars_default.xlsx", overwrite = TRUE) | |
# Figure 2 | |
wb <- createWorkbook() | |
addWorksheet(wb, "starwars") | |
writeData(wb, 1, starwars, colNames=TRUE, headerStyle = bldStyle) | |
setColWidths(wb, sheet = 1, cols = 1:ncol(starwars), widths = "auto") | |
saveWorkbook(wb, "Starwars_autowide.xlsx", overwrite = TRUE) | |
# Figure 3 | |
wb <- createWorkbook() | |
addWorksheet(wb, "storms") | |
writeData(wb, 1, storms, colNames=TRUE, headerStyle = bldStyle) | |
setColWidths(wb, sheet = 1, cols = 1:ncol(storms), widths = "auto") | |
saveWorkbook(wb, "storms_autowide.xlsx", overwrite = TRUE) | |
# Figure 4 | |
wb <- createWorkbook() | |
addWorksheet(wb, "starwars") | |
hs1 <- createStyle(fgFill = "#f9f9f9", halign = "CENTER", textDecoration = "italic", | |
border = "TopBottomLeftRight", fontSize = 13) | |
row1 <- t(c("", "UseforBMI", "", "colors", "", "", rep("", 8))) | |
addStyle(wb, sheet = 1, hs1, rows = 1, cols = 1:ncol(row1)) | |
writeData(wb, 1, x = row1, colNames=FALSE, headerStyle = bldStyle) | |
writeData(wb, 1, x = starwars, startRow = 2, colNames=TRUE, headerStyle = bldStyle) | |
mergeCells(wb, 1, cols = 2:3, rows = 1) | |
mergeCells(wb, 1, cols = 4:6, rows = 1) | |
setColWidths(wb, sheet = 1, cols = 1:ncol(starwars), widths = "auto") | |
saveWorkbook(wb, "starwars_autowide_mergedcols.xlsx", overwrite = TRUE) | |
# Figure 5 | |
width_adjuster <- 1.5 | |
wb <- createWorkbook() | |
addWorksheet(wb, "starwars") | |
hs1 <- createStyle(fgFill = "#f9f9f9", halign = "CENTER", textDecoration = "italic", | |
border = "TopBottomLeftRight", fontSize = 13) | |
row1 <- t(c("", "UseforBMI", "", "colors", "", "", rep("", 8))) | |
addStyle(wb, sheet = 1, hs1, rows = 1, cols = 1:ncol(row1)) | |
writeData(wb, 1, x = row1, colNames=FALSE, headerStyle = bldStyle) | |
writeData(wb, 1, x = starwars, startRow = 2, colNames=TRUE, headerStyle = bldStyle) | |
mergeCells(wb, 1, cols = 2:3, rows = 1) | |
mergeCells(wb, 1, cols = 4:6, rows = 1) | |
# column widths based on values in the dataframe | |
width_vec <- apply(starwars, 2, function(x) max(nchar(as.character(x)) + width_adjuster, na.rm = TRUE)) | |
# column widths based on the column header widths | |
width_vec_header <- nchar(colnames(starwars)) + width_adjuster | |
# now use parallel max (like vectorized max) to capture the lengthiest value per column | |
width_vec_max <- pmax(width_vec, width_vec_header) | |
setColWidths(wb, sheet = 1, cols = 1:ncol(row1), widths = width_vec_max) | |
saveWorkbook(wb, "starwars_manualwide_mergedcols.xlsx", overwrite = TRUE) |
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