Questions on applying common nonlinear scalings to functions or data--useful for making sense of data which varies over a large range.

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1answer
70 views

LogLinearPlot issues [closed]

I am currently fighting with certain LogLinearPlot shenanigans. You can see: Term reordering in the PlotLegends. No colors for the plot legends (the graphs themselves have them) Weird 'cutoff' in ...
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1answer
68 views

How to find and show a fitting line for ListLogLogPlot?

I got a set of data, and the ListLogLogPlot output appears to have a slope of $-1$. Thus, I try to fit a line to show the slope according to this answer. Thanks to ...
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1answer
80 views

Mysterious behaviour of ParallelTable

This question is related to Export bug in combination with ParallelTable?. The following code shows an even stranger bug than in the upper question. The y-axis should always be logarithmic, but in ...
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1answer
56 views

Thickness of frame ticks in a LogLogPlot [duplicate]

I want to plot my function in log-log scale and I want my ticks to be thicker. The code I wrote is: ...
2
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1answer
49 views

Fitting data in Log-Log scale

I want to fit my data from a txt file to a curve in log-log scale. What I tried to do was this: ...
2
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3answers
104 views

Contour plot of the imaginary portion of a function given the real part is positive

How do I plot the imaginary part of the function while its real part is positive? For example, for the below code I could have the imaginary part but I am not able to find the positive or negative ...
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1answer
96 views

Plotting probabilistic histogram on a specific range on log scale

I'm having a problem getting a combined effect - I have a list of values for which I'd like to plot a histogram. As a minimal example: ...
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2answers
85 views

How to generate a Log BarLegend for a DensityHistogram

I have a Log count histogram: DensityHistogram[myData, 100, {"Log", "Count"}, ColorFunction -> "Rainbow", ChartLegends -> Automatic] But ...
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2answers
183 views

How to change the scale of a ListContourPlot to logarithmic and combine it with a LogLinearPlot

My questions are: 1) how can I change the compressed scale to fine one like {y = 0.1, 1, 10}, {x = 0.01, 0.1, 1, 10, 100}. ...
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1answer
154 views

LogPlot hangs but Plot does not

This is a bit involved example, but I have not been able to reproduce it in more simple cases. ...
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5answers
259 views

Use different markers/colors in logarithmic plot depending on sign

Suppose you have the dataset xData = Table[i, {i, 1, 30}]; yData = RandomReal[{0.995, 1.005}, 30]; and want to plot the difference of ...
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1answer
61 views

ListlogLogPlot can't work on y axis

I have a table: ...
25
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2answers
756 views

Switch from logarithmic to linear scaling partway along a plot's axis

In the 2015 Planck satellite results, they give the latest plot of the temperature power spectrum of the cosmic microwave background, which I show below. (I am only interested in the main plot; you ...
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1answer
52 views

ListLogLinearPlot with Legends

I need to plot this data in Log scale for both axes, and also need to add a legend. But since they are joined dots, the legend that appears is just a dot instead the plotstyle I choose. ...
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2answers
374 views

Log Linear Fitting of a data: e.g. {xi,Log [yi]} and plotting the fit

I have a Log-Linear plot, and i'm unsure about how to fit a line to it. The data represents a I (current) vs V (voltage) curve. The exponential portion of this curve (linear in a Log-Linear plot) is: ...
0
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1answer
64 views

Using custom ticks with RegionPlot3D

I'm trying to change to plot a sphere using RegionPlot3D and look at how the shape of the sphere changes when you use a logarithmic scale (or any nonlinear scale) ...
0
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0answers
34 views

How to fix the PlotRange on LogPlot? [duplicate]

I'm plotting families of Boltzmann'esque distribution functions $\propto\exp\left(-{\dfrac{\varepsilon+{\mathcal O}(\varepsilon^2)}{k_\mathrm{B} T}}\right)$. But it won't let me fix the ...
5
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1answer
112 views

Specifying WorkingPrecision in LogLogPlot produces invalid plots [duplicate]

I seem to have found a bug with LogLogPlot in Version 10. If I specify a working precision, the function produces total garbage. Here is a simple example. The first ...
0
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1answer
59 views

Problems using a complicated function within a LogLinearPlot [duplicate]

my problem is that I have a rather large function which I'm trying to plot, which looks something like this: ...
2
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2answers
165 views

How to do dynamic range selection for data fitting in Log plot?

In linear plot, this can be achived by Locator like this: http://mathematica.stackexchange.com/a/24935/13580 ...
1
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1answer
268 views

BarChart with Log-Scaling and Error-Bars [duplicate]

I want to make a BarChart with Log-Scaling and Error-Bars. I can do both individually: ...
1
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1answer
102 views

Is there a LogBeta function like the LogGamma?

