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basics_of_R.html
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<title>Basics of R</title>
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var columnNavigationWidthPX = 5;
var renderColumnNavigation = function(increment, backwards) {
var arrow = document.createElement("div");
arrow.setAttribute("style",
"border-top: " + columnNavigationWidthPX + "px solid transparent;" +
"border-bottom: " + columnNavigationWidthPX + "px solid transparent;" +
"border-" + (backwards ? "right" : "left") + ": " + columnNavigationWidthPX + "px solid;");
var header = document.createElement("th");
header.appendChild(arrow);
header.setAttribute("style",
"cursor: pointer;" +
"vertical-align: middle;" +
"min-width: " + columnNavigationWidthPX + "px;" +
"width: " + columnNavigationWidthPX + "px;");
header.onclick = function() {
columns.incColumnNumber(backwards ? -1 : increment);
me.animateColumns(backwards);
renderFooter();
clearSelection();
triggerOnChange();
};
return header;
};
var maxColumnWidth = function(width) {
var padding = 80;
var columnMax = Math.max(cachedPagedTableClientWidth - padding, 0);
return parseInt(width) > 0 ?
Math.min(columnMax, parseInt(width)) + "px" :
columnMax + "px";
};
var clearHeader = function() {
var thead = pagedTable.querySelectorAll("thead")[0];
thead.innerHTML = "";
};
var renderHeader = function(clear) {
cachedPagedTableClientWidth = pagedTable.clientWidth;
var fragment = document.createDocumentFragment();
header = document.createElement("tr");
fragment.appendChild(header);
if (columns.number > 0)
header.appendChild(renderColumnNavigation(-columns.visible, true));
columns.subset = columns.subset.map(function(columnData) {
var column = document.createElement("th");
column.setAttribute("align", columnData.align);
column.style.textAlign = columnData.align;
column.style.maxWidth = maxColumnWidth(null);
if (columnData.width) {
column.style.minWidth =
column.style.maxWidth = maxColumnWidth(columnData.width);
}
var columnName = document.createElement("div");
columnName.setAttribute("class", "pagedtable-header-name");
if (columnData.label === "") {
columnName.innerHTML = " ";
}
else {
columnName.appendChild(document.createTextNode(columnData.label));
}
column.appendChild(columnName);
var columnType = document.createElement("div");
columnType.setAttribute("class", "pagedtable-header-type");
if (columnData.type === "") {
columnType.innerHTML = " ";
}
else {
columnType.appendChild(document.createTextNode("<" + columnData.type + ">"));
}
column.appendChild(columnType);
header.appendChild(column);
columnData.element = column;
return columnData;
});
for (var idx = 0; idx < columns.getPaddingCount(); idx++) {
var paddingCol = document.createElement("th");
paddingCol.setAttribute("class", "pagedtable-padding-col");
header.appendChild(paddingCol);
}
if (columns.number + columns.visible < columns.total)
header.appendChild(renderColumnNavigation(columns.visible, false));
if (typeof(clear) == "undefined" || clear) clearHeader();
var thead = pagedTable.querySelectorAll("thead")[0];
thead.appendChild(fragment);
};
me.animateColumns = function(backwards) {
var thead = pagedTable.querySelectorAll("thead")[0];
var headerOld = thead.querySelectorAll("tr")[0];
var tbodyOld = table.querySelectorAll("tbody")[0];
me.fitColumns(backwards);
renderHeader(false);
header.style.opacity = "0";
header.style.transform = backwards ? "translateX(-30px)" : "translateX(30px)";
header.style.transition = "transform 200ms linear, opacity 200ms";
header.style.transitionDelay = "0";
renderBody(false);
if (headerOld) {
headerOld.style.position = "absolute";
headerOld.style.transform = "translateX(0px)";
headerOld.style.opacity = "1";
