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rakun

Germany
1 Posts
Posted - 05/27/2024 :  03:07:08 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
I'm so new to the Origin and I need to plot a huge data set but not all columns are necessary so I need to write a script.

I need to select (x,y) pairs with respect to the following parametrization

parm = floor((end - start) / (i * 2)) + 1;

so my script is

double start = 1;
double end = 200;
double i = 20;

int parm = floor((end - start) / (i * 2)) + 1;

int X[parm];
int Y[parm];

for (int k = 0; k < parm; k++) {
X[k] = start + k * i * 2;
Y[k] = X[k] + 1;
}


for (int k = 0; k < parm; k++) {
if (X[k] <= end) {
wks.colSel(X[k], 1);
}
if (Y[k] <= end) {
wks.colSel(Y[k], 1);
}
}

I keep receiving "#Command Error!". I just can't understand where is the problem. Does anyone have any suggestion?
Edited by - rakun on 05/27/2024 03:12:53 AM

aplotnikov

Germany
169 Posts
Posted - 05/27/2024 :  06:06:52 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
LT does not support array declaration in C-style with square brackets, you have to use loose datasets instead:
dataset dsX, dsY;
int k;
loop(k, 1, parm) {
   dsX[k] = start + (k-1) * i * 2;
   dsY[k] = dsX[k] + 1;
}


https://www.originlab.com/doc/de/LabTalk/ref/Datasets

PS. You can save time by reading of manuals.
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