[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
小刘学技术5 分钟前
AI人工智能中的类别不平衡问题:成因、影响与解决方案
开发语言·人工智能·python·机器学习
兰令水11 分钟前
hot100【acm版】【2026.7.21打卡-java版本】
java·开发语言·算法·leetcode·面试
2501_9142459321 分钟前
Java应用性能调优与生产监控部署:2026年实战手册
java·开发语言
时光不染。回忆不淡40 分钟前
Python基础语法教程
开发语言·python
爱喝水的鱼丶44 分钟前
SAP-ABAP:一次关于“交货日期”的增强需求:从复杂增强到标准功能的回归之旅
运维·开发语言·性能优化·sap·abap·经验交流
星恒随风1 小时前
C++ STL 详解:list 的使用、迭代器失效、模拟实现与 vector 对比
开发语言·数据结构·c++·笔记·学习·list
Tim_101 小时前
【C++】019、内存泄漏
java·开发语言
牢姐与蒯1 小时前
c++之异常
开发语言·c++·c++11
此生决int1 小时前
深入理解C++系列(02)——类和对象(上)
开发语言·c++
-银雾鸢尾-6 小时前
C#中的拓展方法
开发语言·c#