headerOld.style.transition = "transform 100ms linear, opacity 100ms";
headerOld.setAttribute("class", "pagedtable-remove-head");
if (headerOld.style.transitionEnd) {
headerOld.addEventListener("transitionend", function() {
var headerOldByClass = thead.querySelector(".pagedtable-remove-head");
if (headerOldByClass) thead.removeChild(headerOldByClass);
});
}
else {
thead.removeChild(headerOld);
}
}
if (tbodyOld) table.removeChild(tbodyOld);
tbody.style.opacity = "0";
tbody.style.transition = "transform 200ms linear, opacity 200ms";
tbody.style.transitionDelay = "0ms";
// force relayout
window.getComputedStyle(header).opacity;
window.getComputedStyle(tbody).opacity;
if (headerOld) {
headerOld.style.transform = backwards ? "translateX(20px)" : "translateX(-30px)";
headerOld.style.opacity = "0";
}
header.style.transform = "translateX(0px)";
header.style.opacity = "1";
tbody.style.opacity = "1";
}
me.onChange = function(callback) {
onChangeCallbacks.push(callback);
};
var triggerOnChange = function() {
onChangeCallbacks.forEach(function(onChange) {
onChange();
});
};
var clearBody = function() {
if (tbody) {
table.removeChild(tbody);
tbody = null;
}
};
var renderBody = function(clear) {
cachedPagedTableClientWidth = pagedTable.clientWidth
var fragment = document.createDocumentFragment();
var pageData = data.slice(page.getRowStart(), page.getRowEnd());
pageData.forEach(function(dataRow, idxRow) {
var htmlRow = document.createElement("tr");
htmlRow.setAttribute("class", (idxRow % 2 !==0) ? "even" : "odd");
if (columns.hasMoreLeftColumns())
htmlRow.appendChild(document.createElement("td"));
columns.subset.forEach(function(columnData) {
var cellName = columnData.name;
var dataCell = dataRow[cellName];
var htmlCell = document.createElement("td");
if (dataCell === "NA") htmlCell.setAttribute("class", "pagedtable-na-cell");
if (dataCell === "__NA__") dataCell = "NA";
var cellText = document.createTextNode(dataCell);
htmlCell.appendChild(cellText);
if (dataCell.length > 50) {
htmlCell.setAttribute("title", dataCell);
}
htmlCell.setAttribute("align", columnData.align);
htmlCell.style.textAlign = columnData.align;
htmlCell.style.maxWidth = maxColumnWidth(null);
if (columnData.width) {
htmlCell.style.minWidth = htmlCell.style.maxWidth = maxColumnWidth(columnData.width);
}
htmlRow.appendChild(htmlCell);
});
for (var idx = 0; idx < columns.getPaddingCount(); idx++) {
var paddingCol = document.createElement("td");
paddingCol.setAttribute("class", "pagedtable-padding-col");
htmlRow.appendChild(paddingCol);
}
if (columns.hasMoreRightColumns())
htmlRow.appendChild(document.createElement("td"));
fragment.appendChild(htmlRow);
});
for (var idxPadding = 0; idxPadding < page.getPaddingRows(); idxPadding++) {
var paddingRow = document.createElement("tr");
var paddingCellRow = document.createElement("td");
paddingCellRow.innerHTML = " ";
paddingCellRow.setAttribute("colspan", "100%");
paddingRow.appendChild(paddingCellRow);
fragment.appendChild(paddingRow);
}
if (typeof(clear) == "undefined" || clear) clearBody();
tbody = document.createElement("tbody");
tbody.appendChild(fragment);
table.appendChild(tbody);
};
var getLabelInfo = function() {
var pageStart = page.getRowStart();
var pageEnd = page.getRowEnd();
var totalRows = data.length;
var totalRowsLabel = options.rows.total ? options.rows.total : totalRows;
var totalRowsLabelFormat = totalRowsLabel.toString().replace(/(\d)(?=(\d\d\d)+(?!\d))/g, '$1,');
var infoText = (pageStart + 1) + "-" + pageEnd + " of " + totalRowsLabelFormat + " rows";
if (totalRows < page.rows) {
infoText = totalRowsLabel + " row" + (totalRows != 1 ? "s" : "");
}
if (columns.total > columns.visible) {
