Agronomy4future

Sometimes, when creating graphs using R, there may be a need to include superscripts or subscripts in axis text or titles. In this post, I will introduce about how to enter text with superscripts or subscripts. I will generate one simple data and draw a graph to demonstrate. Here, I want to add superscripts or subscripts to the axis titles of the graph. For example, for the x-axis, I want to name it as “GenotypeTM” and for the y-axis, I…

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When we make graphs, the unit is great and the number would be overlapped. Here is an example. Now, I’d like to change the unit of number. For example, I want to divide each value by 1000, so that to show 5 to 30 in x-axis. We can add below codes.

I wrote many codes in R and now I want to delete all of them. You can click the broom icon to delete all. But, you can use this code to delete all.

I uploaded one .csv file to GitHub. Now I want to analyze this data in R. Simply I can download this file and upload to R. But let’s directly upload this file from GitHub to R. First, we need to know the URL address of this file. If you click your file name in GitHub, you can find the “Raw” button. So, let’s click this button. Then, in the address bar of your web browser, you can obtain the URL…

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I’ll generate one data. Then, I’ll make a bar graph about this data. To make a bar graph, data should be summarized. Now, I want to change legend name from N0 to 0kg N/ha, and N1 to 200kg N/ha. Simply we can add more code like this; scale_fill_manual(label=c(“0kg N/ha”,”200kg N/ha”), values=c(“grey75″,”grey25″)) What if we want to change the title of legend from Fertilizer to Treatment? Just add one code like this; labs(fill=”Treatment”,x=”Genotype”, y=”Yield”)

Let’s create a simple dataset and draw a bar graph with this data The values on the y-axis are in decimal points. I would like to display them as percentages. So, I will insert the code labels=scales::percent inside the scale_y_continuous() function. The complete code is as follows: The values on the y-axis have changed to percentages.

Recently, I have uploaded a large excel dataset into R. This data consists of 7,849 columns. Upon checking the excel file size, it’s approximately 1MB in size. Now, I’d like to share this data with someone else. However, instead of attaching it as an excel file, I want to send it as R code, allowing them to work with the data directly in R. Therefore, all I need to do is convert this data into code. Below is how you…

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After creating a graph using R, repeatedly copying and pasting it to move it becomes a cumbersome task. Today, I’ll demonstrate how to easily relocate the graph. Let’s generate some data and draw a graph to demonstrate. Running the code like this will display the graph in the Plot window. Then, each time, you’ll need to click Export, save it with a different name, or copy the image to place the graph where you want. In reality, this task is…

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If you visit FAOSTAT (https://www.fao.org/faostat/en/), you can download high-quality data related to agriculture. Recently, I conducted an analysis of the trends in global and European wheat harvest quantities. As a result, I performed data analysis similar to the following. The complete code for the above graph is as follows: In the above graph, it seems that the axis title labels are too close to the axis text. I’d like to increase the spacing a bit. From now on, I’ll be…

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Today, I’ll be introducing how to create stacked bar graphs using R Studio. To start, I will generate a data table as shown below. I’ll make stacked bar graphs using this data table. First of all, it’s necessary to summarize the data. I’ll use ddply() function. If I use this code, the error message pops up This is because when generating data, I used double quotation marks such as yield = c(rep(“15”, 5), rep(“18”, 5), rep(“20”, 8), rep(“14”, 7), rep(“21”,…

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