Hello im having trouble with processing where its not outputting the data of my columns? It's reading the rows but inside each row it outputs it as a 0 except for "Number" even though there is data inside them?
Also i dont know how to seperate the cities as it definitly is not a int value?
My code:
int[][] data;
void setup() {
size(800, 600);
String[] lines = loadStrings("datasheet.csv");
println("there are " + lines.length + " lines");
String[] header = split(lines[0], ',');
println(header[0] + " " + header[1] + " " + header[2] + " " + header[3] + " " + header[4]);
data = new int[5][lines.length-1];
for (int i = 1 ; i < lines.length; i++) {
String[] dataStr = split(lines[i], ',');
data[0][i-1] = int (dataStr[0]);
data[1][i-1] = int (dataStr[1]);
data[2][i-1] = int (dataStr[2]);
data[3][i-1] = int (dataStr[3]);
data[4][i-1] = int (dataStr[4]);
println (data[0][i-1] + " " + data[1][i-1] + " " + data [2][i-1] + " " + data [3][i-1] + " " +
data
[4][i-1]);
}
}
There are many issues in your code which you need to address:
A. Instead of printing the header in the following way:
println(header[0] + " " + header[1] + " " + header[2] + " " + header[3] + " " + header[4]);
you could do it in the following elegant way:
println(String.join(" ", header));
B. You need to declare data as new int[no-of-rows][no-of-columns] but you have done it the other way round. Moreover, instead of using a hardcoded value like 5, you should have used header.length.
C. Printing the data can also be done elegantly using String::join in the same way as done above for printing the header.
Given below is the code incorporating these points:
String[][] data;
void setup() {
size(800, 600);
String[] lines = loadStrings("datasheet.csv");
println("there are " + lines.length + " lines");
String[] header = split(lines[0], ',');
println(String.join(" ", header));
data = new String[lines.length -1][header.length];
for (int i = 1 ; i < lines.length; i++) {
String[] dataStr = split(lines[i], ',');
data[i-1] = dataStr;
println(String.join(" ", dataStr));
}
}
Feel free to comment in case of any doubt/issue.