Importing an Excel Workbook into R

June 4, 2014
By

(This article was first published on The Pith of Performance, and kindly contributed to R-bloggers)

usually import Excel data in CVS format A new package in CRAN facilitates reading in entire Excel workbook and selecting worksheets and cells from there. example....


require(XLConnect)

# Load Excel workbook into memory
wb <- loadWorkbook("~/Desktop/R XLConnect/82scaling.xlsx", create = FALSE)

# Convert a sheet to a data frame
df <- readWorksheet(wb,
sheet = "SGI-NUMA",
startRow = 3,
endRow = 15,
startCol = which(LETTERS=="A"),
endCol = which(LETTERS=="P")
)

print(df)

# Measured KRays.Sec RelCap Efficiency Inverse Fit Transform Trendline Parameters
#1 CPU (p) X(p) C=X(p)/X(1) C/p p/C p-1 (p/C)-1 Quadratic Coefficients
#2 1 20 1.00 1.00 1.00 0 0.00 a 5.0000E-06
#3 4 78 3.90 0.98 1.03 3 0.03 b 0.0500
#4 8 130 6.50 0.81 1.23 7 0.23 c 0.0000
# ...

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