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Read Google Spreadsheet into R
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# This set of functions comes entirely form Andrie on stackoverflow | |
# http://stackoverflow.com/questions/22873602/importing-data-into-r-from-google-spreadsheet | |
readGoogleSheet <- function(url, na.string="", header=TRUE){ | |
stopifnot(require(XML)) | |
# Suppress warnings because Google docs seems to have incomplete final line | |
suppressWarnings({ | |
doc <- paste(readLines(url), collapse=" ") | |
}) | |
if(nchar(doc) == 0) stop("No content found") | |
htmlTable <- gsub("^.*?(<table.*</table).*$", "\\1>", doc) | |
ret <- readHTMLTable(htmlTable, header=header, stringsAsFactors=FALSE, as.data.frame=TRUE) | |
lapply(ret, function(x){ x[ x == na.string] <- NA; x}) | |
} | |
cleanGoogleTable <- function(dat, table=1, skip=0, ncols=NA, nrows=-1, header=TRUE, dropFirstCol=NA){ | |
if(!is.data.frame(dat)){ | |
dat <- dat[[table]] | |
} | |
if(is.na(dropFirstCol)) { | |
firstCol <- na.omit(dat[[1]]) | |
if(all(firstCol == ".") || all(firstCol== as.character(seq_along(firstCol)))) { | |
dat <- dat[, -1] | |
} | |
} else if(dropFirstCol) { | |
dat <- dat[, -1] | |
} | |
if(skip > 0){ | |
dat <- dat[-seq_len(skip), ] | |
} | |
if(nrow(dat) == 1) return(dat) | |
if(nrow(dat) >= 2){ | |
if(all(is.na(dat[2, ]))) dat <- dat[-2, ] | |
} | |
if(header && nrow(dat) > 1){ | |
header <- as.character(dat[1, ]) | |
names(dat) <- header | |
dat <- dat[-1, ] | |
} | |
# Keep only desired columns | |
if(!is.na(ncols)){ | |
ncols <- min(ncols, ncol(dat)) | |
dat <- dat[, seq_len(ncols)] | |
} | |
# Keep only desired rows | |
if(nrows > 0){ | |
nrows <- min(nrows, nrow(dat)) | |
dat <- dat[seq_len(nrows), ] | |
} | |
# Rename rows | |
rownames(dat) <- seq_len(nrow(dat)) | |
dat | |
} |
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