## SEMILOGARITHMIC PLOT MATLAB

Description semilogx plot data as logarithmic scales for the x -axis. Your error sounds like when you read your data in with csvread , your getting a 2xN matrix, so transpose it. Matlab will simulate the rectilinear scale of paper and it has logarithmic and semi-logarithmic scales as well. The last 10 values can be seen below rest omitted for brevity:. You won’t hit the axis anymore. The values in Y can be numeric, datetime, duration, or categorical values. Select the China site in Chinese or English for best site performance. The scale is a series of marks called graduations.

Using data you posted above: Stack Overflow works best with JavaScript enabled. If Y contains complex values, then semilogx Y is equivalent to semilogx real Y ,imag Y. Examples collapse all Logarithmic Scale for x-Axis. Matlab provides a grid on or grid off option. The values in Yn can be numeric, datetime, duration, or categorical values. You say you want your line to hit the x-axis, but notice that the bottom of your axis is 0.

Examples collapse all Logarithmic Scale for x-Axis. Select the China site in Chinese or English for best site performance. Email Required, but never shown. The problem is that it stops somewhere around 24 on the x-axis, whereas I have 30 values. MathWorks does not warrant, and disclaims all liability for, the accuracy, suitability, or fitness for purpose of the translation. When I tried the above code segment, I get the following error message Error using vertcat Dimensions of matrices being concatenated are not consistent.

When I copy and past your list of values for M in your post, I get an 11×2 matrix. This would also be the 1 st sub window in the second row.

If Y contains complex values, then semilogy Y is equivalent to semilogy real Y ,imag Y. This is machine translation Translated by. Here the colon takes on another function and specifies dotted. Matlab provides a grid on or grid off option.

Select the China site in Chinese or English for best site performance. There are also 3-D plotting options available. The last 10 values can be seen below rest omitted for brevity: When plotting experimental data points, use a data marker to show points: Also, this should work because your sample data is pretty monotonic in how it goes to zero.

Description plott plots data with logarithmic scale for the y -axis. It plots the columns of Y versus their index. Rectangular, semi-logarithmic and logarithmic scales to various Engineering applications. Data points may be entered in two vectors, x and y or using any variable names.

Syntax semilogx Y semilogx X1,Y1, These command lines can be placed in any order in your program. Any ideas how to achieve this?

Your error sounds like when you read your data ploot with csvreadyour getting a 2xN matrix, so transpose it.

The independent variable will be entered on the horizontal axis, Abscissa natlab x-axis. The values in Yn must be numeric. The option ax can precede any of the input argument combinations in the previous syntaxes.

Tips If you do not specify a color when plotting more than one line, semilogx automatically cycle through the colors and line semlogarithmic in the order specified by the current axes ColorOrder and LineStyleOrder properties. Usage semilogarighmic and limitations: Technically, the 0 is infinitely below in a logarithmic plot. All Examples Functions More. The output I get is: If only one of Xn or Yn is a matrix, semilogy plots the vector argument versus the rows or columns of the matrix, along the dimension of the matrix whose length matches the length of the vector.

### Semilogarithmic plot – MATLAB semilogx

Based on your location, we recommend that you select: The values in Y can be numeric, datetime, duration, or categorical values. The semilogx function ignores the imaginary component in all other uses of this function. Normally you should not make data points visible when plotting theoretical equations. Usage notes and limitations: Click the button below to return to the English version of the page. I have the following code segment:. Matlab will simulate the rectilinear scale of paper and it has logarithmic and.

It plots the columns of Y versus their index. Sign up using Facebook. The option ax can precede any of the input argument combinations in the previous syntaxes. Translated by Mouseover text to see original. For a list of properties, see Line Properties. I have the following code segment: Create a plot with a logarithmic scale for the x-axis and a linear scale for the y-axis.

## General Graphing Procedures

Based on your location, we recommend that you select: Translated by Mouseover text to see original. If multiple curves are plotted, add text or legend for identification.

MathWorks does not warrant, and disclaims all liability for, the accuracy, suitability, or fitness for purpose of the translation. You won’t hit the axis anymore. That would show a line starting from point 24 going far down, which can be interpreted in the manner you are looking for.