var totalColumnsLabel = options.columns.total ? options.columns.total : columns.total;
infoText = infoText + " | " + (columns.number + 1) + "-" +
(Math.min(columns.number + columns.visible, columns.total)) +
" of " + totalColumnsLabel + " columns";
}
return infoText;
};
var clearFooter = function() {
footer = pagedTable.querySelectorAll("div.pagedtable-footer")[0];
footer.innerHTML = "";
return footer;
};
var createPageLink = function(idxPage) {
var pageLink = document.createElement("a");
pageLinkClass = idxPage === page.number ? "pagedtable-index pagedtable-index-current" : "pagedtable-index";
pageLink.setAttribute("class", pageLinkClass);
pageLink.setAttribute("data-page-index", idxPage);
pageLink.onclick = function() {
page.setPageNumber(parseInt(this.getAttribute("data-page-index")));
renderBody();
renderFooter();
triggerOnChange();
};
pageLink.appendChild(document.createTextNode(idxPage + 1));
return pageLink;
}
var renderFooter = function() {
footer = clearFooter();
var next = document.createElement("a");
next.appendChild(document.createTextNode("Next"));
next.onclick = function() {
page.setPageNumber(page.number + 1);
renderBody();
renderFooter();
triggerOnChange();
};
if (data.length > page.rows) footer.appendChild(next);
var pageNumbers = document.createElement("div");
pageNumbers.setAttribute("class", "pagedtable-indexes");
var pageRange = page.getVisiblePageRange();
if (pageRange.first) {
var pageLink = createPageLink(0);
pageNumbers.appendChild(pageLink);
var pageSeparator = document.createElement("div");
pageSeparator.setAttribute("class", "pagedtable-index-separator-left");
pageSeparator.appendChild(document.createTextNode("..."))
pageNumbers.appendChild(pageSeparator);
}
for (var idxPage = pageRange.start; idxPage < pageRange.end; idxPage++) {
var pageLink = createPageLink(idxPage);
pageNumbers.appendChild(pageLink);
}
if (pageRange.last) {
var pageSeparator = document.createElement("div");
pageSeparator.setAttribute("class", "pagedtable-index-separator-right");
pageSeparator.appendChild(document.createTextNode("..."))
pageNumbers.appendChild(pageSeparator);
var pageLink = createPageLink(page.total - 1);
pageNumbers.appendChild(pageLink);
}
if (data.length > page.rows) footer.appendChild(pageNumbers);
var previous = document.createElement("a");
previous.appendChild(document.createTextNode("Previous"));
previous.onclick = function() {
page.setPageNumber(page.number - 1);
renderBody();
renderFooter();
triggerOnChange();
};
if (data.length > page.rows) footer.appendChild(previous);
var infoLabel = document.createElement("div");
infoLabel.setAttribute("class", "pagedtable-info");
infoLabel.setAttribute("title", getLabelInfo());
infoLabel.appendChild(document.createTextNode(getLabelInfo()));
footer.appendChild(infoLabel);
var enabledClass = "pagedtable-index-nav";
var disabledClass = "pagedtable-index-nav pagedtable-index-nav-disabled";
previous.setAttribute("class", page.number <= 0 ? disabledClass : enabledClass);
next.setAttribute("class", (page.number + 1) * page.rows >= data.length ? disabledClass : enabledClass);
};
var measuresCell = null;
var renderMeasures = function() {
var measuresTable = document.createElement("table");
measuresTable.style.visibility = "hidden";
measuresTable.style.position = "absolute";
measuresTable.style.whiteSpace = "nowrap";
measuresTable.style.height = "auto";
measuresTable.style.width = "auto";
var measuresRow = document.createElement("tr");
measuresTable.appendChild(measuresRow);
measuresCell = document.createElement("td");
var sampleString = "ABCDEFGHIJ0123456789";
measuresCell.appendChild(document.createTextNode(sampleString));
measuresRow.appendChild(measuresCell);
tableDiv.appendChild(measuresTable);
}
me.init = function() {