Specifying column number in Principal Component Analysis in R

I am carrying out PCA in R. Instead of carrying out PCA from Columns 7-30, I want to select Column number 4 and 15-30. How can I adjust the columns in the code clim_data <- read.csv("MergedCSV_43X47Y_CanESM.csv") str(clim_data) colSums(is.na(clim_data)) numerical_data <- clim_data[,7:30] head(numerical_data) data_normalized <- scale(numerical_data) head(data_normalized) corr_matrix <- cor(data_normalized) ggcorrplot(corr_matrix) >Solution : to select specific… Read More Specifying column number in Principal Component Analysis in R

What causes the "Argument expression expected" error in this Angular 13 app?

I am working on an e-commerce app who’s front-end is made in Angular 13. The below code is intended to sum the prices of the items in the cart: import { Component, OnInit } from ‘@angular/core’; @Component({ selector: ‘.app-top-cart’, templateUrl: ‘./top-cart.component.html’, styleUrls: [‘./top-cart.component.css’] }) export class TopCartComponent implements OnInit { cartItems: any = [ {… Read More What causes the "Argument expression expected" error in this Angular 13 app?