# Logarithmic chart vs Linear

Logarithmic charts are often used in scientific and mathematical contexts, while linear charts are more common in business and economic settings. But what is the difference between these two types of charts? And when should you use each one? In this article, we’ll take a closer look at logarithmic and linear charts, and we’ll explore when it’s best to use each one.

## What is a logarithmic chart and what are its uses

A logarithmic chart is a graph that uses a logarithmic scale. This scale is nonlinear, meaning that each unit on the scale is a multiple of the previous unit. For example, if the scale is 2x, then each unit would represent 2 times the value of the previous unit. Logarithmic charts are often used to visualize data that has a wide range of values.

For example, if you were comparing the populations of two countries, one with 100 million people and one with 10 million people, it would be difficult to accurately compare the two values on a linear scale.

However, if you were to use a logarithmic scale, you would be able to more easily see the difference between the two values. Logarithmic charts can also be used to visualize data that has a large range of values but a small number of actual data points. For example, if you were looking at the population of a city over time, you might only have data for every 10 years. By using a logarithmic scale, you would still be able to see the overall trend even though there are only a few data points.

## How does a logarithmic chart differ from a linear chart

A logarithmic chart is a graph that uses a logarithmic scale. This means that the value of each tick mark is the exponent of a certain number, typically 10. For example, on a logarithmic scale with base 10, the numbers 1, 10, 100, and 1000 would have tick marks at 0, 1, 2, and 3 respectively.

A linear chart is a graph that uses a linear scale. This means that the value of each tick mark is evenly spaced. For example, on a linear scale with an interval of 10, the numbers 20, 30, 40, and 50 would have tick marks at 2, 3, 4, and 5 respectively. Logarithmic charts are often used when data values span a large range, because they can compress the data into a more manageable form. Linear charts are often used when data values are close together, because they can provide more detail.

## When should you use a logarithmic chart over a linear chart

Logarithmic charts are best used when there is a large range of data values and the relationship between them is not immediately obvious. Linear charts, on the other hand, are better suited for data sets that increase at a constant rate. One way to think about it is that linear charts show change while logarithmic charts show relationships.

So, if you are trying to understand how two variables are related, a logarithmic chart will be more helpful than a linear chart. However, if you are simply trying to track changes over time, a linear chart will give you a clearer picture. In short, it depends on what you’re looking for. If you want to see relationships, use a logarithmic chart; if you want to see change, use a linear chart.

## Examples of when to use each type of chart

Logarithmic charts and linear charts are two common ways of visualizing data. Logarithmic charts are often used when there is a large range of values, as they compress the data into a more manageable form. Linear charts, on the other hand, are best suited for data that has a limited range of values. Here are a few examples of when to use each type of chart:

• If you’re tracking the stock market, a logarithmic chart is a good choice, as it can help you to see small changes in price amid large fluctuations.
• If you’re plotting the growth of a population over time, a linear chart is a better option, as it will show you even small changes in the rate of growth.
• If you’re comparing the sales figures of two companies, a linear chart will be more informative, as it will make it easier to see which company is performing better.

In general, logarithmic charts are best for data with a large range of values, while linear charts are better for data with a limited range of values. However, ultimately it’s up to the person interpreting the data to decide which type of chart is more appropriate.

## Which type of chart is best for your data set

Logarithmic charts and linear charts are both ways of representing data sets. Logarithmic charts use a logarithmic scale, while linear charts use a regular numerical scale. So, which type of chart is best for your data set?

There are a few things to consider when deciding which type of chart to use. First, think about the range of values in your data set. If the range is large, a logarithmic chart might be a better option because it can compress the data so that all the values can be seen on one chart. For example, if you are plotting data that ranges from 1 to 100,000, a logarithmic chart can compress that data so it all fits on one page. Linear charts can also be used to represent large data sets, but they often require multiple pages or sheets.

Second, think about the shape of your data set. Logarithmic charts are best for data sets that increase or decrease exponentially. Linear charts are best for data sets that have a more uniform shape. For example, if you are plotting the growth of a population over time, a logarithmic chart would be a better choice because population growth generally increases exponentially. If you are plotting the number of people who buy a product over time, a linear chart would be a better choice because sales tend to increase at a more uniform rate.

Third, think about what you want to emphasize in your data set. Logarithmic charts can be used to emphasize small changes in large numbers, while linear charts can be used to emphasize large changes in small numbers. For example, if you want to highlight the fact that the number of people using your product has doubled over the past year, a linear chart would be a better choice because it would show the increase more dramatically. However, if you want to highlight the fact that your product’s market share has increased by 0.1%, a logarithmic chart would be a better choice because it would show the increase more clearly.

Ultimately, there is no right or wrong answer when deciding which type of chart to use for your data set. It depends on what you want to emphasize and what will make your data easier for your audience to understand. Logarithmic charts and linear charts both have their own strengths and weaknesses, so it’s important to choose the type of chart that will best suit your needs.