Frequency Magnitude histogram plot

2014 7 20
1 个回答
更新时间：2014 7 22
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0 个投票

Hi I have two variabes (Freq and magnitude) I want to plot the histogram so that I get Freq on y axis and magnitude on x-axis.
Please guide

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Wayne King
Wayne King 2014-7-20
Can you please attach your data or a picture of what you're trying to get. It's not clear from your question what you want.
Daniel kiracofe
Daniel kiracofe 2014-7-20
so, by definition, a "histogram" has counts on the y-axis. i.e. you can only plot a histogram of 1 variable, not 2. Unless I had misunderstood the question.
amberly hadden
amberly hadden 2014-7-21
编辑：Image Analyst 2014-7-21
Data Frequency
2.10-2.199 43
2.2-2.299 41
2.3-2.399 31
2.4-2.499 29
2.5-2.599 13
2.6-2.699 9
2.7-2.799 3
2.8-2.899 2
2.9-2.999 1

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回答（1 个）

Kelly Kearney
Kelly Kearney 2014-7-21

1 个投票

Is this what you had in mind?
xedge = 2.1:.1:3;
freq = [43 41 31 29 13 9 3 2 1];
bar(xedge, [freq 0], 'histc')

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Image Analyst
Image Analyst 2014-7-21
jay's "Answer" moved here since it's not an answer to the original question:
Nope I need binning of data and then to creat a histograme which would be exaclty same as figure I have attached above.
Thank you
Image Analyst
Image Analyst 2014-7-21
Well, you have not given your original data. The data you gave is already the "counts" - just as if you have already taken the histogram of some continuous data. What is the original data? What are the numbers in the rang 2.1 - 2.199 that occurred 43 times? And besides, the freq data you gave cannot replicate the shape of the histogram you gave so you can NOT "creat a histograme which would be exaclty same as figure I have attached" .
amberly hadden
amberly hadden 2014-7-21
Here is the orignal data set. I have created the ranges lets say 2.1-2.199 and counted numbers in series above 2.1 adn next 2.2-2.299 and again counted numbers above 2.2 and so on to get frequency
2.745 2.422 2.876 2.477 2.440 2.674 2.600 2.450 2.630 2.439 2.432 2.483 2.652 2.255 2.448 2.441 2.447 2.537 2.440 2.671 2.502 2.421 2.438 2.582 2.943 2.387 2.221 2.243 2.214 2.187 2.242 2.426 2.385 2.260 2.647 2.595 2.219 2.471 2.495 2.256 2.133 2.225 2.215
Kelly Kearney
Kelly Kearney 2014-7-22
x = [2.745 2.422 2.876 2.477 2.440 2.674 2.600 2.450 2.630 2.439 ...
2.432 2.483 2.652 2.255 2.448 2.441 2.447 2.537 2.440 2.671 ...
2.502 2.421 2.438 2.582 2.943 2.387 2.221 2.243 2.214 2.187 ...
2.242 2.426 2.385 2.260 2.647 2.595 2.219 2.471 2.495 2.256 ...
2.133 2.225 2.215];
xedge = 2.1:0.1:3;
n = histc(x, xedge);
bar(xedge, n, 'histc');

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