Die Callback-Funktion draw
scheint keinen Zugriff auf die Daten innerhalb des Callbacks zu haben, das an d3.csv()
bereitgestellt wird. In dem Rückruf console.log
druckt:Kein Zugriff auf meine Daten in der Callback-Funktion der d3.csv() -Methode
Daten: null
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Correlation XX</title>
<script src="d3v4.js"></script>
<script type="text/javascript">
function draw(data) {
console.log("data: " + data); // <-- talking about this line
var width = 860,
height = 500;
var svg = d3.select("body")
.append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(50, 50)");
}
</script>
</head>
<body>
<script type="text/javascript">
d3.csv("modified_data_titanic.csv", function(data) {
data.forEach(function(d) {
d.Age = +d.Age;
d.Survived = +d.Survived;
});
}, draw);
</script>
</body>
</html>
Die CSV-Daten:
"","PassengerId","Survived","Pclass","Name","Sex","Age","SibSp","Parch","Ticket","Fare","Cabin","Embarked","Child","Survived_new","Category"
"1",1,0,3,"Braund, Mr. Owen Harris","male",22,1,0,"A/5 21171",7.25,"","S","FALSE",0,"20-29 m"
"2",2,1,1,"Cumings, Mrs. John Bradley (Florence Briggs Thayer)","female",38,1,0,"PC 17599",71.2833,"C85","C","FALSE",0,"30-39 f"
"3",3,1,3,"Heikkinen, Miss. Laina","female",26,0,0,"STON/O2. 3101282",7.925,"","S","FALSE",0,"20-29 f"
"4",4,1,1,"Futrelle, Mrs. Jacques Heath (Lily May Peel)","female",35,1,0,"113803",53.1,"C123","S","FALSE",0,"30-39 f"
"5",5,0,3,"Allen, Mr. William Henry","male",35,0,0,"373450",8.05,"","S","FALSE",0,"30-39 m"
"6",6,0,3,"Moran, Mr. James","male",NA,0,0,"330877",8.4583,"","Q",NA,0,NA
"7",7,0,1,"McCarthy, Mr. Timothy J","male",54,0,0,"17463",51.8625,"E46","S","FALSE",0,"50-59 m"
"8",8,0,3,"Palsson, Master. Gosta Leonard","male",2,3,1,"349909",21.075,"","S","TRUE",0,"0-9 m"
"9",9,1,3,"Johnson, Mrs. Oscar W (Elisabeth Vilhelmina Berg)","female",27,0,2,"347742",11.1333,"","S","FALSE",0,"20-29 f"
"10",10,1,2,"Nasser, Mrs. Nicholas (Adele Achem)","female",14,1,0,"237736",30.0708,"","C","TRUE",0,"10-19 f"
"11",11,1,3,"Sandstrom, Miss. Marguerite Rut","female",4,1,1,"PP 9549",16.7,"G6","S","TRUE",0,"0-9 f"
"12",12,1,1,"Bonnell, Miss. Elizabeth","female",58,0,0,"113783",26.55,"C103","S","FALSE",0,"50-59 f"
"13",13,0,3,"Saundercock, Mr. William Henry","male",20,0,0,"A/5. 2151",8.05,"","S","FALSE",0,"20-29 m"
Hintergrundinfo: Mein eigentliches Ziel ist eine Spalte zu verwenden, wie Alter oder Überlebt als die Bereich für die X-Achse.
Geben Sie die Daten nach Ihrem ForEach zurück. 'data.forEach (Funktion (d) { d.Age = + d.Age; d.Survived = + d.Survived; }); Rückgabedaten; ' – Adrian