Difference between classification and regression

Use SVM forecast , notice 'type'=‘classfication’ What makes the forecast is the classification , Also have ‘type’='function estimation' What makes the prediction is regression , So let's talk about the difference between classification and regression .

In general ： In the prediction is the output value

Quantitative output （ Output the determined value ） It's called regression , Or continuous variable prediction ;
Qualitative output （ The output is a binary classification problem ,0 Being positive ,1 Why not , Or multiple categories ） It's called classification , Or discrete variable prediction .

for instance ：
Predict the temperature of tomorrow , This is a return mission ;
Predict that tomorrow will be cloudy 、 Sunny or rainy , It's a sort of task .