In a computation, I need Log[Beta[alpha+j,beta-j+n]] of some kind. Is there a LogBeta function built-in to avoid any under/over ...
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3answers
598 views

Functional defined Ticks of LogLinearPlot does not work

Bug introduced in 10.0 and persisting through 10.3 or later version 10 $Version "10.0 for Microsoft Windows (64-bit) (June 29, 2014)" Consider three ...
12
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0answers
192 views

Plotting extra parametric axes

We are trying to plot a figure as below from data points. This version is a postprocessed plot (in Illustrator) just to obtain the skew axes. The rest is plotted with ...
6
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1answer
124 views

Issue with combining weighted data log histograms

I have a bit of a strange problem. I'd like to overlay 3 different logarithmic Histograms with two of them stacked and one separate [*]. Without weights the solution is simple: ...
12
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1answer
797 views

Thickness of logarithmic tick marks

Bug introduced in 8 or earlier and persisting through 10.3 or later I'm trying to plot a graph wit a logarithmic y-axis. Since I'm exporting the graph to pdf and later printing it, I want to ...
4
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0answers
556 views

ErrorListLogPlot gives wrong error bars on log scale

From this and this post I learned how to use ErrorListLogPlot and its family to add error bars on top of a list of mean values. However, consider this simple ...
3
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0answers
83 views

BoxWhiskerChart with logarithmic axes 2

I actually already found my answer on the question, however it is not working. see BoxWhiskerChart with logarithmic axes I want to create a boxwiskerchart with a logaritmic axes. But when I try ...
7
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3answers
576 views

How to transpose x and y axes on a LogPlot?

Consider the following simple LogPlot: LogPlot[Exp[x],{x,0,5}] Is there a nice way to switch the axes of a LogPlot? I'm aware that plotting the inverse ...
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1answer
413 views

Logarithmic curve fit in data

I have the following data which are the theoretical: ...
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2answers
1k views

How to get grid lines at all (log) tick marks in Version 10?

In Version 7 using GridLines -> Automatic (or All) would put a grid line at every log-spaced tick mark: ...
0
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1answer
698 views

Using Show to place a ParametricPlot on a LogLog scale

I wish to have a few plots on the same graph: ListLogLogPlot, LogLogPlot and a ParametricPlot drawing lines perpendicular to the x-axis. The problem is however that ParametricPlot doesn't seem to have ...
3
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1answer
397 views

Wavelength, wavenumber, energy and frequency in a ruler

I would like to generate set of four axis relating wavelength, wavenumber, energy and frequency in an arbitrary range. Like in this image but without the labels such as "RADAR". The selection of ...
1
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3answers
263 views

Chart with its ticks in geometric progression

I have to render a chart with an axis that has ticks with the following values: 250, 500, 1000, 2000, 4000, 8000 I first thought it was a logarithmic scale. But ...
6
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1answer
151 views

Why PlotRange doesn't work for this set of values? [duplicate]

This code, doesn't show me data corresponding to x axis values 1000 and 10000 ...
2
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1answer
129 views

Why is ListLogPlot skipping entire decades?

I'm having an issue with Mathematica wherein, when trying to use ListLogPlot, the scale of the y-axis skips entire decades. Instead of 1, 10, 100, 1000, it goes more like 10^2,10^4,10^6,10^8. I need ...
3
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4answers
432 views

Base 2 Tick Labels for ListLogLogPlot

I am using ListLogLogPlot and would like to express the x-axis tick labels in powers of 2 instead of the default powers of 10. Does anybody have experience with ...
3
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2answers
2k views

Line of best fit on LogLog plot

I have a LogLog plot, and i'm unsure about how to fit a line to it. The data represents a calibration curve. ...
0
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0answers
358 views

Interpolation of multidimensional data organized logarithmically

The following threads call our attention to the fact that "accuracy of Interpolation will be worse with an unstructured grid", in the context of interpolation of 3d data: interpolation of 3D data ...
5
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1answer
1k views

Asymmetric X and Y error bars on ListLogPlot

The wonderful error bar log plots package ErrorBarLogPlots from V6 no longer positions labels correctly (since ...
2
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1answer
845 views

Histogram with a logarithmic scale for the y-axis

How can I get a histogram with a logarithmic scale only on the the y-axis? With ...
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0answers
122 views

Smoothing a function

NDsolve gives me a solution to a certain NL PDE. I want to evaluate the rate of exponential decay of the maxima of the solutions in time. So, I plot ...
18
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1answer
3k views

Logarithmic scale in a DensityPlot and its legend

I was recently faced with the task of creating a DensityPlot with a logarithmic colour scale, and with providing it with an appropriate legend. Since I could not find any resources to this effect on ...
7
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2answers
908 views

How to plot BarChart with error bars on logarithmic scale in Mathematica 9?

I'm quite new in Mathematica, and I would like to ask you to consider the next case: I need to plot bar chart with error bars on logarithmic scale. From Wolfram site I took the function which allows ...
3
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2answers
2k views

How to do the log scale plot for ListContourPlot

My current code is: ...
2
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1answer
929 views

Plot3D with a log scale only along the y-axis

I would like to ask how to make a 3D plot (maybe using Plot3D) with a logarithmic scale along the y-axis? For example: I have a function, $f(x) = 2(1 + a\,x^4)/x^2$, where $x$ varies from 0 to 20 ...
9
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4answers
461 views

How to bend a logarithmic number line into a circle

One way to plot a sequence of numbers on a logarithmic number line is this: ...
5
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3answers
956 views

Log-log scale smooth histogram

How can I create a smooth histogram with a log-log scale? I can use Histogram[data, "Log", "LogCount"] to get a log-log histogram, or I can use ...
5
votes
1answer
807 views

How to scale Histogram counts with the value of bin center?

I am analyzing some variates from a steeply falling power-law distribution (approximately with a power index -4) using Histogram[data, Automatic, "PDF"] While ...