[R] dercribe: to get the mean and sd, and print with paste

Of course you can hard-coded the standard deviation and mean GPA values.

like:

R 复制代码
#Using the command describe, tell what is the standard deviation and the mean GPA of the students in Year 4 (GE_survey_Y4)
#the variable name is Q19_actual_GPA
#Please write your code below
library(psych)
describe(GE_survey_Y4$Q19_actual_GPA)

and:

R 复制代码
standard_deviation <-0.31
print(standard_deviation)
mean_GPA1 <- 3.33
print(mean_GPA1)

but you have an alternative way to dynamically do it:

Create a df to store the sedcribe result and use stats$ to get the stored answer:

R 复制代码
stats <- describe(GE_survey_Y4$Q19_actual_GPA)
standard_deviation <- stats$sd
mean_GPA1 <- stats$mean

The instruction "#Please write a sentence with your answer below" is asking you to provide a written interpretation or summary of the results obtained from your code. This is often done in academic or professional settings to ensure that the reader understands the significance of the results without having to interpret the code themselves.

R 复制代码
If you have a variable statsanswer1 containing the number 7 and you want to report it in a sentence, you can use the paste() function to concatenate the text with the value of the variable. Here's how you can do it:

statsanswer1 <- 7
report_sentence <- paste("The answer is", statsanswer1)
print(report_sentence)

In this code, paste() combines the string "The answer is" with the value of statsanswer1 to create the sentence "The answer is 7". The print() function is then used to display the sentence.

Don't use "+" or "," directly, may work in Java or Python but not here.

相关推荐
Highcharts.js16 小时前
Highcharts 纯 JavaScript 图表库深度使用评测
开发语言·前端·javascript·功能测试·ecmascript·highcharts·技术评测
瑶池酒剑仙17 小时前
C++类和对象完全指南:从封装继承多态到内存布局的面向对象宝典(雨夜论道)
c语言·开发语言·c++·visual studio
三品吉他手会点灯17 小时前
C语言学习笔记 - 27.C编程预备计算机专业知识 - 什么是字节
c语言·开发语言·笔记·学习
许彰午17 小时前
政务远程帮办部署踩坑实录——从互联网到政务外网
开发语言·网络·政务
存在的五月雨18 小时前
项目中 Vitest 配置详解:vitest.config.ts
开发语言·javascript·vue.js
野犬寒鸦18 小时前
Claude Code:终端AI编程助手全指南(附带指令全讲解)
开发语言·后端·面试·ai编程
淡笑沐白18 小时前
JavaScript零基础到精通
开发语言·javascript·ecmascript
Languorous.18 小时前
C++智能指针详解:原理、使用及避坑指南
开发语言·c++
广州灵眸科技有限公司18 小时前
瑞芯微(EASY EAI)RV1126B yolov11-track多目标跟踪部署教程
linux·开发语言·网络·人工智能·yolo·机器学习·目标跟踪